For a long-lasting belt, you need to follow the manufacturer's back-bending limits, which usually call for larger diameter bearings.
@misan2006
3 жыл бұрын
I did the opposite, make the long flight of belt to engage with the static belt (so you have more teeth engaged)
@Scavage0001
3 жыл бұрын
Me too
@deanafranks
3 жыл бұрын
You have more belt length between the motor pulley and the rack this way though, so you will get mode stretch deflection under load. You could use small slots for the motor mount and adjust the motor while engaged in the rack to get the spacing perfect.
@bearleemadeit4718
3 ай бұрын
@@deanafranksat first I was confused, but after taking a moment to sip my tea and think. I agree. This setup is the better solution. Although some may argue that the forces pushing back on the gantry will stretch the entire belt regardless
@lezbriddon
3 жыл бұрын
if anyone copies this, flip it 180 so you have the longer section of belt in contact with the stationary belt, while its only in good contact at the two ends, the fact both belts are in full contact means the teeth are spaced correctly, if you use the motor side with a gap, the gap distance may be out by part of a tooth.
@Lewakaassemme
3 жыл бұрын
I did wonder about that design decision, too. However I do not really know if the spacing especially of the moving belt stays the same due to tension, if it happens that it elongates the whole thing is going to be overconstraint quite quickly. So it might make sense to keep it like this.
@Scavage0001
3 жыл бұрын
@@Lewakaassemme the Belt is not only Made my Rubber, last time i did a similar thing, i use a Rubber Belt even on the other side as a rack & pinion System
@lezbriddon
3 жыл бұрын
@@Lewakaassemme not a tension issue but a distance issue, it's like trying to make teeth around a circular cog, if the diameter is out by a tiny amount you get an uneven tooth. Kind of same with this.
@rbgohome
3 жыл бұрын
Two belts are not geometric designed to mate. When power transmission the two belts want to lift out of eachother; its why the two extra bearings keep them mating on extra points. Agree with the 180 flip but with same extra bearings.
@johnlocke9609
8 ай бұрын
@@rbgohome Exactly, should be maybe a whole linear surface in the middle or a whole bunch of bearings constantly pushing in.
@rbgohome
3 жыл бұрын
Never saw this type of setup. What a great idea! An improvement would be having a rack that exactly fits the timing belt. As it is now, extra wear points on the two belts teeth may be the result. In turn increased backlash may become the result in the mating drive belt and motor wheel.
@alfredanil
7 ай бұрын
Bell Everman servo loop track
@printerautomations
Ай бұрын
What can I use for nema 23 motor with nema 1.8 degree step? Is there any advice?
@WESTRONIC-COL
2 жыл бұрын
Has it worked fine, no problems?
@signzonepr
2 жыл бұрын
work fine 8 to 10 hours at day.
@ray-charc3131
3 жыл бұрын
In your driving mechanism, the belt is flipped ,that is the teeth are on the belt's lining fibre outside,it seems no good as they are not bounded by them。 In the long running, the tooth break fall easily。
@shawnlund
3 жыл бұрын
I guess I don’t understand why you would make a rack and pinion drive but make it weaker and less accurate?
@justtestingonce
3 жыл бұрын
Racks are expensive
@harviecz
3 жыл бұрын
also what is wrong with using proper belt gear directly :-)
@bluewanderer9903
3 жыл бұрын
How is it less accurate?
@567891100
3 жыл бұрын
@@bluewanderer9903 I dont think there is. With so many teeth engaged at the same time i would say there is zero backlash and no chance of slipping. I am building my secound cnc and going to be usinig this design with a 3d printed rack. Hopefully works ok, super cheap if it does.
@bluewanderer9903
3 жыл бұрын
@@567891100 I dont think it is less accurate. If I was building something I would use this too. What is the cost of it?
@TReischl1
3 жыл бұрын
Like this idea a lot! I am currently designing a very small machine and am going to use this idea. Though I will turn it over. In my case the rack belt will be the moving part with the motorized belt stationary (if that makes sense? LOL) In other words I am going to drive the rack. This will only be on the lower axis which is moving table. The opposing axis is a different story. And Z? Hmmmm.
