CNCjs Touch Screen with Raspberry Pi - controller for GRBL

[@alanmccabe8009]

Many thanks I could not have done this without your video :-)

[@D.E.Hammer]

Glad it helped you out!

[@buxtor]

DE, great video. Just stumbled across your channel looking for some tips on selecting acrylic bits. Boy was I surprised! Very nicely done videos, thank you for: 1.) Inclusive information, elevating even the newest of cnc noobs to your level of understanding. 2.) Showing each step, letting us make the choice to skip to what we need. 3.) INCLUDING CODE for us to drag n drop in Linux! No idea what a time saver that is, i.e., capital letter here, space there, yadda, yadda. I'm excited to move through your channel and all its content! Keep em' coming!

[@D.E.Hammer]

Thank you, and I am here for any questions that may arise. Have fun in your cnc and acrylic cutting adventures.

[@AustinStAubin]

Awesome install walk though for beginners. Let me know if you want to talk though any parts of the CNCjs Raspberry Pi Install Script or functions for a deeper dive video.

[@D.E.Hammer]

Thank you Austin, will do!

[@dronesvisionsaeriennes]

Hi verry great thank's , CnCJs is running...my issue was.............OS with 32bits....Now the right OS with 64bits is good and CnCJs is exciting... Phil

[@toddroles3234]

Did you use bullseye 64 bit for the OS?

[@lostbranchranch8646]

You do great explanations! I have installed gsender and cncjs on the same Pi4, both seem to work but I can't get the virtual view to work on gsender, I am happy using cncjs though, and would love to see you do a tutorial on cncjs.. PLEASE!...there really aren't any good cncjs tutorials out here in KZbin land.

[@escapingfromoz5643]

That is Sick ,cool stuff

[@D.E.Hammer]

Thank you.

[@muserbellamy1140]

Hi thanks for the info working ok now all the best mate

[@Dom-Bel]

Verry good many thanks

[@D.E.Hammer]

Thank You

[@dronesvisionsaeriennes]

Hello, in the end I was able to install CnCJs but I must be missing some options...I don't know what corresponds to... Port to use for CNCjs Web UI (default: 80 | 8000) and I can't launch it (shortcuts or icon for startup ???) Thank you for your video Philip

[@dronesvisionsaeriennes]

Good evening, DE Hammer, little problem for me who discovers the Pi 400... the update which blocks and sends me back to .... apt-secure (8 )... I did not find anything on the net to circumvent or force.. apt-get update and so I can't continue to install CnCJs which is currently running with an Arduino Mega 2560....otherwise the Pi 400 is really cool.... If you have a solution, thank you Philip

[@D.E.Hammer]

I am going to have to research that myself to see what is causing that.

[@dronesvisionsaeriennes]

Good evening, I couldn't install cnCJs on my Pi400, a big message appears at the end and "talks" about port 8000..I think it can't connect to the internet..but so I installed Win10 + CnCJs 1.9.27.. which opens, it tells me port com3 (of my Pi400), 115200 bauds but ONLY the Grbl line is displayed... not the parameters... I'm stuck there. Any idea of a solution for the 2 systems ?? Many thanks to you Phil

[@MarcJWebbMusic]

this video was great to follow, however now its installed, I have no idea how to run cncjs please could you advise as to how to run it once its installed

[@D.E.Hammer]

Once it is installed it should boot up after a bit into CNCJS. Once in CNCJS you will want to go to the Connection area on the left hand side, choose the port in the drop down and then click Open. If all connects the Console are should change and show you all your $# settings. This is where you can manually change your feed rate. The next steps can be in any order. Normally I first home my machine, and you do that in the Axes panel located in the top right of the program. Once you get your bit to where you want it, in the work position field press the third button (It is the one that looks like the symbol you see on online maps). Do that for all three axes. To import your file go to the Upload G-Code and find and select the file you want to carve/engrave. Once that has imported you can press the play button to start your carve. I hope this helps and this is just the bare bones of getting going with CNCJS.

[@dronesvisionsaeriennes]

Hello i get some issu with..... curl -sSL ${URL} | bash and message is....bash: line 1: 404::not found then its impossible to go in Introduction of cnCJs................ Maybe a solution ??? thank's a lot Phil

[@dronesvisionsaeriennes]

Good evening DE Hammer, great video...but it seems quite complicated to install CnCJs...I already have it on my PC under Windows 10 because I use it for my CnC...Is there a way easier to install it on the Raspberry? I want to replace my old PC with a Raspberry 4 or 400....so small and so amazing for our CNCs.....Thank you Phil

[@D.E.Hammer]

Evening Phil, thank you! So one could write a script to auto install a lot of this. I have not done so personally and find people are reluctant to take a script and use it, as they do not know exactly what the script writer has it doing. Personally I switched over to gsender for pi. Now gsender can have its own issues as well, but it is a fork of CNCJS. I normally keep my version of gsender a couple versions back from the current release for stability.

