BLTouch on SKR Mini - Install Guide

[@donsuhaib5433]

the best guide on KZbin ,no one talks about the right wiring color ,i had to switch red and blue , thnx for sharing

[@3DPrintscape]

You're welcome!

[@Marjonnojram]

I've been struggling the last 2 days with this exact set-up. This is what i needed! Thanks!

[@3DPrintscape]

You're Welcome!

[@MichaelAnderson88]

This video saved my Ender! I've been convinced for the last year that ABL is worthless and the BLTouch is junk. Turns out my firmware just wasn't using the mesh, or something, and was severely outdated. I didn't have the probe wizard, or babystepping that could save into the offset on the fly, or a ton of other quality of life improvements. Now my first layer is going down perfectly even and the interface is easier than ever to use. Thank you so much!

[@3DPrintscape]

You're welcome, im glad i could help :).

[@ryanpaxton6803]

Great video! Followed every step and got my BLtouch to finally work. Especially loved that it focused on the SKR board. Many other youtube videos cover the generic V4.2.2 board that comes with the Ender 3.

[@3DPrintscape]

Hi. Thanks for the feedback and im glad you got the bltouch working.

[@Hawksmarch81]

You saved my printer. Was about to launch it off a bridge. Followed you tutorial carefully and now I'm printing with great results. Thank you

[@3DPrintscape]

Glad I could help :)

[@jeffbright7728]

I tried 5 different firmwares to get the BL touch to work on the BTT E3 V2, none worked. Most other compiling videos make assumptions on computer knowledge, which resulted in failed results. This video was to the point and not a watch builder video.(Definition: "Watch builder" You ask someone what time it is and they tell you how to build a watch). Thank You!

[@3DPrintscape]

Hi. Thanks for the feedback, im glad i was able to help out :).

[@andrewhafey1909]

Great video! One little tip for ya...instead of having to add G29 to your gcodes, you could always uncomment ENABLE_LEVELING_AFTER_G28. This way it's always going to use your ABL mesh. I personally like to hard code all my standard settings (including my calibrated esteps number) that way I don't have to mess with it later. Another fun thing to add so you don't have to manually mess with it later is changing the preheating presets. (line 1702). I don't print ABS, so I replaced it with PETG and set my standard nozzle and bed temps for each.

[@3DPrintscape]

Hi. Thanks for the feedback and tips. I didn’t think of changing that in the firmware but ya it would work.

[@AndrewAHayes]

A Great tip Andrew! I will be installing an SKR Mini E3 V2.0 as soon as it is delivered as I recently went through the pain of installing a BL Touch Kit from Creality with 1.1.6 BL Touch firmware and it is terrible firmware, the x,y offsets were not changed so when probing the nozzle was in the position where the probe should have been, and also when slicing a part in the centre of the bed it ends up printing far right on the bed, also they did not implement baby-stepping so you had to restart a calibration print for each change of the z offset which decided to stop working altogether after a while, and I am not 100% convinced the firmware is actually using the mesh created by the BL Touch, Creality did not answer any of my questions and I contacted them in 8 different ways, I bought the kit thinking it would save me time from editing firmware, I think I have learned the hard way about Creality's programming skills, which isn't really programming but the config editing and they cant get that right for their own printer!

[@mexinese2]

Holy crap man!!!! I have looked everywhere for a video that explains and showed exactly what you did!!! Thank you so much!! I have had the bl touch for 6 months, hooked up for 3 and never plugged it in because I had no idea what I was doing. I have watched hours of KZbin trying to figure it out and googling everything and couldn’t find anything that explained it better. No one explained the wires switched, and mine were and I was so confused. I’m new at printing so I got the already done one you showed, I just picked one and hoped it was right, but your video confirmed it was the right one. Thank you so much.

[@3DPrintscape]

Hi. Thanks for the feedback and the lack of content around alot of 3d printing is one of the reasons i started this channel. Im glad you were able to get everything running.

[@NickHoddinott]

Thanks for the video and your firmware video. There's no way I'd have worked through the issues with my SKR Mini and BLTouch without them.

[@3DPrintscape]

You're welcome!

[@SophieCompaan]

Hey thanks! Tried for a long time, your firmware edits made it work. Thaaaank youuuuuuu!

[@3DPrintscape]

Glad I could help :).

[@markpeters5471]

Thank You Thank You Thank You I had spent days trying to get it to run. With your video it was running in 2 hrs

[@3DPrintscape]

Glad I could help

[@frankwindt]

Best comment for 3Days searching .. thumbs up. Only this could help for get the BL Touch running correctly on the skr mini e3 v3

[@3DPrintscape]

Hi. Thanks for teh feedback, im glad i was able to help.

[@samsquamsch3197]

I'm considering a BTT board upgrade for my new Ender 3 Pro, and just wanted to say thank you very much for covering the layout and firmware modification for a 5-pin probe setup versus the 3-pin and 2-pin split setup, even though you were using the latter. Can't wait to silence these motors!

[@3DPrintscape]

Hi. Thanks for the feedback. If your going from an 8-bit, or the 4.2.2, board, you will love the BTT one.

[@JustCallMeQuincy]

Great guide! Covers all I needed to know to troubleshoot what other guides failed to cover. Thanks a lot!

[@3DPrintscape]

You're welcome!

[@3DPrintscape]

I hope you found this overview helpful! If you have any questions or would like other tips/tricks, just let me know in the comments. If you would like to help support the channel consider joining our patreon account at www.patreon.com/3dprintscape .

[@markpicklesimer75]

It turns out that I have V2 instructions but my BL Touch is a V3.1. I still need help

[@3DPrintscape]

@@markpicklesimer75 Hi. I can try to help out. What issues are you having?