@JavierCamacho
3 жыл бұрын
Hola Jose. Me gustaría comunicarme contigo. Soy de Levittown PR.
@signzonepr
3 жыл бұрын
787-328-7293. Artecpr.net
@jasonmoss4308
4 жыл бұрын
Is there an Issue with common Rack and Pinon drive ?? im guessing tooth engagement area ? pinion wearing ? Belt drive ..driving against Rack ? existing one .. ?? where why ..how questions . ?
@jonm189
4 жыл бұрын
I was wondering this, what's the point? I'm guessing to remove backlash?
@joesanders2037
4 жыл бұрын
I would say in low force machining, like wood cutting DIY CNC Routers, or maybe light cutting in aluminum, this would be a great replacement for ball threads or rack and pinion because it would compensate for misalignment of all of the major components. Also no lubrication would be required. Both are very big issues for DIY machines.
@LV2XPLR
4 жыл бұрын
It largely eliminates the concern of belt stretch in any length rail as it is locked to a belt that is glued to the rail. Depending on how well the belt teeth filled the gap between the teeth of the other belt, this would inherently be a very low backlash system. It's also likely less expensive than ball screws or rack and pinion.
@joesanders2037
4 жыл бұрын
This is one of the most inspired acts of genius, I have seen in a long time.
@shawnlund
3 жыл бұрын
How do?
@joesanders2037
3 жыл бұрын
@@shawnlund I've made improvements
@alexon2010
4 жыл бұрын
Sorry Friend so much question, if you are interested in sending email to me I send an image of my project ... How many teeth do you use?
@alexon2010
4 жыл бұрын
Which Belt model are you using 3M (step) or 5M (step) - Belt Width 15mm? or 20mm?
@scualo00
3 жыл бұрын
looks more like an RPP-8M/25, just need to confirm the length
@kmcnc4745
4 жыл бұрын
Wow, thats a great design, much cheaper than Rack and Pinion 👍 👍
@MC-xg9fv
4 жыл бұрын
But it does use a rack right? Or are these two belts?
@crappymachines7567
3 жыл бұрын
@@MC-xg9fv I think he used two belts
@oreos40
3 жыл бұрын
what is the advantage in the complication?
@imranfoodtech
3 жыл бұрын
Limitless lenght
@vinaybhat7670
3 жыл бұрын
@@imranfoodtech bt he has rack there🤔 so i think its better to go for Rack & Pinion
@imranfoodtech
3 жыл бұрын
@@vinaybhat7670 But it seems more economical feasible
@CatNolara
3 жыл бұрын
@@imranfoodtech you can get belts in any length you want, although you would lose rigidity with increasing length.
@LV2XPLR
4 жыл бұрын
Great idea!. Can you tell me what belt profile & width you used? How is it holding up in your sign shop? Thank you.
@signzonepr
4 жыл бұрын
Hi. belt is 5m x 20mm
@CatNolara
3 жыл бұрын
Have you tested how acurate this is? Also, I'm kinda skeptical about the stiffness of this drive solution. For machining plastic and wood this might be ok, but can you also machine metal properly with this?
@signzonepr
3 жыл бұрын
aluminum and sheet metal no problem
@mactec54
3 жыл бұрын
Nothing new about your build / drive I have be using a rack Belt drive for around 8 years and it was around before I used it, there was a patent on this design some years ago
@motionsick
3 жыл бұрын
I was using it before you
@mactec54
3 жыл бұрын
@@motionsick i first saw it more that 20 years ago the patents where from before that so not much out there that is new in this design
@cnc5447
2 ай бұрын
Thanks
@ElmeBoyHU
2 жыл бұрын
Hi! Nice job, I am just designing my first CNC milling machine, may I ask how you fix the belt drive unit to your gantry? Thanks!
@MarceloOssoCarvalho1610
Жыл бұрын
Can it run 300mm/s with this belt assembly? Great idea
@chrismolloy131
2 жыл бұрын
how has this system worked over time? How did you make it that the belt meshed properly with two sections in contact?
@adamfilip
4 жыл бұрын
How did you glue belt to extrusion?
@signzonepr
4 жыл бұрын
3m 77 heavy contact spray glue
@taciolps
3 жыл бұрын
Do you make the project available?