[@dronesvisionsaeriennes]

so when i follows your video i can get blue windows after ..........curl -sSL ${URL} | bash............ install and widgets for CnCJs but when i get the terminal again i get this message Detected OS is not compatable with this instal script ! so, i don't know how to do... Phil

[@makermelissa]

If you go to localhost on another computer, it will try to connect locally and load the web content from that other computer, which will most likely be an "error connection refused".

[@D.E.Hammer]

I am going to have to spend some more time working on my networking abilities. I just can not seem to get a grasp of it.

[@makermelissa]

@@D.E.Hammer Good job on the rest of the video though. 🙂

[@lsmunoz46123]

As long as you connect from a computer on the same network, you should be able to hit it by IP address (:8000)

[@makermelissa]

@@lsmunoz46123 Sure. That should work fine.

[@dronesvisionsaeriennes]

Hello DE Hammer, i come back to you...I follow your video to install CnCJs but mine is RPI400....not " 4B" ...but my first blue screen don't have " N°A06 line", so i get only A00, A01, A02, A03, A04, A05, A07 .......i press " Enter" then after the second blue screen " CnCJs Pendants and Widgets" i press "enter " .....then the title CNCjs appears on Xfce Terminal(black) but i get an error message...this one Detected OS is NOT compatable with this install script............ I've ot the same error message last year but today i don't remember how to resolve this issue ..... Maybe do you have an idea ?? Thank's a lot Phil

[@dronesvisionsaeriennes]

Well done DE Hammer, today i've resolved my issue...Full 64bits OS LAST version and CnCJs run very well...Very cool My cnc get bluetooth for running, colud you know how do to this with Rpi 400 ? Thank's a lot Phil

[@D.E.Hammer]

Hey there, sorry, I just saw your comment from yesterday, but see you got it going. I will have to look into the Bluetooth, as its been awhile.

[@dronesvisionsaeriennes]

Hi DeHammer, last precisions....due to CnCJs inoperative under Pi400 i've installed CnCJs under Pi400 + Win10 ...now CnCJs run ( V1.9.27 ) but its speed is very low, the display of displacements is made by jerks... How to remedy it or to be able to make it turn simply under Pi400 (WITHOUT Win10)? bCnC or gSender work well under Pi400 but the possibility of the 4th axis does not appear in the display despite the Grbl 1.1e which manages it... is there a solution ?? Thanks Phil

[@dronesvisionsaeriennes]

Hello, i come back to you because i've already loaded CnCJs on my RPI4, all run 6 moths ago but after many weeks with no time for may CnC i don't remember how to run it under RPi4 ...Which sentence do i have to write ?.......for example....run CnCjs...doesn't match................do you get a solution ? Thank's a lot Phil

[@D.E.Hammer]

Try using the gui and go to the web browser and type in: localhost:8000

[@LVA_DESIGN_LAMPS]

Nice video👌🏼

[@D.E.Hammer]

Thank You!

[@truthcam1]

Thanks...great idea - my next build ?

[@D.E.Hammer]

Your welcome. If CNCjs is not your cup of tea there is also BCNC & UGS that you can try.

[@lindsay5985]

What stepper drivers and controller board are you using? Thanks

[@D.E.Hammer]

I am using the longmills original controller with nema 23 motors

[@lindsay5985]

@@D.E.Hammer thanks! Do you know if it’s powered by GRBL?

[@lindsay5985]

@@D.E.Hammer Google seems to suggest it’d be GRBL.

[@D.E.Hammer]

@lindsay5985 yes

[@D.E.Hammer]

@lindsay5985 they have their new board coming out and it will be grblhal.

[@TheDanyBelanger]

Thank you for sharing your knowledge. This is a great video and I will certainly look at your Chanel. I have an old Pi 3B + I once used for octoprint. Do you think it would work with cncjs? Merci beaucoup :)

[@D.E.Hammer]

Your welcome and thanks for watching. I believe it should work, but as all things pi related issues can pop up between updates. I know there are issues with smaller screens, than the one I use in getting it to display correctly.

[@TheDanyBelanger]

@@D.E.Hammer Ok Thanks. I will try to find the time to give it a try next weekend. I will let you know how it went.

