Try two months of Skillshare for free! skl.sh/marcoreps5 Banggood Ball Screw: www.banggood.com/custlink/mDv... TinyFPGA BX: bit.ly/tiny-fpga-box Tests with this servo: www.welectron.com/JMC-iHSV57-... Patreon: / marcoreps
Пікірлер: 566
@Made2hack5 жыл бұрын
You should always use a granite surface plate desk, even in the kitchen! I sleep on a granite surface plate to make sure I get the most precise dreams ever, to within 3 microns.
@reps5 жыл бұрын
< Insert Rick & Morty True Level Scene here >
@DeDeNoM5 жыл бұрын
It also straightens out the back
@brainfornothing5 жыл бұрын
@@DeDeNoM ...Or make a "C" with your column, if you sleep over your side. Cheers !
@bill605able5 жыл бұрын
@@DeDeNoM Raises hell with the "roids" tho!
@subzeronitro46865 жыл бұрын
@@reps EVERYTHING IS CROOKED! REALITY IS POISON! *LAMBS TO THE COSMIC SLAUGHTER*! I've seen that scene at least 5 times this week because it keeps popping up in KZbin for me.
@jayjaytronics83584 жыл бұрын
Hey Marco, the Steinmeyer ball screws are induction hardened as well (only the threads up to a few mm depth into the material). They also start as rolled part but then they get precision ground to fit to the pitch within tolerance (as low as a few µm). Of course the abrasive grinding will heat up the thread but they balance the cutting depth to control the soft-annealing. So no worries - they will hold up fine.
@cajone75915 жыл бұрын
That's going to be one hell of a PCB etcher
@nothanks77525 жыл бұрын
the worlds most expensive dickbutt plotter
@you_just4 жыл бұрын
Can’t wait to see the 1:100000 scale city that he etches.
@krackpack15 жыл бұрын
I just love how you worked that ad right in there. Smooth as butter i didn’t see it coming and then BAMM like a freight train.
@danaolson28714 жыл бұрын
Thank you so much. You saved me a lot of time. Going to replace my end bearings and get that Tiny FPGA kit now! Excellent.
@vasyapupken5 жыл бұрын
bearing blocks on linear rails must have a certain amount of preload to give you accuracy and rigidity under load. that's why a new linear blocks don't slide freely and have some amount of friction. (and that used rails from industrial machines slides freely just because they are WORN OUT and lost their preload. that's why they was removed and replaced with new ones)
@reps5 жыл бұрын
Sounds all correct! The banggood ones however have an uneven friction and seem to get caught on some high spots. And since hobby stuff is the only area where you would consider used rails anyway I think even the most worn-out ones will be easily good enough? Maybe I can find a way to actually measure my worn-out Rexroths ...
@mariusb60355 жыл бұрын
@@reps I've recently bought some used miniature Bosch rexroth linear guides (size 15, 4 bearings, 2x330mm rails) from ebay, alongside 500 steel bearing balls. Had to replace the old balls and even replaced the new ones multiple times until I found a "good batch" of those cheap balls that were running smoothly with slight preload. All in all this costs me 120€ compared to new ones from Bosch for over 500€
@michaelkelly31585 жыл бұрын
@@mariusb6035 How do these Bosch rails compare to Hiwin rails? Only ever heard of Hiwin rails being used in high end CNC applications.
@mariusb60355 жыл бұрын
@@michaelkelly3158 the original Bosch rails are very similar to hiwin rails. You'd have to compare lifetime, friction or other technical properties in a specific use case. Just saying "these are better" is impossible. As long as you get new brand name rails (hiwin, Bosch, SKF, Schneeberger,...) you should be good to go for any hobby project.
@jubjuber15 жыл бұрын
I have some cheap Chinese linear rails in a 20mm size. They run kind of rough but don't seem like it's specific high spots. Do you think taking them apart and cleaning would help smooth out the motion? I kind of suspect it's small particles in side the carriages are causing it to stick
@Chizu0155 жыл бұрын
Finally a new video! I'm so happy to see your CNC machine coming together😍 can't wait to see those beauty in action
@cocosloan37485 жыл бұрын
Marco we see so much stuff in your videos we cant find nowhere else..TY.
@Audio_Simon5 жыл бұрын
And cant afford haha!