[@markpicklesimer75]

@@3DPrintscape I installed a real touch that had all five wires in one ribbon. I was installing it into an SKR mini v2. I had planned on using the street five pen but all of the wires were in the wrong color order. What I ended up doing was stealing the JTL connector off of my Stock Z stop, Took the black and white wires out of the street five wire ribbon. Then I rewired the blue yellow and red to match the description in your video. Then I had to re-wire the five wires coming out of the BL Touch unit itself. I had it all working out with someone else’s firmware video and then I decided to make extra changes that you had in your firmware video and now it is not working. I’m not sure what changes were made that made the system not work any longer.

[@3DPrintscape]

@@markpicklesimer75Try to comment out #define BLTOUCH_DELAY 500 and #define BLTOUCH_FORCE_SW_MODE in the configuration_adv.h file. I know these setting have cause problems with some of the bltouch clones/off-brands.

[@markpicklesimer75]

@@3DPrintscape I will try this when I get home from work. I’m not sure if this is the fix because I have a real touch brand

[@MicaCZ]

Thanks a lot for this video! I was having issues with my BTT SKR MINI E3 V3.0 and Creality CR-Touch on my Ender 3 but your video was very helpful, and my printer runs flawlessly now.

[@3DPrintscape]

You're welcome!

[@CaseFace5]

well its a good thing I watched this before just plugging my signal wires in, I had the blue and red swapped like you said so you saved me some smoking cables!

[@3DPrintscape]

Hi. Glad you caught it before hand :)

[@Dvulikiy]

DUDE! You saved my ass with wiring... had red and blue reversed!!! Thanks!

[@3DPrintscape]

Hi. Cool, glad you got it working.

[@valentinmonneaux5275]

I love you men. I have try for 2 days and thanks your videos I have succeeded ! 😁

[@3DPrintscape]

Im glad i could help :).

[@bryals7]

I was with you up until ~5:30. Not sure how you got from installing the hardware to measuring the distance the probe is from the bed. I'm assuming you powered on and went it went to the home position? What firmware do you have installed at this point and how did you do that? I think I have the wrong firmware installed because mine isn't moving when powered on.

[@3DPrintscape]

Hi. Once the hardware is installed, you need to flash the firmware then set the z offset, i think your on the last part right now. Im using a custom build of marlin, but the process is the same with the creality firmware. Do you see bltouch or anything in the printer menus?

[@bpasdar]

Thank you for putting this video together. It is very appreciated. It would be immensely helpful if you could: 1) improve the screen capture quality -- on my hi-res screen It is blurry and near impossible to distinguish the text. 2) could you speak out the name of the parameter you are modifying rather than using terms like "uncomment this". Again thank you for the effort you put into this video and for sharing your knowledge.

[@3DPrintscape]

Hi. Thanks for the feedback, i will work on those going forward. The screen capture resolution has been tricky due to different sizes. I ended up settling on 1080p captures for now.

[@Budwin7]

The Failed to enable bed leveling error can be resolved by starting a bed leveling mesh after doing you z offset. This was a great video thank you for all the help.

[@3DPrintscape]

Hi. Ya that’s how you get rid of that message and you’re welcome.

[@petesmith3234]

Great video explains bltouch very straightforward thanks

[@3DPrintscape]

No problem 👍

[@adnaandavis4529]

Great guide, extremely helpful but once I click build it says - Unknown environment names 'STM32F103RC_btt_512K'. I'm using a CR-Touch but should follow the same steps right? Help will be much appreciated

[@3DPrintscape]

Hi. Remove the _512k. There was a recent update to the bug fix line that removed that from the options.

[@adnaandavis4529]

@@3DPrintscape Thanks, ended up trying that and successfully compiled the firmware but now it says 'no printer attached', any idea what the problem could be?

[@3DPrintscape]

@@adnaandavis4529 I would expect it to say that for about 20 seconds, then it should attach. If that's not happening, I would check your wiring.

[@brunogomesdeassis5825]

First of all, thanks for the video. I did exactly what you did, however when I press Auto Home the z axis collides with the table. I'm using the connection as shown. To rule out that it wasn't wiring, I used the BIGTREETECH firmware and it worked perfectly, however it doesn't allow negative z_offset and I would like to use my own firmware like you. Do you know what I could have done to prevent the z axis from stopping with the BL touch?

[@anotherpix7471]

I've been having issues with setting up the firmware. for some reason every #define line is an error. i saw that was the case in the video to, but then they just dissapeared at 11:47. I tried following the axact steps, including commenting the s stop out and back in, but nothing changed like it does in the video. these errors also mean i can't compile the firmware.

[@3DPrintscape]

Hi. Can you provide the full error you are getting?

[@tucker2251]

Had an issue with my bl touch inconsistently deploying. Seems to have been fixed by re-terminating the red-blue-yellow cable with the proper connector. The longer connector is meant for different sized pins and was sitting very loosely on the onboard connection.

[@3DPrintscape]

Hi. Thats an interesting one, thanks for sharing.

[@CincyNeid]

every time I go to compile this I get an error. "include errors detected. Please update your includePath. Squiggles are disabled for this translation unit"

[@3DPrintscape]

Hi. It sounds like the firmware folder may need to be moved closer to the root of the drive you are working on. The folder structure of the firmware goes pretty deep and Windows doesnt like long paths/file names. I typically create a folder called firmware right off my c drive and put the firmware there.

[@Dave-nt4hl]

I'm having issues with the bltouch probing off the bed on the y-axis during bed leveling. The initial probe (homing probe) is perfectly in the middle. The second probe (front left) then tracks to miss the bed. I also have my offsets set correctly (given offsets for my Hero me 5). So far to get printing i've had to change the probe offset for the y-axis to be technically incorrect. The home probe is not centered, but the rest work...Any ideas?

[@3DPrintscape]

Hi. First make sure you cleared your eeprom. If thats done and you are still having the issue you can adjust your #define X_MIN_POS & #define Y_MIN_POS values. I think im running -5 and -10 as i had a similar issue.

[@FF_AlohaEdition]

you could just put a paper underneath then crash the hotend and the bltouch into the build plate slowly to leave two marks on the paper then use a caliper to measure

[@3DPrintscape]

Hi. That may work but i wouldn't do it that way. Its not worth the risk of damaging something.

