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fixed chain/belt setup (not a loop)
david_lang457
Member Posts: 87 ✭✭✭
I am trying to model a couple different setups where the belt/chain is not a loop (so the belt featurescript doesn't work)
one example is a belt/chain anchored on both ends that has a motor on a mobile item in between (cheap laser cutters do this with belts, but the same thing happens with automatic gates)
the other example is a corexy ( https://corexy.com/theory.html ) that is used on high speed 3d printers. The belts are anchored at the carriage in the center at both ends.
Also, with the belt featurescript, I can do a design-in-context from my assembly, but then when the assembly changes (configuration changes), the belts created do not get changed to match
there is a sample of this at https://cad.onshape.com/documents/af00bd1e0c2361197d31a0e4/w/6b41b669b7a601ad14ae5141/e/43ac694c0ba9a79e9cbc6d2f (see the two sample tabs at the end)
while I can model it manually, it would be fantastic to be able to define a belt that remained paired with the pulleys as the assembled parts move (the yellow part can slide on the rail in the example above
I could do this by doing everything in a parts studio, but that gets a bit ugly as I have to have lots of duplicate parts, can't insert standard hardware, get a good BoM, etc
one example is a belt/chain anchored on both ends that has a motor on a mobile item in between (cheap laser cutters do this with belts, but the same thing happens with automatic gates)
the other example is a corexy ( https://corexy.com/theory.html ) that is used on high speed 3d printers. The belts are anchored at the carriage in the center at both ends.
Also, with the belt featurescript, I can do a design-in-context from my assembly, but then when the assembly changes (configuration changes), the belts created do not get changed to match
there is a sample of this at https://cad.onshape.com/documents/af00bd1e0c2361197d31a0e4/w/6b41b669b7a601ad14ae5141/e/43ac694c0ba9a79e9cbc6d2f (see the two sample tabs at the end)
while I can model it manually, it would be fantastic to be able to define a belt that remained paired with the pulleys as the assembled parts move (the yellow part can slide on the rail in the example above
I could do this by doing everything in a parts studio, but that gets a bit ugly as I have to have lots of duplicate parts, can't insert standard hardware, get a good BoM, etc
0
Comments
You could you add a position variable in the var studio that will adjust the loop position in the belt part studio and the assembly via a position mate using the same variable. This will not animate the assembly of course but let you check at al positions. In particular the extremes or any place there might be interference with other components.
If your looking at frame size changes, I think the same will apply via a calculation.
The total belt length will also be calculated as well.
Make sure to check the box in var studio that inserts into all part/assembly studios.