@l3d-3dmaker585 жыл бұрын
YESSS! I freaking LOVE your videos!!!
@davidliddelow57045 жыл бұрын
When you go below 1um accuracy you start getting weird effects like the heat from your body causing thermal expansion.
@operator80145 жыл бұрын
I want to see someone use laser interferometry to measure the position to kick off the next generation of hyper accurate making.
@CNCGuy5 жыл бұрын
@@operator8014 Your in luck I happen to be in charge of the cnc department of Infinity Drain. We have brand new AMS Loader from Amada paired to our 4kw Laser. The Loader uses just that to tell where the pallet traverser is and to also measure sheet material thickness.
@brianjensen52005 жыл бұрын
@@operator8014 already done. We use those at my work. Picometer accuracy. It's a pain though, as in Australia this accuracy encoder systems requires defence approval. We had one system fail, and I had to arrange approval from ministry of defence to be able to send it back to the manufacturer for repair.
@evildrome5 жыл бұрын
@@brianjensen5200 Does everything run in a temperature controlled oil bath? I saw a video from Mitutoyo and that's how they keep their master leadscrew at a fixed temperature when screw cutting.
@brianjensen52005 жыл бұрын
@@evildrome no our motion stages are in free air. We keep the technical hall under 1K temperature deviation and encoder feedback loop controls the rest
@Vidz00225 жыл бұрын
Thank you for the unfiltered sharing of information. It is quite refreshing.
@rickypotter31035 жыл бұрын
Finally, a new video!! I was getting really tired of watching reruns and can't seem to get my fix anywhere else! I just got my MK3 Extended last week and already started my collection of cheap Chinese knock-offs….I'm in too deep already and obsession/fascination with Micro Reps isn't going away..one video every couple months just won't suffice!
@matthyslaubscher81515 жыл бұрын
More, please sir! One of my favorite channels.
@CyborgPandaBaby3 жыл бұрын
I know it's been a while but at my job we have what is essentially a large pair of calipers to calibrate cinema cameras. In order to discover and correct for long distance accuracy we use the distance traveled and revolutions of the motor. It uses a belt and pulley along with a very nice absolute encoder. We note the error (difference) of where it ended up vs the target and use the encoder resolution as well as the revolutions of the pulley. So if the machine was 0.015" off we would use that distance multiplied by the ticks/mm of the encoder (a constant), divided by the number of revolutions made during the move. This would give us a long range error correction value that the machine can compensate with. Essentially the number of encoder ticks it should increase or decrease by with every revolution of the pulley. I believe a similar calibration technique could be used with a ball screw mechanism.
@avejst5 жыл бұрын
Nice to hear from you again Thanks for sharing👍😀
@sansdecorum46004 жыл бұрын
Excellent breakdown and explanation with valuable tips and tricks for the aspiring CNC machine builder. Thank you. Subscribed.
@Iceteavanill5 жыл бұрын
Nice to see some SMC stuff in the video. I have never used anything from them other than pneumatics but i got a tour around one factorie and they do make very high quality stuff....
@gregfeneis6094 жыл бұрын
6:04 When a ballscrew shaft is ground, the metal can already be very hard prior to grinding and the resulting screw can be far superior than a ballscrew that gets some hardening in its roll forming process.
@lvxleather2 жыл бұрын
Your videos are awesome, I can't believe I hadn't discovered these sooner, bravo.
@maxk36735 жыл бұрын
Oh finally a new video. 😀
@ZeroMass5 жыл бұрын
Just found this channel... Been binge watching since : )
@Flornmonk2 жыл бұрын
I understand NOTHING but I can't stop watching.
@lazyh-online48395 жыл бұрын
I think it's important to note that the final hardening comes just before grinding (which happens after rolling in the case of rolled ball screws) and so the effect of surface hardening is minimal compared to the higher precision and therefore tolerances of purely ground ball screws.
@divyajnana5 жыл бұрын
As usual, a hilariously instructive video, thank you MUCH!
@LitchKB5 жыл бұрын
Good humour and technical knowledge. Subbed.
@brad26785 жыл бұрын
thank you for the lesson in angular contact bearings
@mattnsac5 жыл бұрын
Made with carbon metal not a trace of cabon wood LMAO
@scottjackson28125 жыл бұрын
Your videos are usually pretty funny, but that joke at the end about rails getting replaced preemptively in industrial settings was hilarious.
