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Originally Posted by Ben Piecuch
Rapid Prototyping Content:
SLA machines run fairly quickly. I believe the units we used had a 1mm thickness interval, and each layer was done in a quick flash. However, I seem to recall that the cleanup of the part(s) was the most time consuming. The nylon is not very stable (due to temperature/light) so we always painted our models. That was after all the hand-sanding and detailing. Our turn-around time was a couple days.
Swerve Content:
Looks like a nice package. Is there only the single rotational bearing through the midline of the unit, or is it supported near the top as well? Also, are you making the swerve sprocket yourself, or is that an off the shelf part? Do you have an estimate cost for a full-up module? (I'd love to hear what it cost other teams to do a similar design.) I hope to see it in 2007!
BEN
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Right now there is only one rotational bearing in the design, however a few people have commented on the stability of that during a match so in gen2 there will be 2 bearings, one low and one high. the sprocket is off the shelf but requires serious reworking, its a 70 tooth #25 chain with a 3 inch square cut in the middle... As cost goes...hmm... I have no idea. Working the parts would be the most expensive (especially the sprocket) as everything else is a standard part. When I am done reworking the whole design, I will post it with the inventor files for all to use. My final goal is to make it 2-speed, with independent swerve per side.