[@BLMaros]

This got me exactly where I needed to go, Thanks!

[@3DPrintscape]

You’re welcome

[@JrFrOmDaBx]

In the platformio the default_envs is mega2560 downloaded file 4/3/21.

[@3DPrintscape]

Hi. If your downloading it from Marlin that doesnt surprise me. You will want to make sure you update it when you download a new copy or anytime your switching between boards.

[@JrFrOmDaBx]

@@3DPrintscape thanks tried it because it would always give me a error and I did download from marlin. I deleted mega2560 and put the one in the description and it worked. Thanks a bunch that was kicking my......

[@3DPrintscape]

@@JrFrOmDaBx You're welcome, glad i could help.

[@ryanmitchell405]

I’m having the same problem. It doesn’t matter what I do I can not change it from mega2560 😩 any ideas?

[@3DPrintscape]

@@ryanmitchell405 You could try to use the Marlin auto build plugin, it makes changing between environments easy. kzbin.info/www/bejne/e5bViHx3iaqmg5I

[@SouthBayTommy]

This is more of a Viscose issue, I don't have that "check mark" on the bottom. I've been struggling for about 4 days now to set this stuff up. Please help.

[@3DPrintscape]

Hi. It sounds like Platform.io wasnt installed, VS Code wasnt restarted after the install, or the wrong firmware folder was opened. The folder should be the top level folder and have the platformio.ini file in it.

[@lynnkeith2289]

@@3DPrintscape You have to install C++ in VS. I had the same issue and that fixed it!

[@Christopher-nt6fg]

If you have the C++ and Platformio IDE extensions installed, check to make sure you have opened up the folder which contains the 'platformio.ini' file. The check mark won't show up unless this file is at the top of the folder file structure. You might not have the correct folder open because Windows "Extract All" will add another folder layer during the extraction process.

[@3DPrintscape]

@@lynnkeith2289 Im glad to hear its fixed. platformio installs C++, but if something happened to that install I could see it causing the behavior you saw.

[@3DPrintscape]

@@Christopher-nt6fg It definitely possible he had the wrong folder selected as well, but if C++ wasn't installed it would behave similarly.

[@silklake4589]

Thank you for this, i have this exact setup on the way soon .

[@3DPrintscape]

Glad I could help

[@markkranc4478]

Shouldn't the Z offset be done with a pre-heated bed and nozzle? There is expansion of each after reaching temp and this will affect the gap, not insignificantly.

[@3DPrintscape]

Hi. I tend to make the final adjustments with babystepping, which is done when everything is up to temp, but to answer your question. Yes, you should have the nozzle and bed heated up.

[@goddessofwar4955]

This video worked great.. except one problem. The TFT, by default (I have the BTT TFT35) when I try to enable it, it just fails to compile saying "LCD doesn't support bed leveling" I'm using the SKR Mini E3 V3, as you have here, so.. still working on this to get the BLTouch to trigger. It also seems to have removed a ton of options from my TFT (as in, I can't select type of load, like PLA/PLA+)

[@3DPrintscape]

Hi. I will need to look into this one more when i work on the Marlin builds for the v3.

[@3dprintingtoday]

Can you plz help me im trying to do this on my anycubic mega zero with the stock board would there be a way that you can get all the firmware ready and like share the done file so all I do is put it on my SD card ove been working on it for about 10 hours and its not working

[@3DPrintscape]

Hi. I dont have firmware prebuilt anywhere, but I have been considering going that route. What errors are you having? Also, you can reach out on Discord for assistance as well. discord.gg/Bu94EYVkrU

[@3dprintingtoday]

@@3DPrintscape would you be able to make me firmware? i can pay you to help me get it working

[@3DPrintscape]

@@3dprintingtoday Hi. i may be able to help out some tomorrow or Friday morning. Can you join my discord server and message me there? discord.gg/Bu94EYVkrU

[@macan7042]

I attached bl touch like u did in video and download firmware bltouch z homing. Now z motor only can go up. Same thing if i try trough menu manualy lowering z axis.

[@3DPrintscape]

Hi. Sounds like the wiring is wrong or the firmware doesn't match the wiring. How is it wired and what firmware are you using?

[@sinasoleimanian4092]

that was wonderful so many videos but non as good and clear as this

[@3DPrintscape]

Glad you liked it

[@michaelstewart1149]

I can’t seem to find the babystepping feature. I was able to compile it fine at first, but had to recompile another .bin file for the offsets when my printer autohomes. Any tips? I’ve got what you toggled and even enabled the feature where it’s always available. No dice still.

[@3DPrintscape]

Hi. Try to clear eeprom if you haven’t already. If you have maybe check in the menus for something that sounds similar in function, maybe they moved it.

[@SidewaysGts]

Such a great guide, but i feel like im being a dumdum and doing something wrong. Ive got the creality BLTouch, set it up in the way that has you using the 3 pins on the main port of the board (Swapping my pins in the connector around so they were blue/red/yellow, the blue/red were reversed initially), and then using the "z-stop" 2 pin location on the board. I got the firmware for the z-homing, put it on an SD card- Turn the printer on, it clicks the BL-Touch sensor a few times, then bonks at me about not being able to enable bed leveling / invalid mesh. When I look through my options, I see "MBL" instead of "ABL", and no options for the BLTouch. Seems like its not updating the firmware properly, but cant figure out why

[@3DPrintscape]

Hi. It sounds like it may have not taken the firmware. Can you check to see what under the about/info screen?

[@SidewaysGts]

@@3DPrintscape From the info screen my printer says: "System: Marlin bugfix-2.0.x board: Bigtreetech_gd_tft35 Firmware: v27.x" Hopefully this is the right information. And thank you so much for your help by the way, i super appreciate it!

[@3DPrintscape]

@@SidewaysGts I would try to flash the firmware again. You should see bltouch in the menu after doing it.