@adisharr5 жыл бұрын
Bigger companies do this all the time. Regular maintenance is important when your Nestle and bottling 10's of thousands of water bottles a day.
@MarksmenTM5 жыл бұрын
@@adisharr I am not sure if you have ever replaced a ball screw, but it doesn't sound like it.
@SystemsPlanet4 жыл бұрын
Can you please explain the inside baseball joke to the non players?
@panaxion4 жыл бұрын
@@SystemsPlanet Most industrial machines (outside Germany at least) get run to death, rarely get the love or greasing they should.
@siggyincr74474 жыл бұрын
Depends a lot on the application, but most companies will replace ball screws when it starts causing problems. If it's in a machine that NEEDS to run without a hitch, consumables will generally get replaced or at least checked for wear on a predetermined schedule. I used to work for a company that would always have a maintenance crew scheduled for holidays so they could do that sort of thing without creating excessive downtime.
@brainfornothing5 жыл бұрын
Always interesting ! In my experience, too much precision is useless, because, at the end, the total deflexion of the structure, leadscrews, the motor head, the tool, etc. is very significant, but, of course, "too much precision" is better than "meh!". I'm saving money for the parts of my next CNC router. Thanks for sharing !
@WhoIsTheEdman4 жыл бұрын
I'm really glad I'm subscribed to this channel. I feel like the humor here is within the same vein as This Old Tony.
@jon_raymond5 жыл бұрын
A new video from Mr Reps makes my day.
@1959Berre5 жыл бұрын
The lubrication sounds are very inspiring. Fruits & vegetables are good for you, Marco!
@nonyabidness44795 жыл бұрын
Holy Bleep. Awesome video!!! Awesome technical detail and heavy with the lols. Nightmare fuel lol.
@you_just4 жыл бұрын
3:10 when your hardware is so precise that your nut has bolts inside it
@circuitsandcigars12785 жыл бұрын
I used to work with these in laser trimmers and C02 lasers. The C02 had a 200 pound polished slab of granite that everything was mounted on
@mailamaila59183 жыл бұрын
Funny , ohh the humor , most excellent content. This is exactly the info I was looking for as I'm currently trying to repair a TL-1 Lathe : )
@4.0.45 жыл бұрын
That tiny FPGA thing... I didn't knew such a thing existed! That's the size of an Arduino nano!
@Greeninja135 жыл бұрын
To measure long distances you could attach levers to the encoder. It's the same technique that people used back in the day to convert large movements into small ones for precise machining. You'd be trading micrometer precision for mm or cm precision though.
@CaskStrength7775 жыл бұрын
I could listen to you say "steinmeyer ballscrews" over and over on repeat endlessly. I wish I had your voice, fantastic vid
@jenskapmeyer25792 жыл бұрын
That's how we Germans say it ... 😀
@MCsCreations5 жыл бұрын
Pretty amazing stuff, man! 😮
@YuureiInu5 жыл бұрын
Linear rails have different amount of preload and various combinations of seals that will affect how easy they slide.
@humanhiveanomaly5 жыл бұрын
Had no idea FPGAs could be so adorable. I need to dust off some micro-controller unworthy projects and exchange some financial details with Elektor.
@AttilaAsztalos4 жыл бұрын
Elektor: "only 0 left" Me: "oh great... fuck my life." My wallet: *quiet sigh of relief*
@rusticagenerica4 жыл бұрын
I can confirm that in 2025, FPGAs will go beying Kittens in the minds of serial-video-watchers.
@thaibinhphamdinh12995 жыл бұрын
Here in Vietnam we can get those linear rail and ball screw second hand for dirt cheap. They are often disassembled from old machines. Just got a pair of unused IKO LWA15 rails and NSK 1602 ball screw for like $40. $200 can get you a nice 400w servo with driver from Japanese brand like Yakaswa.
@fredio543 жыл бұрын
Came for the precision, subscribed for the humour! Nice and dry, just how I like it.
@thiscommentwasposted2624 жыл бұрын
Very good video! It made me feel dumb, but motivated me to learn this stuff!
