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 To me, every robot is a moving mechanical art form, a sculpture made of aluminum, motors and gears, and I think that soon we will be seeing those art forms involved in some of the most fantastic robotic "dances" that any of us have ever seen - DougHogg [more] |
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We've been finding the WCP cams super helpful this year, especially in non-drivetrain places. We're using them for stuff like tensioning the chain runs powering our roller claw, tensioning our claw tilt chain, and of course in the drivetrain.
I put together this simple plate assembly to give people an idea of how to do a real clean VersaPlanetary mount that included some WCP Cam tabs. This way, when you have a VersaPlanetary driving something via chain or belt, you can tension those runs with a cam and no longer have to worry about the chain or belt coming untensioned, ever! The plate can be manufactured by any 3d or 2d manufacturing process (milling, waterjet, laser cut, even 3d printing), as long as you're OK with adding some countersinks in the bottom with a hand drill.
The current model is made out of .090 aluminium, has mounting holes for a 1 and 2 stage VersaPlanetary, and slots to use with #10 screws. I'll post the CAD model if people are interested.
Discussion
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30-01-2014 17:46
Nuttyman54
Re: pic: VersaPlanetary Plate with Cams
This is a pretty slick little setup. I'm curious as to why you need two cams though, shouldn't you only need one to react against the chain load?
If you just have two shown to demonstrate you can put them on either side, ignore my question.
30-01-2014 18:13
Chris is me
Re: pic: VersaPlanetary Plate with Cams
I could be wrong, but wouldn't a tight bolted connection hold the gearbox in place just fine? Teams slot gearboxes all the time without needing cams to retain them. I could be missing something though.
30-01-2014 18:22
R.C.
Re: pic: VersaPlanetary Plate with Cams
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Originally Posted by Chris is me
I could be wrong, but wouldn't a tight bolted connection hold the gearbox in place just fine? Teams slot gearboxes all the time without needing cams to retain them. I could be missing something though.
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30-01-2014 21:49
DampRobot
Re: pic: VersaPlanetary Plate with Cams
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Originally Posted by R.C.
That would be dependent on load/setup, I've seen multiple setups work and multiple fail.
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And, yeah, it's just to show that there are two places to put a cam.
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