[@lsmunoz46123]

Hi, great video and writeup. I am having an issue though in that everything looks OK, but CNCJS kiosk never loads. I am using Pi 3 B with the 7" touchscreen display using ribbon cable instead of USB/HDMI. It only loads to desktop and pops an info box about loading the kiosk, but never actually does. Any thoughts? I appreciate it.

[@D.E.Hammer]

I have talked to others who have had similar issues, but with gsender not scaling to the screen size on smaller displays under 12" & using pi3. I would first try plugging it in to a regular monitor and seeing if it still does not load. That will see if it's a screen issue. If that doesn't work, I would then try having it boot with out the gui. So sudo raspi-config and change boot option to CLI. Last I would try reinstalling the raspberrypi os, but this time install the legacy OS. Let me know how it goes.

[@lsmunoz46123]

@@D.E.Hammer Still no joy. Monitor and cli did not help. The autocheck did not allow reinstall using legacy OS. Thanks for trying.

[@lsmunoz46123]

@DE Hammer Just an update. I broke down and installed it on a Pi4 that I had and it worked like a charm. Guessing something in there did not appreciate the Pi3B+. Thanks for the video and help.

[@D.E.Hammer]

Glad you got it working! Sorry I could not help on the Pi3. I have mine dug out to mess around with and see if I can get it to work.

[@CorinaStMartinArt]

This is great! Is this what you still recommend in Sept. ‘22?

[@D.E.Hammer]

So I dropped my touch screen and it's dead so I went with a little larger none touch screen and it was way cheaper. I now use gsender which is a fork by sienci labs of cncjs. I am staying 1 version behind on gsender as the kinks get worked out on the new releases. Right now I'm using gsender 1.0.6 the issue with both in my opinion is on large gcode files is that they can lag or become unresponive. So for a 6 hour engrave i would break it up into approx 6 gcode files. Besides that both get the job done, in my personal opinion gsender has the better gui and they have worked to make changing your grbl settings easier.

[@thijstriemstra]

⁠unfortunately it looks like gsender doesn’t support marlin

[@HarderThanCalculus]

thanks for the video. Just got a pi, and am looking for a control program that won't bog down during a large run like GCode Sender does. CNCJS might be what I need...except one small thing. Following along with your vid, everything is fun up until the curl statement, at which time it does nothing! It doesn't bring up the screen you show, so I can't do any of the operations you list following the curl statement. Do you have any ideas as to what I might be leaving out? HELP!!!

[@D.E.Hammer]

Just want to make sure, are you getting the screen that has the OK? Or are you not getting a screen after you press OK? If not getting a screen after you press ok. Restart the terminal, put in the URL, then do the bash line. BEFORE you press OK, scale the terminal larger or full screen it. If you are not getting to the screen with OK on it. Is it just sitting there, does it blank out?

[@HarderThanCalculus]

@@D.E.Hammer it just goes back to the prompt...does not display "ok", just the prompt

[@D.E.Hammer]

Have you tried the second method download it then install: URL="raw.githubusercontent.com/cncjs/cncjs-pi-raspbian/master/cncjs_install.sh" wget -O cncjs_install.sh "${URL}" cat --number cncjs_install.sh sudo bash cncjs_install.sh

[@HarderThanCalculus]

@@D.E.Hammer no...but this I will do next...thank you for the help, whether it works or not :)

[@HarderThanCalculus]

I am thinking that maybe I have the wrong OS. I have been hearing that the newest Raspberry OS is somewhat different than the slightly older versions, and to be compatible I might need to install Legacy instead...so, gonna try that.

[@rkvenom7699]

hello, how do you lower the brightness of the touch screen oficial? raspberry pi

[@D.E.Hammer]

On mine I adjust brightness from the screen itself. This is not an official Raspberry Pi screen, just one I got off of amazon.

[@rkvenom7699]

@@D.E.Hammer tnx bro.

[@carloscastellanosgonzalez8252]

thank you so much for this, i have been search this information for a long time

[@D.E.Hammer]

Your welcome, thanks for checking it out.

[@muserbellamy1140]

Hi I have installed everything and got to the blue screen with options and can only see half of it so can’t select anything tried screen resolution resize full pc monitor but still only half of tab everything else is full screen please help thankyou

[@D.E.Hammer]

I believe you are referring to the part where you do the install CNCJS and you have to expand the screen manually before you press ok. Had this happen to someone else as well. You just need to close out that terminal, open a new one. Type in the URL, the type in the bash line. Then adjust the window for the terminal to full screen. I think that should do it, let me know if that does not work.

[@arbjful]

Could we use Grbl instead on raspian?

[@D.E.Hammer]

I am not aware of a grbl os, so I would say you would need Raspberry pi os (raspian's new name) or any os that will run a grbl sender.