@michael-gary-scott5 жыл бұрын
OMG this channel is awesome!! Subbed!
@johnjacobjinglehimerschmid35554 жыл бұрын
Another great vid. Subscribed!
@spicemasterii67754 жыл бұрын
German precision oozing out of this video. I had a German accent for an hour after watching this. Love this channel! Subscribed!
@bendito9994 жыл бұрын
Precision wood block table
@melgross3 жыл бұрын
Very good. I like your sense of humor too.
@marcdraco21893 жыл бұрын
Precision engineering with German precision dry humour. God I love this guy!
@torinstorkey4 жыл бұрын
I love the shot at 3:37 where you can see a die with all the traces allong it.
@MostlyPennyCat3 жыл бұрын
The qualifying test for becoming a marine artificer in the royal navy in the 1970s was to build a miniature metal lathe. By hand from scratch, to a maximum accuracy of so many thou. Apparently creating those jack screws and whatever they made to run along it is tricky.
@ForensicCats5 жыл бұрын
Beautiful, thanks for sharing.
@SYLTHECRU5 жыл бұрын
Love your commentary!
@Mavi2225 жыл бұрын
I was just pooping and was searching for some video to watch on the meantime.. And then I saw that you uploaded a new video! That was the best poop I had this year, thank you!
@reps5 жыл бұрын
Good to know!
@cfeigel5 жыл бұрын
Er . . . too much to know.
@fibranijevidra5 жыл бұрын
Technical, and pretty funny. I love your style and hard German accent.
@evans57562 жыл бұрын
You are such a knowledgeable and funny guy.
@GGG9655 жыл бұрын
Beautiful video mate:)
@anthroponym5685 жыл бұрын
super valuable information, thank you
@TouYubeTom5 жыл бұрын
keep the good work up!
@stonecraft7455 жыл бұрын
My first video, instantly subcribed! Thanks!
@gizish5 жыл бұрын
Nice video! And thank you for the nice tips! But are you sure you're going to enjoy those microns with the rigidity of steel frames? Have you considered filling granite on the voids?
@nobytes25 жыл бұрын
One way I could think of measuring long distance movement, would be measuring rotation shaft movement vs fixed point via laser distance sensor.
@PabloMuerteUno5 жыл бұрын
Informative and entertaining. Many thanks
@MichaelAaronBerger5 жыл бұрын
I love your videos dude.
@ridermak41114 жыл бұрын
I have never learned so much while laughing so hard. Precision comedy dude. 🧐😂
@youthised584 жыл бұрын
Great video!
@JT-ee1ii3 жыл бұрын
Informative and hilarious!
@erwinz592611 ай бұрын
best video ever. inspired me to study engineering and will build a machine.
@giannebaron61395 жыл бұрын
Yesss another upload
@teamidris4 жыл бұрын
Yep, turning the nut is tricky. It takes a while turning it back and forth to be ‘happy’ again. For a while it was trying to force out the plastic seal. At one end the plastic seal is held in by two tiny grub screws.
@henrychan7205 жыл бұрын
A simple laser interferometer can be used to measure accuracy over long distances. All you have to do is to program maybe an arduino to count how many times the interference pattern cycles. The accuracy may not be great because you can't really properly calibrate it but it should be super precise, as long as you don't loose count.
@MasterNater8083 жыл бұрын
Any "Stuff Made Here" fam?
@creativeoutlet31483 жыл бұрын
Looking up what screw balls are? 😂 Same
@rexbenny15533 жыл бұрын
@@creativeoutlet3148 Ayyyy
@tristanwh94663 жыл бұрын
@@creativeoutlet3148 lol same
@molitovv3 жыл бұрын
No
@mcuadra64663 жыл бұрын
That's why I'm here lol
@hugoboyce96483 жыл бұрын
Whoa that SMC card motor is just so cool!
@wolf3o3rok5 жыл бұрын
Hello, it's my first comment here.. First of all love your channel...So I am writing aboute the "el chepo chinese linear rails" i've bought some more then a year ago.. Frustrated over the laggy performance, etc... Solution disassemble the carriage submerge in alcohol (to clean some wierd oils inside) reassemble, greas up... It worked for me... Still going strong after a year or so of modernet to heavy use..
