Not reached the end yet but can surely say it's one of the very best CNC build series available ! And that anti-backlash double pinion gear box assembly is making me seriously reconsider my ballscrew choice... Thank you again, for all.
Thanks ! Well I think it all depends on the size.... I prefer ballscrew over R&P for lengths under 1 meter..
7 ปีที่แล้ว
RoboCNC Frees- & Graveerwerk I'm aiming at 1250x2550 or even 1850x3200 cut area... Which makes me wonder if 80x160 profile is enough for the bridge, all the more considering I'd go RnP with the V40 for this axis too ?!
Ya would defiantly go with the RP, have a look at the DamenCNC website, maybe they have e nice kit for you...
7 ปีที่แล้ว +1
RoboCNC Frees- & Graveerwerk after ending your X2 series, I actually spent the rest of my last week free time exploring their website and discovering their machine kit and RnP LSM modules/assemblies. Seem like they cross 2m with a 80x160mm profile... But compared to your spreadsheet, the sum of the 4 modules for X,Y and Z seem more expensive. Will get in touch with them this week to get a quote for a kit suiting my needs, we'll see... Anyway, hope this guys are grateful because you're making them just the best advertisement a business can hope for !
I don't think there's a lot of holes you can poke in this approach. It's solid, robust and simple. Which is exactly what you need in this case. And that's a very nice chunk of Aluminium. Fine engineering as in Fine China tableware. Can't wait until it's in the machine and rolling on that pinion. Thanks for sharing!
Hi Devjock, thank you for the great comment ! I cant wait to test the system :) lets hope we are right and that it is indeed the way to go... Thanks for following along !
That's a very neat unit. I like the setup for the backlash and it makes real sense. I was always going to use a double gear for my next 1Kw fiber laser build but never thought about the depth on the gears and the backlash before this. Thanks for enlightening me. Love your videos and the work you do. keep up the good work. :-)
Thanks for watching and your warm comment Richard ! It's always great to hear someone bennefits from the video's I make... ! Dont forget to share your fiber project with us when done !
That finish looks to me like it's been media or sandblasted.... you didn't really give us a close look so it's hard to say, but at a quick glance, that's what I saw. Nice work by the way. Cheers! - Jesse
Mooie Units.. ik heb het oorspronkelijke ontwerp gemaakt toen ik er werkte.. ik zie dat Kevin het ontwerp nog verder verbeterd heeft.. met name de tensioner is anders..
Oke cool dat wist ik niet eens Jan. Ja ik ben zeer benieuwd naar de prestatie.. Ik geloof in ieder geval in het concept. En de lange kogelomloop spindels geven nu een maal problemen, met als gevolg dat je alles rustiger aan gaat doen.
Thanks buddy ! Ja goedkoop is anders, maar dat was bij deze hele machine inderdaad niet het uitgangspunt. Het mooie is dat de machine zich zelf prima terug verdient....
Hi . Sorry, my english is not very good. I'am from Argentina. Congratulations for your machine and videos. Thank's for free share. I'am very ansiuos to buid RCNCX2 router for non commercial use. I will appreciate so much , if you can tell me when you plan to upload others parts of the project, like driver's , electronics, mounting X-Y motors etc., In other sense , what do you think about double ballscrew with two syncronized motors for X axis ?, Best regard's. César
For the upcoming stuff on this machine I ask to be patience and follow along in this TH-cam Series. As I said, a ballscrew (double for X) would be the best solution, up to 1 meter. Longer will result in problems.
Would the dual rack and pinion setup be worth doing with the "spring" type of setup that I already have. I have way too much backlash and I haven't figured out how to compensate. From your comment in the video you mentioned that there SHOULD be play between your pinions and the rack so my interpretation of this seems to be that if the spring has too much pressure against the rack this would have negative consequences? What would the consequence be? More backlash? I know this is an old post but whoever has an answer I'd be very grateful. Thanks for the video's, very helpful.
Only now see this comment.. sorry... A spring against the rack first of all results in friction wear. But it also rides on the dirt thats in there since it can not go away. Pressure should be on the side of the profile, not on the V. Also more backlash can be introduced with harder materials because this works against the spring tension. Anyway, it depends on what type of materials you cut and what forces you apply...
Heeyy Robo, Goed uitgelegd weer !! Super!! Even ter bevestiging: Wat is de afstand van het vlak waar het op de brug gemonteerd word tot aan het item profiel... of tot aan tandheugel aanzicht? Groet, Ralf
Hi Ralf, bedankt voor je positieve bericht.... Oei... je vraag is cryptisch :) I'll go on in English so everybody can read this; The Y-bridge side plates protruding 24mm outside the ITEM frame, so this RP system will have a distance of 24mm from the item profiles (except the pinions of course). The module 2 rack is 20mm wide and will be mounted on the item profile. So there is 4mm clearance between the RP unit and the rack. the two pinions protrude about 22mm from the RP unit, so they will clear the item frame by 2mm and therefor have a contact area on the rack of 18mm. Hope this makes it clear.... (?)
