Do Linear Rails Perform Well Under Cantilever Loads?
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Interesting?
What size belts?
Where did you get that kind of stepper?
Part #?
Thanks much.
Frederick
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- Gt2 9mm width x 2. Dont know the exact length offhand
- Motor part # --> 17hs15-1684s-pg5
*Link to motor --> https://www.omc-stepperonline.com/nema-17-stepper-motor-bipolar-l38mm-w-gear-raio-51-planetary-gearbox-17hs15-1684s-pg5.html
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@Turbo said in Do Linear Rails Perform Well Under Cantilever Loads?:
- Gt2 9mm width x 2. Dont know the exact length offhand
- Motor part # --> 17hs15-1684s-pg5
*Link to motor --> https://www.omc-stepperonline.com/nema-17-stepper-motor-bipolar-l38mm-w-gear-raio-51-planetary-gearbox-17hs15-1684s-pg5.html
Thanks VERY much for that info.
I may have to try this as it is unlike any other approach I have used.
Frederick
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@Turbo said in Do Linear Rails Perform Well Under Cantilever Loads?:
@achrn @JoergS5 So what im getting from this is that so long as I'm off-putting the main load onto something else, and primarily using the rails just as an alignment factor, it's fine. Sound about right?
(I think you've already reached this conclusion, but...) From the 3D picture, and assuming the linear rails have replaced the four wheel carriage that's back central in that view, yes, I think that rail is actually carrying next to no loads in any direction - it's just stopping the platform swinging round on the belt. (Though it obviously doesn't swing free since the belt is restrained top and bottom). My initial understanding (assumption) was that you had the belt only on one side (i.e. as if the diagram shows the whole drive mechanism) - then there would have been a significant moment on the carriage.
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@Turbo said in Do Linear Rails Perform Well Under Cantilever Loads?:
@fcwilt two belts. One stepper, which is geared 5:1, and a large rod to sync them up.
Here's a section view of one side.
Hi,
I've decided to go ahead and try belts of my Z axis.
Do you have any link(s) to more images or 3D models of your printer that I could look at?
Thanks.
Frederick
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@fcwilt It's not my design, but this was the designers printer before he moved and gave it to me. He also gave me the CAD files, so if you PM me, I'm sure i can email or discord you the related files.
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