@TTBOn00bKiLleR4 жыл бұрын
this is really informative
@lapidations5 жыл бұрын
Oh, it seems I got lost in the CNC KZbin rabbit hole. That said, now THIS is some serious DIY CNC shit.
@joejane99775 жыл бұрын
this video after i watched made me feel screwed with. thanks for the fun times excellent video
@weerobot5 жыл бұрын
Awesome Work....!!
@akshaykumarvyas5 жыл бұрын
since you live in germany, you can get mineral castings for the cnc machine done from EPUCRETE or now called RAMPF.
@DudleyToolwright3 жыл бұрын
Very informative. Thanks.
@KeithOlson Жыл бұрын
May I once again express my appreciation for your hydrophobic humour! :grin:
@namAehT5 жыл бұрын
FYI: You should look into Klipper if you are interested in interfacing a regular threaded OS with a realtime OS. Klipper is a 3d printer software that does all the heavy lifting on a computer (usually a Pi) and then uses one or more microcontrollers to schedule and execute commands.
@reps5 жыл бұрын
Yeah, cool project. I think Cetus is also based on that principle
@namAehT5 жыл бұрын
@@reps I honestly think it's the way forward for 3d printing as opposed to using STM32 based boards with webUI addons like the Duet. Plus it can be infinitely scalable. Want to have two Y-axis gauntries with two X-axis carriages with two independent extruders each? Slap a few cheap reprap boards together and hook them up to a Pi and install Klipper on everything.
@y2ksw15 жыл бұрын
Those forbidden dreams of precision 😄
@sv3glx5 жыл бұрын
At last sir... A New Video!
@o0julek0o5 жыл бұрын
Hahahahahhaah, "avoid things like this" I'm hecking crying 😂😂😂😂😂😂
@crosby31084 жыл бұрын
Your hilarious great job I learned allot
@HalleyRai4 жыл бұрын
thank you youtube rabbit hole...found this amazing channel
@milithemuffin45345 жыл бұрын
That's some quality hardware! I'm only worried a bit about this Z axis, it looks going to be 2-3 times longer than spacing between rails, this will amplify load on the rails, and then amplify deflection at the tip of an end mill even more. I might be overthinking it but i'd be tempted to make something like Okuma double column machining center.
@reps5 жыл бұрын
Valid point!
@forbiddenera5 жыл бұрын
That tiny fpga looks f*n cool !
@HH-xf9il5 жыл бұрын
For the love of god I hope you've picked up Fusion by now :) Cool videos, keep it up !
@MrJme31924 жыл бұрын
Looking for my first cnc machine. What will you suggest to look for when selecting a complete out of the kit cnc machine? BTW, love your video very informative.
@charlieabbot36494 жыл бұрын
Only you could make ball bearings and vertical axis travel sound humorous. Nicely done.
@halasimov13623 жыл бұрын
You are an asset to humanity.. and futue A.I overloards alike!
@cosmoalien123453 жыл бұрын
1.07 luckily you didn't fall on the staircase behind ... hahaha
@AndrewTSq2 жыл бұрын
4:10 made me laugh :D very interesting videos you have. I get lots of inspiration!
@opendstudio71415 жыл бұрын
You need to give your narrator a raise in wages. What a great voice.
@OB1canblowme4 жыл бұрын
Those German ball screws are most likely hardened before grinding. And presumably they are tuned to a spot on concentricity and then get ground instead of work hardened since the torsional energy exerted into the blank is low with grinding and that way you eliminate a variable that could cause distortion. Or maybe it's space dust, I'm just shooting from the hip tbh
@DrakkarCalethiel5 жыл бұрын
Excellent video about a thing that gets ignored quite often.
@mertcapkin72635 жыл бұрын
Very nice video! Where do you find all of those second hand linear rails etc.?
@chrizlax5 жыл бұрын
What's the amount of the slow drift? Steel has a coefficient of linear expansion of ~10-12 microns/meter/degrees c, so temperature expansion vs the desk should certainly shown up on your micron scale.
@TomFYouTube2 жыл бұрын
I am also German but have been living in the US for over 40yrs. I am looking to build a reasonably priced desktop machine to route/mill parts for my hobby. Why is it that I am also obsessed with precision and worry about thermal expansion of materials? I guess it’s in my genes? 🤪