[@landon3105]

Hello, thank you for making this video, it was very helpful. I’m stuck one a problem though. I was able to compile and flash my firmware onto my printer, but now when I go to auto home, the auto homing sequence doesn’t even touch the X or Y endstops (which would lead to some collisions later on if I tried to do anything else with the printer). But The Z sequence works with the BLTouch probe just fine. I flashed firmware from bigtreeTech to confirm it wasn’t a wiring issue, and the auto homing worked perfectly fine for X and Y with the bigtree firmware. However there were some problems with the Z home sequence that are more troublesome than they are worth. Anyways I’m assuming this is now just a coding issue. So now I’m trying to make my compiled firmware work. Do you have any suggestions to fix the x and y homing issue? Thanks.

[@3DPrintscape]

Hi. Can you try one of the builds from my site? I want to try to narrow down what the problem could be.

[@landon3105]

I ended up restarting with the same btt code. I followed a step by step guide online for Ender v1s and it ended up working. Not sure what the issue was as I was watching several different videos (probably the root problem) on how to code the firmware, but it was definitely a coding/user issue

[@3DPrintscape]

@@landon3105 Thanks for the update, glad you got it working.

[@TonyChazz321]

what exactly are you measuring on the y axis? nozzle tip to front of x gantry?

[@3DPrintscape]

Hi. Its the distance from the nozzle to the probe on that axis.

[@dempseydoodles]

My BL Touch has the wiring harness with BLUE, RED,, YELLOW, BLACK, WHITE. Can I place this where the "BL Touch" goes according to your first selection/option goes? My BLUE wire is on the outside (first wire) then the RED and so on. Also, according to your video, where your BLUE, RED, and YELLOW wires are, would the next wires be BLACK then WHITE, or WHITE then BLACK?

[@3DPrintscape]

Hi. The short answer is it depends. The problem is i have seen these shipped with too many different wiring colors. I would recommend mapping the color back to the pin and making sure its plugged into the right spot on the board.

[@AndrewAHayes]

When I follow your instructions on VS Code I don't have checkbox to build on my (latest) version there are 2 errors in the far bottom left though, any thoughts on this? The 2 errors are to update include path

[@AndrewAHayes]

I fixed this, I had been in the Python environment prior to configuring this firmware and it loaded up the next time in python, I just switched to Platformio

[@3DPrintscape]

Hi. Im glad you got it working, though the python environment shouldnt be needed. I don't have that running now and it works for me. My guess is that it installed/repaired another component.

[@AndrewAHayes]

@@3DPrintscape I was using python for something else prior to configuring the firmware and VS Code must have loaded in Python mode when I came to configuring Marlin, that's why I was getting errors and no checkbox

[@fdjohnson1961]

Hi Robert, Thanks for all the great how-to videos. When I initially added the ABL gcode (G29 ; ABL) to the Cura profile for the Ender 3 Pro, everything functioned properly from OctoPrint until I adjusted the bed a week later. The Z Offset and ABL calibrations from this video was executed countless times with no success. After hours of playing with these settings, I notice the calibration functioned properly through the printer display screen but failed via OctoPrint. I removed the G29 code from the Cura profile and it is now working from OctoPrint. I don't believe the G29 code execution itself from OctoPrint is the issue. Is the G29 pulling stored parameter values from OctoPrint or the controller to calculate the new ABL parameters? My printer has the BTT SKR MINI E3 V3.0 Controller and TFT35-E3-V3.0.1-Touch-Screen-Display.. Is there any other area I need to be looking at?

[@3DPrintscape]

Hi. Thats interesting, it has to be tied to how octoprint handles things. It bypasses a lot and wants things it own way. The g29 command runs the mesh and stores the peramitors. You need to save settings for them to persist through a power cycle. What happens if you just send the g29 command manually from octoprint?

[@articulationseries]

So I downloaded the BigTree Firmware and its STM32F103RC_btt_maple, do i still need to change it to 512K

[@3DPrintscape]

Hi. I havent grabbed the latest build in a while so im not sure if the recent changes from the bug fix line were merged to it. If they were not, you will need to add the _512k, if they were you will get an error if you add it and try to compile.

[@Flix_Film]

Hey! Nice Video! But I have the problem, that when I use z-stop or the z-probe - z-stop my printer keeps moving down. You know a solution?

[@3DPrintscape]

Hi. how is the bltouch wired?

[@martinplatzer2374]

Hello, i can`t get the bltouch to run. Homing the z-axis doesn´t work-> stopped. With M119 i get the message z min: triggerd, shouldn`t it open? How can I fix this problem? Z_MIN_ENDSTOP_INVERTING false, changing to true doesn´t work, because marlin can´t compile it. Thanks

[@3DPrintscape]

Hi. My initial thought is that the sensor wires are reversed or the config doenst match how the bltocuh is wired. Z_MIN_ENDSTOP_INVERTING should be false if you are running a build from after June 2021.

[@erwinvigilia6303]

The _512k was omitted because some of the earlier versions (V1.2) used ARM processors with 256k memory, they likely forgot to update it when copying it over for the V2.0 with the larger flash

[@3DPrintscape]

Hi. Thanks for the info. I figured it was a change meant for the older boards that didnt get corrected for the newer ones that support it. I just know its caused a lot of issues for people.

[@allanpenston7359]

Just tried installing the SKR E3 V3 board, But the hot end (E0) will not heat. This i the second board with the same error. I there anything that I could have done to cause this. Great Video

[@3DPrintscape]

Hi. Can you verify its plugged into the correct ports and that the cable/heating element isnt damaged?

[@bruceyoung1343]

I followed your video step for step. Once you made a change vsCODE I paused the video and made SAME changes. Ok. Mine compiled just fine. I got my ender 3 pro with Mini e3 v3. Well almost. The blTouch levels the center of the bed but when it’s starting a print and lays down that warmup line on left side of bed, we’ll the hot end is still 1/2” off the bed. The abl pin does not extend. And the assembly does not lower to print. I thought at first it was the gcode of the file I tried. So I tried a different gcode and same thing happened. Is there a firmware setting I could look at for this ??

