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s_forbes 09-02-2017 01:32

pic: 3D printed belt guides
 

avanboekel 09-02-2017 01:34

Re: pic: 3D printed belt guides
 
What is that blue roller material? We've had some issues with our polycarbonate tubes flexing from the polycord.

s_forbes 09-02-2017 02:02

Re: pic: 3D printed belt guides
 
It is a 6061 aluminum tube, 1.25" OD and 0.065" wall thickness. It's very stiff and lightweight, and it's just the right size to allow pressing a 1.125" OD bearing into the end. It is anodized blue from the manufacturer.

RoboChair 09-02-2017 02:45

Re: pic: 3D printed belt guides
 
You can also keep the belts tracking by taking an O-ring and electrical taping it in place to act as a crown to keep the belt where you want it.

Cory 09-02-2017 15:53

Re: pic: 3D printed belt guides
 
Quote:

Originally Posted by RoboChair (Post 1642376)
You can also keep the belts tracking by taking an O-ring and electrical taping it in place to act as a crown to keep the belt where you want it.

Or just actual tape, though our testing this year has shown that flat belting like this in the bottom of a hopper with a large mass of unconstrained balls on top of it very easily derails.

Brandon_L 09-02-2017 16:33

Re: pic: 3D printed belt guides
 
Quote:

Originally Posted by Cory (Post 1642649)
Or just actual tape, though our testing this year has shown that flat belting like this in the bottom of a hopper with a large mass of unconstrained balls on top of it very easily derails.

Second, just a couple wraps of electrical tape directly under where you want the belt to sit works perfectly

We haven't had issues with it, but apparently you have so I guess it depends on setup


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