I just purchased three of these sets... My X Axis is going to be wide enough to hold a 4x8 sheet of ply, so I thought a R&P best. Would you suggest a Ball gear instead? It's right on the boundry of suggested width for a Ballscrew.
mooie video weer marcel! kleine "point of attention: van mijn kant.. Ik zie dat je het hele spul nu droog in elkaar gezet hebt, moet je alle assen en passingen niet van een klein drupje olie voorzien tegen het genoemde vliegroest in het begin van de video? en een beetje vet voor de "belt tentioner" ? ben zelf bang dat deze na verloop van tijd vast vreet door aluminium corrosie... gezien het spul niet geanodiseerd is ;-) keep up the good work! ;-)
Hi Robin, Hmm.... ja misschien had dat geen kwaad gekund. Aan de andere kant zitten er gelukkig weinig niet gelagerde bewegende delen. Ik ga er vanuit dat de lagers wel goed komen.. een druppeltje onder de spanner had misschien geen kwaad gekund. Bedankt voor het meedenken !
DO you think it would work for another application where I cannot have the chance to mount two of these? So in practice just one of this would be "fine" and also with a better type of gearbox which has backlash less than 4 arcmins like harmonic plenetary or such?
Yesy it is something like that.... If you do not tension it to hard I think it will be fine. It is not going to get to much force on it i think since it is only there to reduce the backlash of the RP. But time will tell...
Not in detail... but it seems a choice made by a lot of big machine manufacturers.... I do not have the knowledge on the specifics... but if you do, let me know 👍🏻
I don't sell anything, I provide all this info for guy like you who want to build there own. And I do so for free.... So you might consider to take the effort and listen to what I share and thank me afterwards instead...
The rule in mechanical devices is to keep it simple. You just took a system that had 1 possible place to have backlash (rack to pinion), and added a system that added 4 possible places to have/develop backlash! 1- worm to pinion, 2- gears to belt, 3- 8 bearings/fit to shafts. 3- new pinions to shafts (2), 4- manually set clearance of pins to rack. Really doesn't make ANY sense, except to SELL overly expensive parts, for no other reason than to put money in your, or someone else's pocket, with zero benefit to the end user. You know there IS such a thing a close tolerance/low backlash rack and pinions, or better yet helical rack, and pinion! For probably about the same, or less money as those contraptions.
Yes this is much more expensive then pulling the stepper in with a spring like a shopbot for example. Prices can be fount on the DamenCNC website. I will post a parts/price list of the complete machine on the RoboCNC website later on.
The author of the video is trying to convince us that by putting two gears we will get rid of backlash. This is all a myth. But he forgot to tell how to remove the backlash in the worm gear. Conclusions: Useless, bulky and stupid creation. Advertising and no more, do not fall for these tales.
Not reached the end yet but can surely say it's one of the very best CNC build series available !
And that anti-backlash double pinion gear box assembly is making me seriously reconsider my ballscrew choice... Thank you again, for all.
Thanks ! Well I think it all depends on the size.... I prefer ballscrew over R&P for lengths under 1 meter..
RoboCNC Frees- & Graveerwerk I'm aiming at 1250x2550 or even 1850x3200 cut area... Which makes me wonder if 80x160 profile is enough for the bridge, all the more considering I'd go RnP with the V40 for this axis too ?!
Ya would defiantly go with the RP, have a look at the DamenCNC website, maybe they have e nice kit for you...
RoboCNC Frees- & Graveerwerk after ending your X2 series, I actually spent the rest of my last week free time exploring their website and discovering their machine kit and RnP LSM modules/assemblies. Seem like they cross 2m with a 80x160mm profile... But compared to your spreadsheet, the sum of the 4 modules for X,Y and Z seem more expensive. Will get in touch with them this week to get a quote for a kit suiting my needs, we'll see... Anyway, hope this guys are grateful because you're making them just the best advertisement a business can hope for !
@ did you built it in the end ?
I don't think there's a lot of holes you can poke in this approach. It's solid, robust and simple. Which is exactly what you need in this case. And that's a very nice chunk of Aluminium. Fine engineering as in Fine China tableware.
Can't wait until it's in the machine and rolling on that pinion. Thanks for sharing!
Hi Devjock, thank you for the great comment ! I cant wait to test the system :) lets hope we are right and that it is indeed the way to go... Thanks for following along !
Wouldn't wanna miss is for the world :)
What else could I say? Keep on, your vids are awesome, and this wormgear assy too. Never heard of it until now.