[@3DPrintscape]

Hi. It sounds like your z offset isnt set, or not set correctly.

[@tupapalote23]

i need help on how to update things on my printer.... where do i go on my printer screen????

[@3DPrintscape]

Hi. If the firmware is on the sd card it will automatically pull it in when the printer is powered on.

[@jamesnguyen7628]

Hi, I wired my BL touch the way you showed, and downloaded the firmware but my printer won't move down. It responds to everything but Z down so the autohome also doesn't work. Any suggestions?

[@jamesnguyen7628]

Also, I tried following through your VSCode tutorial but I constantly just run into compiling problems.

[@3DPrintscape]

Hi. Can you send pictures of how your bltouch is wired and the firmware you used to me? My email is [e-mail]

[@NATH-vo9wb]

Hi I need help I can't compile the program, I use default_envs = STM32F103RC_btt. but still failed to compile

[@3DPrintscape]

Hi. What is the actual error your getting?

[@FreedomFactory3D]

For those of you having compile issues with your default env, in 2022 + try using (STM32F103RE_btt_maple) this usually fixes any compile issues.

[@3DPrintscape]

Hi. Thanks for sharing. Its also worth checking out the marlin auto build plugin, it helps alot.

[@FwolfgangS]

so i always get stuck at compiling. the check mark to compile doesnt show up and it states i have errors in both file with a squigly line why cant i compile i followed everything please help

[@3DPrintscape]

Hi. What folder do you have open in vs code? The checkmark not showing up usually means platformio is not installed or the wrong folder is open.

[@duckdestroyersrobotics4031]

When I add the file to the sd card and turn the printer on it does not upload to the board, do you know why?

[@3DPrintscape]

Hi. Try to add a random date or number to the end of the file name to make it unique.

[@SølveBjelland]

Hello I have followed all the steps and loaded the firmware on sd card, my probe wont work its a 3d touch probe.

[@3DPrintscape]

Hi. Are you seeing bltouch setting in the menu on the printer? Im trying to see if it actually took the firmware.

[@ix7amdon174]

I do everything right but I can't build it I just got an error why !!!

[@3DPrintscape]

Hi. What error are you getting?

[@ix7amdon174]

@@3DPrintscape STM32F103RC_btt_512K FAILED 00:00:00.569

[@ahmetemindilben]

@@ix7amdon174 did you fix it? I have the same problem

[@juancarlos3989]

Hello, this Firmware works for an Ender 3 with a BIGTREETECH SKR-Mini E3 V2.0 board... and TFT 35 E3 V3.0...? Congratulations for the video and thank you

[@3DPrintscape]

Hi. Ya it should work fine with that combo assuming the tft firmware is up to date.

[@mingo7687]

yeah for the final step i dont know if im dumb or if it updated, but how do i kick off the build, there is no checkmark for me

[@3DPrintscape]

Hi. The checkmark not being there is typically caused by the platformio/c++ plugin not being installed (or the install was bad) or the wrong folder is opened in workspace.

[@chriswildy5484]

Very informative and has helped, but I have an issue I haven't been able to resolve. I'm running the SKR mini e3 on a CR10S5 so had to also adjust bed size, but otherwise used your settings on BTT firmware for 1.2 using the probe/servo pins on a 3dtouch. When trying to level, the z doesn't stop when the probe shows it's triggered, which of course leads to an error of hitting the endstop. I have adjusted my z offset....is there another setting I need to look for? I would think from other videos once triggered the z should stop even if in the air? The LED does show it's triggered, but keeps going.

[@3DPrintscape]

Hi. Thanks for the feedback. How is the bltouch wired? It sounds like you have it wired with all five pins going to the bltouch port but the firmware configured for z homing with the bltouch.

[@michaelgrimm6926]

I followed all except downloaded the Marlin-bugfix-2.1.x. I do not see.pio file. all hidden files are shown too. can you please help? I also do not see Firmware.bin file anywhere

[@3DPrintscape]

Hi. Try grabbing the stable release to see if everything is there.

[@kyehillstrom]

Hi. So I keep getting this Error: Unknown environment names 'STM32F103RC_btt_512K, and I'm not sure what that means. Any ideas?

[@3DPrintscape]

Hi. Remove the _512k, that was taken out of the bug fix line about 6 months ago.

[@paulmaher1705]

Do you need to change the bl touch wiring on the v3 board?

[@3DPrintscape]

Hi. If you leave the z stop connected and the bltouch connected to the bltouch port you shouldn’t. That is assuming you have one with the 5pin adapter.

[@bowhunter3125]

do you have a video for the skr mini E3 V3 board?

[@3DPrintscape]

Hi. Not yet, i still need to pick up the v3.

[@bowhunter3125]

@@3DPrintscape dang, wanna gte my printer upgraded but theres no firmware for it with BLtouch and filament runout

[@3DPrintscape]

@@bowhunter3125 I think the only option will be a custom build. If you reach out on discord I can try to help.

[@bowhunter3125]

I have the V1.2 board, when i chose Bilinear for bed leveling, my compile fails every time, what should i use?

[@3DPrintscape]

Hi. What errors is it giving you?

[@bowhunter3125]

@@3DPrintscape i am actually going to go with a V3 board, instead.

[@3DPrintscape]

@@bowhunter3125Sounds good, let me know how you like it.

[@ward2657]

I'm having problem with mine where it will deploy, but when trying to trigger it and it fully depress it will bot do anything. it will keep moving unit it turn it off.

[@3DPrintscape]

HI. It sounds like the wiring isnt right or the firmware doesnt match the wiring.

[@JasonEllsaesser]

I’m having trouble with the platform io tab in vs Code and it will not let it complete the build it will fail it

[@3DPrintscape]

Hi. What error are you getting? It should be in the console output.

[@Tylerfrankhall]

My "default_envs" is set to mega2560....do I need to set it to the "STM32F103RC_btt_512K" I have the same setup as your video.

