Quote:
Originally Posted by AdamHeard
The attached gear was pocketed on each side .112, leaving a web thickness of .150.
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Maybe leaving a little more meat by the gear teeth so you don't have a stress riser that can propagate to the thin web. We leave a 1/4" from the outside of the teeth to the OD of the undercut with about a 3/16" chamfer that cuts into the teeth slightly.
It looks like the broken gear has about 1/8" from the outside of the tooth to the undercut with about a 1/16" chamfer.
I also want Vex steel gears in 3/8" and 1/2" hex bores, 30 teeth and smaller.
We like to make the smaller gear steel and the larger gear aluminum. Aluminum on aluminum tends to wear out prematurely. Especially for the practice robot that gets much higher wear than the comp bot.
Quote:
Originally Posted by jwfoss
-4"x1.5" and 4"x2" Aluminum Wheels with 1/2" Hex Broach
-Anti-backdrive stage for VersaPlanetary
-Disc Brake set up with 1/2" Hex or "Standard" Sprocket Hole Pattern
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Anti-backdrive and a disc brake add-on for 1/2" hex stock would be a great addition.
Quote:
Originally Posted by mklinker
I would like to see a ratcheting gear and pawl. It would be nice if the ratcheting gear had a 1/2 inch hex broached bore.
Option B would be a ratcheting gear with the standard FIRST bolt circle to attach to a hub.
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Dido on the ratchet and pawl for a 1/2" hex bore. We modified McMaster ones for both our winch and climbing mechanism this year.