Thanks.
Thanks ! very nice to hear some feedback :) Yes can't wait to test it indeed :)
That's a very neat unit. I like the setup for the backlash and it makes real sense. I was always going to use a double gear for my next 1Kw fiber laser build but never thought about the depth on the gears and the backlash before this. Thanks for enlightening me. Love your videos and the work you do. keep up the good work. :-)
Thanks for watching and your warm comment Richard ! It's always great to hear someone bennefits from the video's I make... ! Dont forget to share your fiber project with us when done !
These videos are such a treat! Please keep them coming! Excited to see the great progress my friend.
Thanks buddy ! It's the comments like these that make sure I'll keep making the videos :)
@@RoboCNCnl Where can I buy that zero backlash, link please. Thank You
@@RoboCNCnl Where can I buy that zero backlash, link please. Thank You
Very nice bit of kit Marcel!
Thanks David !
That finish looks to me like it's been media or sandblasted.... you didn't really give us a close look so it's hard to say, but at a quick glance, that's what I saw.
Nice work by the way.
Cheers!
- Jesse
Thanks Jesse !
Mooie Units.. ik heb het oorspronkelijke ontwerp gemaakt toen ik er werkte.. ik zie dat Kevin het ontwerp nog verder verbeterd heeft.. met name de tensioner is anders..
Oke cool dat wist ik niet eens Jan. Ja ik ben zeer benieuwd naar de prestatie.. Ik geloof in ieder geval in het concept. En de lange kogelomloop spindels geven nu een maal problemen, met als gevolg dat je alles rustiger aan gaat doen.
Weer een pracht video mooie uitleg lekker rustig (kost een paar centen maar dan heb je ook wat!!) next please!!!!
Thanks buddy ! Ja goedkoop is anders, maar dat was bij deze hele machine inderdaad niet het uitgangspunt.
Het mooie is dat de machine zich zelf prima terug verdient....
Hi . Sorry, my english is not very good.
I'am from Argentina.
Congratulations for your machine and videos. Thank's for free share.
I'am very ansiuos to buid RCNCX2 router for non commercial use.
I will appreciate so much , if you can tell me when you plan to upload others parts of the project, like driver's , electronics, mounting X-Y motors etc.,
In other sense , what do you think about double ballscrew with two syncronized motors for X axis ?,
Best regard's.
César
For the upcoming stuff on this machine I ask to be patience and follow along in this TH-cam Series.
As I said, a ballscrew (double for X) would be the best solution, up to 1 meter. Longer will result in problems.
Thanks Marcel!
nice video for concept of backlash Rack & Pinion- How can I get this module for Module5 18Teeth Pinion
I got these modules from DamenCNC.com, contact them for specific questions 👍🏻
Would the dual rack and pinion setup be worth doing with the "spring" type of setup that I already have. I have way too much backlash and I haven't figured out how to compensate. From your comment in the video you mentioned that there SHOULD be play between your pinions and the rack so my interpretation of this seems to be that if the spring has too much pressure against the rack this would have negative consequences? What would the consequence be? More backlash?
I know this is an old post but whoever has an answer I'd be very grateful.
Thanks for the video's, very helpful.
Only now see this comment.. sorry...
A spring against the rack first of all results in friction wear.
But it also rides on the dirt thats in there since it can not go away. Pressure should be on the side of the profile, not on the V. Also more backlash can be introduced with harder materials because this works against the spring tension. Anyway, it depends on what type of materials you cut and what forces you apply...
Weeral een knap filmpje!
Bedankt Kris ! Leuk dat je de bouw blijft volgen !
Iets zegt me dat ik nog eens opnieuw moet beginnen voor een degelijke!
Haha.... ja dat had ik dus ook een hele tijd :)
Heeyy Robo, Goed uitgelegd weer !! Super!! Even ter bevestiging: Wat is de afstand van het vlak waar het op de brug gemonteerd word tot aan het item profiel... of tot aan tandheugel aanzicht? Groet, Ralf
Hi Ralf, bedankt voor je positieve bericht....
Oei... je vraag is cryptisch :) I'll go on in English so everybody can read this;
The Y-bridge side plates protruding 24mm outside the ITEM frame, so this RP system will have a distance of 24mm from the item profiles (except the pinions of course). The module 2 rack is 20mm wide and will be mounted on the item profile. So there is 4mm clearance between the RP unit and the rack. the two pinions protrude about 22mm from the RP unit, so they will clear the item frame by 2mm and therefor have a contact area on the rack of 18mm.
Hope this makes it clear.... (?)
I just purchased three of these sets... My X Axis is going to be wide enough to hold a 4x8 sheet of ply, so I thought a R&P best. Would you suggest a Ball gear instead? It's right on the boundry of suggested width for a Ballscrew.