[@3DPrintscape]

Hi. If you using a build after June, you will want to change that to STM32F103RC_btt. The _512k has been removed as an option.

[@snowmanDIY]

Does 1M extension reach because I see people complain in reviews it doesn't?

[@3DPrintscape]

Hi. It has been working for for me. Maybe they mounted the bltouch a little higher, the one adapter allows it to move up and down.

[@snowmanDIY]

@@3DPrintscape I think the complaint is it doesn't reach the main board with the cable.

[@3DPrintscape]

@@snowmanDIY Ah ok, i was thinking of the 1mm adapter on the mount, sorry. The stock one reached fine for me. I bought a generic one that I ended up having to extend the cables on.

[@abtrooper82]

Is there an easy way to avoid the bed moving too far forward when leveling the bed. I have a tension belt adaptor for the Y-Axis which upsets the bed when measuring as it comes too far forward.

[@3DPrintscape]

Hi. You could change the bed size in the firmware.

[@abtrooper82]

@@3DPrintscape Thanks, I have given that some thought. Thanks for all your help.

[@3DPrintscape]

@@abtrooper82 You're Welcome

[@AlexRamirez-bs8fo]

I’m a bit confused, if my wires came with the 5 pin, do I still need to change it for the 3 pin adapter? Also, with the 5 pin connector, do I still need to change wires around to prevent any possible problems?

[@3DPrintscape]

Hi. No, use the 5 pin adapter and plug it into the bltouch port and leave the z-stop plugged in. Also, make sure the wiring is in the right order on the 5 pin adapter.

[@quickshot123412]

maybe I am crazy or just dumb, but I dont have a check box when trying to use the btt version for the skr e3 turbo.

[@3DPrintscape]

Hi. The checkbox is only there if platformio is installed and the firmware folder that has the platformio.ini file is opened. If verified both of those, try to reinstall the c/c++ plugin.

[@mingo7687]

I have a issue, the probes are working fine but when you start to print it is as if the printer forgot the layout of the bed. the z axis wont move to adjust for the bed being uneven, any idea on how to fix this?

[@3DPrintscape]

Hi. How is the bltouch wired and what firmware are you using?

[@mingo7687]

@@3DPrintscape the firmware used in the guide, and the bltouch itself is working completely fine. The problem is exactly like in this video kzbin.info/www/bejne/qnurq36foLymrck. My caveman brain just doesnt know what hes doing to fix it lol

[@3DPrintscape]

@@mingo7687 I cover BTT and marlin firmware in the guide, so i would need to know what one/version you are using and how the bltouch is wired.

[@mingo7687]

@@3DPrintscape sorry about that, but im using marlin and its wired to the bltouch port

[@3DPrintscape]

@@mingo7687 Can you try one of the firmware builds from my site? I know they are working, so that will give us a starting point.

[@beebees3d]

Your bltouch for z homing is the only firmware I could get working, btt firmware I could not get working not a lot of support from anyone with clear directions…. With this board being out for as long as it has been there should be correctly working firmware

[@3DPrintscape]

Hi. Im glad you were able to get it working with my firmware and i created the resources to help people out because of the lack of information available.

[@beebees3d]

@@3DPrintscape also thanks for your service I appreciate it.... ended up watching most of your videos and compile my own....just watched the raspberry pi touchscreen vid... again thanks alot for the content

[@rickzfpv3118]

Robert this video is great I have 2 ender 3 pro'2 and 1 has this exact board in it so this video helped me get my bl touch installed perfectly. I am running the factory firmware on it but would love to build a version like you did in the video. I wish I could get a copy of the one you built on here, as my printer is the exact same. I am just not quite comfortable enough to write my own firmware yet LOL. I was able to obtain a full version of marlin for my other printer which has the stock 4.2.2 board and it runs so much better than the creality firmware. Just wanted to say again great video it helped me very much.

[@3DPrintscape]

Hi. Thanks for the feedback. I actually have build available here that you can use. 3dprintscape.com/marlin-firmware-builds/

[@HushNinja]

This was very helpful. Thank you!

[@3DPrintscape]

You're Welcome!

[@BrothaManLemon]

Hello, you said for the wiring you have to swap the blue and red cord right? how do i do that?

[@3DPrintscape]

Hi. You should verify the pin out for your bltouch, ive seen them shipped with different wiring colors. If yoou need to swap the pin, there is a little tab you can pull on the adapter that will allow you to pull the wire out.

[@BrothaManLemon]

@@3DPrintscape Thank you so much i really appreciate that!

[@3DPrintscape]

@@BrothaManLemon You're Welcome

[@BrothaManLemon]

@@3DPrintscape hey one more question. so if i still have the stock fan cover i can just take either the SKR firmware or the Marlin firmware, download it, change name to firmware.bin, pop it on an SD, put it in my printer and then I'm good? or do i have to make changes in the firmware still?

[@BrothaManLemon]

i downloaded the SKR Mini Firmware and when i turn it on and hit bed leveling it just says home z first. i downloaded the frimware where you attach the BLTouch to the Z stop

[@constantinsimion5129]

Hi I updated to bltouch and I followed your video but I get error when I try to compile and then I use there firmware but still not working I don’t know what to do

[@3DPrintscape]

Hi. What error are you getting when trying to compile?

[@constantinsimion5129]

@@3DPrintscape I need to send you a pic are s as lot of red line

[@constantinsimion5129]

@@3DPrintscape can this file be send to email I was asking I don’t know if you don’t mind send it to me Thank you!

[@3DPrintscape]

@@constantinsimion5129 You can email me at [e-mail]

[@mingo7687]

i have an issue, after a while my bltouch started to probe off the bed, i tried to rewrite the firmware but it seems to not respond to it, ive done some research and i says i need to reset eeprom which i have no clue to do, any help?

[@3DPrintscape]

Hi. Make sure your offsets are right, so -44 and -7 if your using the stock mount. The select restore defaults to clear the eeprom. I have written instructions covering the process that may help you out in the video description.