[@dronesvisionsaeriennes]

Hi, this evening i've tried to reinstall cncjs following " Installation guide " from the net....another issue at the end, terminal Pi400 doesn't accept...................npm value then unsafe perm sudo npm install npm@latest -g .......then ....... sudo npm install -g cncjs@latest --unsafe-perm sorry another issue......... phil

[@D.E.Hammer]

Ok let's see if they are installed and check what architect your pi is nodejs - v node - v uname -m

[@D.E.Hammer]

You may need to Uninstall both and reinstall. Sudo apt remove node Sudo apt remove nodejs Then try sudo apt install nodejs

[@ChrisSmith-um9ki]

Awesome! Is this an all in one solution? Does this work independently, that is without a microcontroller running grbl and a cnc motor control board?

[@D.E.Hammer]

No, I connect it to my longmill controller or to my 3018s controller.

[@ChrisSmith-um9ki]

@@D.E.Hammer do you know of a set up where the only device is a raspberry pi or pico running the cnc? thanks!

[@D.E.Hammer]

Not that I know of. I still think that the stepper motor shield uses an arduino to interpret the gcode. Have not looked into this in great detail.

[@jurijblazin7835]

I installed CNCJS to Pi3. It is very unresponsive. Do you think this is due to lack of CPU/GPU resources or something is wrong with the versions installed?. Tnx

[@D.E.Hammer]

It could be the new os, have seen others have a variety of issues on pi3 an older with it. So first thing you can try is flashing the legacy os and see if that clears it up.

[@charlesprest1247]

Will this program work on a Raspberry 3B or 3+?

[@D.E.Hammer]

It's been hit and miss with the pi 3. A few have gotten it to work, others have not.

[@carmswoodworking5311]

Great video, i also use a Pi 4 for my Longmill. i just don't have a touch screen, just a regular screen and mouse. I use the web interface of the pi from other computers to load content. The fan on my pi was getting so loud i had to disconnect it. The odd time on longer cuts i get a temperature warning on the pi and need to put a fan to it to get air moving, not sure if you have had that experience. I think I'm gonna do a clean install soon.

[@D.E.Hammer]

Thank You. My Pi came with a fan, and it has been cold here lately, so have not had any issue with temperatures on mine. Will be interesting to see when the Texas Summer gets here and how it handles the heat.

[@risbill1]

Nice! Wondering if I can make this work with my diode laser. Also is that LCARS file available somewhere?

[@D.E.Hammer]

Thanks, no I have not put the LCARS file up, but will let everyone know when I do.

[@risbill1]

@@D.E.Hammer sweet!

[@bentebrunsvelt319]

Verry good but to fast Greats from Holland YES I WANT MORE👍👍👍😃

[@D.E.Hammer]

Thank you. I am still trying to balance the speed out. Sometimes to fast, sometimes to slow. Need to find that good balance.

[@LVA_DESIGN_LAMPS]

HEEUUU NEDERLAND

[@LVA_DESIGN_LAMPS]

Yes more videos, his video's are so useful

[@dronesvisionsaeriennes]

Sorry, from " Installation guide " (on the net)....same issue at the end, terminal Pi400 doesn't accept...................npm value then unsafe perm sudo npm install npm@latest -g .......then ....... sudo npm install -g cncjs@latest --unsafe-perm despite removed ..........node, nodejs then réinstalled...........sudo apt install nodejs i'll try again with yours for the end with .................curl -sSL.... Phil

[@villageidiot8718]

Thanks for this video. I am really not Linux compatible. As soon as you get to apt-get your f'ing wizard's hat, I'm lost and need someone to tell me exactly what to enter. I'll try this tomorrow.

[@LeadDennis]

How did it work out? Don't forget to sudo apt-get wizardhat

[@villageidiot8718]

@@LeadDennis Must confess I didn't get around to it the next day like I thought I would. Something shiny... Then got news I could move to a place where I would have space for more and bigger toys. Been packing and moving for the past four months. Now to unpack and find things and order the Longmill Mk2 48x30 🤩

[@LeadDennis]

@@villageidiot8718 nice best of luck to you.

[@TechDesignWorks]

thanks for the video. It was very detailed and informative. I saw a video on OneFinity (a competitor to Longmill) where they used a game controller to move around the router. Can one of those be incorporated into your build or are there not enough USB slots? thanks

[@D.E.Hammer]

You can always add a usb hub to add some more connections. If you do not need a keyboard or you are sending the files to the pi remotely then that should free up a space. I have not tried a game controller, but have also seen people use them. Think I know what I should look into.