I think that's a wise idea.. long ballscrews will wobble and have a lot of inertia.
Or a rotating ballnut, which is very cool, but complex to make.
mooie video weer marcel! kleine "point of attention: van mijn kant.. Ik zie dat je het hele spul nu droog in elkaar gezet hebt, moet je alle assen en passingen niet van een klein drupje olie voorzien tegen het genoemde vliegroest in het begin van de video? en een beetje vet voor de "belt tentioner" ? ben zelf bang dat deze na verloop van tijd vast vreet door aluminium corrosie... gezien het spul niet geanodiseerd is ;-) keep up the good work! ;-)
Hi Robin,
Hmm.... ja misschien had dat geen kwaad gekund. Aan de andere kant zitten er gelukkig weinig niet gelagerde bewegende delen. Ik ga er vanuit dat de lagers wel goed komen.. een druppeltje onder de spanner had misschien geen kwaad gekund. Bedankt voor het meedenken !
hahah that's what I mean ;-) good work
DO you think it would work for another application where I cannot have the chance to mount two of these?
So in practice just one of this would be "fine" and also with a better type of gearbox which has backlash less than 4 arcmins like harmonic plenetary or such?
Yes that would be very much possible... Although i would advise to use 2 pinion gears to run in the rack...
Never heard of tolloks before. They don't have them in the McMaster-Carr catelog. Is that a brand name??
I am not certain, the came in the kit with the RP unit..
What is your opinion on helical rack and pinion as opposed to straight ones? I have seen machines with 3 helical pinion with a helical rack.
Depends on the quality, but helical is definitely much better if the quality is similar
nice vid m8
Thanks !!
Hi MarcelHow wide is the timing belt in this setup, worries me a little it only looks 10mm and is hidden inside the unit.cheers
Yesy it is something like that.... If you do not tension it to hard I think it will be fine. It is not going to get to much force on it i think since it is only there to reduce the backlash of the RP. But time will tell...
Did you consider using helical rack and pinion?
Not in detail... but it seems a choice made by a lot of big machine manufacturers.... I do not have the knowledge on the specifics... but if you do, let me know 👍🏻
thanks I'm planning to build one..... why you have used worm gears..... and not pulley system?
I have explained this in the previous videos...
right.... that is less sells for you... got it.
I don't sell anything, I provide all this info for guy like you who want to build there own. And I do so for free.... So you might consider to take the effort and listen to what I share and thank me afterwards instead...
RoboCNC Frees- & Graveerwerk Good morning, could you tell me where I can buy the 2 pinion module?
Yes of course.... But i won't... because all is told
Where did you get the kits from please, and how much for the units please
All vendors are mentioned in the videos
How soon will that timing belt between gears fail?
No Clue, contact DamenCNC
This is life-changing! Haha!
Lol... well it works well, and seems to hold up... But also more parts to fail in the end.. We'll see :)
Man I been binge watching all these videos. I need to make my next CNC like this. Would you be willing to send a parts list via direct message?!
If you watch all videos you will find the files ;)
I've yet to see a gear reducer that had zero backlash in and of itself... just saying
Thanks for sharing :)
Leuke video, leuk gemaakt.
Ga zeker zo door, en van mij komt er een duimpje en sub bij.
Top Davey ! Leuk om te horen, en bedankt voor het duimpje en de Sub natuurlijk :) (al doe ik de sub bedankjes op vrijdag nog eens over :P )
Graag gedaan man
The rule in mechanical devices is to keep it simple. You just took a system that had 1 possible place to have backlash (rack to pinion), and added a system that added 4 possible places to have/develop backlash! 1- worm to pinion, 2- gears to belt, 3- 8 bearings/fit to shafts. 3- new pinions to shafts (2), 4- manually set clearance of pins to rack. Really doesn't make ANY sense, except to SELL overly expensive parts, for no other reason than to put money in your, or someone else's pocket, with zero benefit to the end user. You know there IS such a thing a close tolerance/low backlash rack and pinions, or better yet helical rack, and pinion! For probably about the same, or less money as those contraptions.
Thanks for your amazing advice ;) good luck with your much better build !
How to order in india
Why not ask a shop? :)|
Looks expensive??
Yes this is much more expensive then pulling the stepper in with a spring like a shopbot for example.
Prices can be fount on the DamenCNC website. I will post a parts/price list of the complete machine on the RoboCNC website later on.
The author of the video is trying to convince us that by putting two gears we will get rid of backlash. This is all a myth. But he forgot to tell how to remove the backlash in the worm gear. Conclusions: Useless, bulky and stupid creation. Advertising and no more, do not fall for these tales.
Wow you got me :)