[@mingo7687]

Thanks for teaching me how to clear the eeprom, but the issue still remains, that being that no matter the change i do to the firmware the bltouch probing placement nothing changes just to make sure im on the same page this section is how you change where the bltouch probes right? * +-- BACK ---+ * | [+] | * L | 1 | R

[@3DPrintscape]

@@mingo7687 Try setting these values to force it to move some, I had to do something similar in the past. #define X_MIN_POS -5 #define Y_MIN_POS -10

[@mingo7687]

@@3DPrintscape i finally got around to trying to fix it hahahaha, but this totally worked! Thanks man youre a legend!

[@mingo7687]

@@3DPrintscape and here you thought i was done lol. After doing some tinkering i realized that the gaps in-between each time it probes is too large for my bed, can i reduce the amount of probes/tighten the gap? thanks for dealing with me btw lol

[@IlanPerez]

i have tried to add the fireware.bin to my sd card and put it into the tft slot. The firmware doesn't load. Any advice? The firmware.bin file is in the root and i did manage to upgrade the tft firmware following your video tutorial. no sure what to do here now

[@3DPrintscape]

Hi. Make sure the SD card is 8GB or less and formatted as FAT32.

[@ericscott1501]

Much appreciated

[@3DPrintscape]

Hi. Thanks for the feedback :)

[@Ares771000]

The tutorial is pretty good but sadly i cant make it, they update the example files and add some configurations that are not in this video and im lost.. a lot of issues related to the AXIS_DRIVER, AXIS_IS_TMC, also in Software Endstops are some extra lines not only xyz now ijk are added i dont know if i should disable those if i dont have those extras (the example files that i used was creality ender 3 pro skr mini 2.0 )

[@Ares771000]

i solve it, i download again the files but now the latest files from marlin, i did your configuration and everything is working, thank you for your work.

[@3DPrintscape]

Hi. Im glad you were able to get it to work. I plan on making an updated video on this once enough changes are required.

[@szalonyorganista1401]

Hey, do you know why wherever from I download a marlin, I dont have .pio folder ? I dont know what to do. If this helps i have windows 11 and i see other dot files like .github Please help :(

[@3DPrintscape]

Hi. The .pio folder should get created when you build the firmware, its not there by default.

[@cdeneui3]

I followed step by step and I'm missing the babystepping option from the tune menu. Double clicking brings me to z offset but I cant adjust anything while printing. Any ideas? Thanks!!

[@3DPrintscape]

Hi. Try to clear your eeprom.

[@Iamjacobee]

So on mine I wired it the same way you did and my Z stop DOES NOT work I cant figure out why but everything I try the Z axis doesnt stop and keeps hitting the bed until I power it off, any suggestions??

[@3DPrintscape]

Hi. I think you reached out on discord and the issue was related to the firmware. If not let me know.

[@VeneerSlinger]

There's no check at the bottom left of my hot bar only 2 icons and it says no problems. The only thing I havnt done is the probe to nozzle distances because I don't have my hotend mounted currently

[@3DPrintscape]

Hi. There are a coupel of things that would cause the checkmark not to be there 1) you dont have the right folder open 2) platformio is not installed 3) plaformio failed to install the C/C++ plugin.. Can you check all that?

[@VeneerSlinger]

@@3DPrintscape Vscode says the terminal process failed to launch path to shell executable and then says my file doesn't exist. Platformio installed. Aswell as c/c++

[@3DPrintscape]

@@VeneerSlinger Sounds like there may be an issue with the vs code install, or other security tools on your computer interfering with it.

[@jonathanpini]

I can’t find anything about cr touch is it compatible?

[@3DPrintscape]

Hi. According to the documentation its not, but I havnt tried it so i cant say for sure. I have has a couple people ask, so i may end up just buying one to test.

[@Damjanhd]

I just can't manage my printer to work with this and also tec support from BTT is really bad

[@3DPrintscape]

Hi. What issues are you having.

[@ChristophLehner]

you are the real MVP thanks!

[@3DPrintscape]

You're Welcome

[@discoverdesigncreate235]

@3D Printscape Hello. I am trying to install my BL touch that I got straight from Creality, but It is designed for the original board... I cant rearrange the wires on the connecter. Can you please help?

[@3DPrintscape]

Hi. Ive seen the bltouch shipped with 5 wiring variances at this point. I wouldnt count on getting the right one anymore as there is no way to guarantee what your getting. If the one you have doesnt match what is needed, you will need to change the pinout.

[@bomxacalaka2033]

My printer ignores both ZSTOP and BLTOUCH, I've done everything exactly like you but with the 5 pin configuration(the ZSTOP is still connected but not in use by the firmware). When I try to home it ignores both stops, it doesnt work properly if I use the bin from bigtreetech but they only do a single probing which is why I wish I could use the custom firmware.

[@3DPrintscape]

Hi. If it works with the BTT firmware, the wiring is good so it sounds like there is an issue with the firmware. Im guessing it doesnt match how its wired. Make sure you comment out #define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN and uncomment #define USE_PROBE_FOR_Z_HOMING in the firmware.

[@bomxacalaka2033]

@@3DPrintscape so I’ve checked that and swiped them and nothing. My version is a bit different than yours it seems, on min_software_endstop urs goes like X Y Z but mine goes X Y Z I J K which tells me they have changed the software on the download page. Would you mind sending me your configuration files so that I can compare against mine and try them.

[@bomxacalaka2033]

@@3DPrintscape nvm I fixed it, BLTOUCH_FORCE_SW_MODE had to be commented out, i guess my bltouch isn’t a good clone then.

[@3DPrintscape]

@@bomxacalaka2033 Im glad you got it working. The definition of a "good clone" is really subjective. If it works and you were able to save some money then it seems ok to me :).

[@shaneswartz6053]

Followed this to the T, and upon first start, the Marlin blue screen was kind of faded and then turned off. But noticed that if I unplug the BLTouch ribbon connector on the sensor itself, my E3Pro starts up just fine with the regular bright Marlin screen and then goes to the "Ender 3 pro ready to print". I've double/triple-checked my connection on the SKR Mini e3 v2, and it matches yours identically. Any tips?