@serdaraytemiz9978
3 жыл бұрын
I had a similar idea about the rack but I plan on using belt pulley as the drive gear and not belts. My question was the glue. I guess it works :)
@ismailsinapli
3 жыл бұрын
Süper 👍🏿 bir buluş
@pucomponent
3 жыл бұрын
hi........ how much the maximum jogging feed rate ...this belt drive can perform
@signzonepr
3 жыл бұрын
1000 ipm
@deiviss22
3 жыл бұрын
Owesome idea!!what type and size eccentric nuts you using and on which pulleys closer to the centre or corner ones.thanks
@duncanwoods6712
2 жыл бұрын
great build ! what is the proper name for the rack that your belt meshes with and where would i buy them from ,thankyou
@alfredanil
7 ай бұрын
Bell Everman servo look track
@taciolps
3 жыл бұрын
Divulga mais informações em outros vídeos do sistema de tração correia com correia que usa em sua CNC.
@signzonepr
3 жыл бұрын
wait for the next video.. new build at similar drive
@imranfoodtech
3 жыл бұрын
Its awesome 👌👌👌
@erikcramer
3 жыл бұрын
How did you mount the teeth to the extrusion ?
@signzonepr
3 жыл бұрын
glued
@erikcramer
3 жыл бұрын
@@signzoneprOef thats a i cant fuck it up sollution :D
@WESTRONIC-COL
4 жыл бұрын
hello, is the belt htdm3 or htdm5 ?
@signzonepr
4 жыл бұрын
m5 x 20mm
4 жыл бұрын
Really love this design 😍 What does ensure teeth "fall" in the right place? Bearing/idlers position and relative distance? Thanks for sharing 👍🙏
@signzonepr
4 жыл бұрын
Thanks. In few months I share with all the results in the torture test. This machine work over 6 hours daily in my sign shop. Actually we cut plexiglass guard only.
@funnymyazz
4 жыл бұрын
yeap it has to be calculated with error and trial in modeling software like inventor.
@joesanders2037
4 жыл бұрын
@@funnymyazz if you rotate it 180 degrees ot would be easier to align. when I get a minute I'll make a drawing
@LV2XPLR
4 жыл бұрын
@@joesanders2037 I was thinking the same thing. If the straight flat face of the moving belt was against the stationary belt, the alignment of the teeth would be a non-issue. The one possibility of the current design: If there was backlash because of the belt teeth not fully filling the space in the other belt, you might be able to adjust it to allow each area of belt engagement to be pushed to opposite sides.
@manitascruzingridninivet5607
3 жыл бұрын
@@signzonepr I build a cnc router using gt2 10mm belt, but at 2000mm x minute it starts to bounce back and forward in a anoying way because the belt is not strong enough. I have been looking for another kind of timing belts since rack and pinion are more expenxive, and I came across the htd3m and htd5m with steel soul. Do you recomend to use one or ahother to reduce the problem I have? and is htd5m accurate enough to cut with precission? I like the drive you bulited, and I like it, coud you share a diagram? Thank you very much in advance.
@billysmether6237
Жыл бұрын
Very Nice!!! Been 2 years, how is it holding up?? Could you give update?
@HrDernacht
4 жыл бұрын
Sorry to say but i myself came up with this ~5years ago and even back then found out it was already patented by Bell Everman Engineering co. Nonetheless it will be interesting how long the belts will last in your setting as they are in principle suffering from beeing bent backwards. Seems like you have built yourself a nice litte machine there! 👍
@linksright3972
3 жыл бұрын
Bell-Everman does not have a patent on this design. The design already very old, see e.g. patents.google.com/patent/EP0193567B1 and patents.google.com/patent/US3824871
@alfredanil
3 жыл бұрын
linksright I think they have Trademarked this design, they call it Servo belt LoopTrack.
@toxaq
3 жыл бұрын
Patents don’t stop personal use. They stop unlicensed commercial sale.
@heavyweather
2 жыл бұрын
@@alfredanil here's no omega drive/servo belt loop. B/E got two long belts intermeshed and the belt is lifted in between for the drive pulley. That's a difference.
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