[@3DPrintscape]

Hi. I would need to get a copy of your config files to provide assistance. Can you email them to me or send them to me on discord? My email is [e-mail] and the discord invite is discord.gg/Bu94EYVkrU .

[@emt2071]

I have the exact same problem. My screen is dark and it doesnt work unless I unplug the BLTouch connector from the sensor. Do you know how I can handle this problem?

[@3DPrintscape]

@@emt2071 Hi. It sounds like a cabling or firmware issue. If you send me pics of the cabling and let me know what firmware you are using, I can probably help.

[@Yngwiejmalmsteen08]

Hi I’m thinking of upgrading my board to a skr mini v2 did your ender 3 pro used to home with bltouch in center of bed without using z end stop switch? If so when downloading the firmware do I need the same version as you?

[@3DPrintscape]

Hi. Yes the printer would home in the center of the board with the bltouch. I have my firmware available to download if you want to try it out. 3dprintscape.com/marlin-firmware-builds/

[@Yngwiejmalmsteen08]

@@3DPrintscape thanks for replying to my comment that’s greatly appreciated I’m waiting for my v2.0 board to arrive once it does I’ll be upgrading I just wanted to be sure which firmware in need for the bltouch to home in center and not use the z axis end stop switch has I removed it when installing bltouch

[@3DPrintscape]

@@Yngwiejmalmsteen08 You will want to use the z homing software. Either the one available from BTT github page or my site.

[@Yngwiejmalmsteen08]

@@3DPrintscape thanks I received my board today I swapped out all the cables and changes the cables on the bltouch like you did after turning on printer I see it load marlin 2.0 on the skr board but after copying the z homing firmware onto sd card it doesn’t seem to sit at a blue screen just boots up with marlin on screen? I see people saying it needs to be flashed with sd card that come with it but I didn’t receive a sd card with my board

[@Yngwiejmalmsteen08]

I have tried many sd cards and renamed the file to firmware.bin but still no success it refuses to load the firmware it seems and just boots as normal..somebody did suggest to add file called firmware and file called firmware.bin to the sd card could this be the problem

[@abtrooper82]

Noticed your comments about the ABL Mesh error after updating the TFT firmware. However, when I do the mesh leveling it only appears to attempt to do it at the bottom front left and doesn't move across the board. to the other points, as I would expect. What am I doing wrong?

[@3DPrintscape]

Hi. Is the probe getting triggered at the bottom left? If there is a error in the reading, it will just stop there.

[@abtrooper82]

@@3DPrintscape I will check, also need to make sure I have installed it correctly. Progress :-) 1. Installed the BL touch unit and wired it so that the original Z-switch stays in place 2. Installed the required firmware for using the BLT touch from the Bigtreetech Github 4. Restarted the Printer 5. Ran the ABL bed leveling which seem to work this time. Although I have a Y-Axis belt tightner adaptor, which confused things when the bed went to take the top measurement, the bed moved too far forward and grumbled (there must be a setting I can change to change the travel distance, if so please advise) , it was ok after that point and I saved the settings. The only thing I could not do was set the P-Offset (I think it's shown as Z-offset on your video). I know if I used the firmware which does not require the original z-end stop switch, the function worked to a point. If I use it as it now, it homes the printer. Raises the head 10mm and then should go to the center of the bed, but on mine, it tries to move the head to the left while its in the home position. and I have to turn the printer off as the motor/belt for X-Axis start making a hell of a noise. Any ideas why?

[@3DPrintscape]

@@abtrooper82 What firmware did you end up using?

[@abtrooper82]

@@3DPrintscape All I installed was the "firmware-bltouch.bin" file, should I have installed the file "firmware.bin" to replace the factory stock firmware first? and then apply the "firmware-bltouch.bin" after or is the "firmware-bltouch.bin" the newest firmware for the board including the BLtouch function. The notes on the bigtreetech github seem to imply the firmware.bin file for the ender 3 does not support BLT, hence why I used the firmware-bltouch.bin" file. Sorry for all the questions UPDATE : I think I know why - I left the original Z-endstop switch connected to the board, so I'm guessing this will confuse the printer and it's going to assume that the home position for the z-offset is now at the bottom left of the board and not the centre of the board, Correct? Should have paid closer attention to you video if this is the case :-)

[@3DPrintscape]

@@abtrooper82 The firmware should have been named firmware.bin, I don't think the skr will pick up the firmware if its named something else. Also, the z stop should still be connected in most cases.

[@markpicklesimer75]

Hello, I'm getting M999 error when I have my BL Touch installed. Do I need to do any rewiring? I have a V2 BL Touch with all five wires in one ribbon. What order should the wires be in? The ribbon comes with them in (from top to bottom) Blue, Red, Yellow, Black, White.

[@3DPrintscape]

Hi. The wire order you mentioned is correct, so if its in that order its good. Did you make any other changes to the printer and can you provide more info on your setup.

[@braydenparady9238]

Great Video! So, I followed these instructions, and everything checked out but when I tried to build the code I got an error "The terminal process "C:\Users\brayd\.platformio\penv\Scripts\platformio.exe 'run'" terminated with exit code: 1." And at the top of both the configuration.h and configuration.adv.h. There was a red squiggly line under “* Marlin 3D Printer Firmware” on the first line of both configurations. That was the only error present. Any ideas on what to try?

[@3DPrintscape]

Hi. There should be a full error in the terminal output, can you send that over?

[@dylancarvalho6704]

I have followed your instructions exactly but I’m facing an issue, the display freezes and i cannot use the control knob when I’m printing any file. Also at times my 3D Touch v3.0 does not deploy and only starts working when I reflash the firmware.

[@3DPrintscape]

Hi. Can you try the firmware from my site? That will help point us towards the problem. 3dprintscape.com/marlin-firmware-builds/

[@dylancarvalho6704]

@@3DPrintscape I have an Ender 3