Worm Gear

[=Martin=Taylor=]

Originally Posted by Gabe

Quite easily, as long as ou have the worm and a worm gear...

Ha! Or not... Getting the necessary accuracy and tolerances will be very difficult and I would not recommend barreling into this project before doing some serious research.

We made a worm-gear drive this year out of a piece of 1/8" thick boxed aluminum and a bronze spur and stainless worm from Applied Technologies. I would NOT suggest buying from McMaster Carr. McMaster only sells cast iron worms, which will turn to dust after a few matches.

If I were you I would spare myself the grief and buy a contained unit such as these:
-http://www.applied.com/apps/commerce/catalog/catalog.do?e=2&c=1960
-http://www.chiefdelphi.com/forums/showthread.php?p=566568#post566568
-http://bostongear.com/products/enclosed/wgsr.html

If you have the resources to machine a gearbox I'm sure you have the resources to cheese-hole one that’s already made

(You can see the gearbox on the side of the T. REX's arm)

[Gabe]

True, cast iron does wear very fast, so the next best thing is to get bronze worm gears and steel worms, both which you can get at SDP-SI
https://sdp-si.com/eStore/
They have both smaller nylon worm gears (perhaps too small), but larger bronze worm gears which I think would suit your application. If you do order from them, please order as soon as you can because our team has had some trouble with delayed shipping (in our case, gear stock).

[Calvin_1631]

sorry to bring back a kinda dead topic. But would it be considered legal to buy a worm gear box from Boston Gear.

[BRosser314]

Originally Posted by Calvin_1631

sorry to bring back a kinda dead topic. But would it be considered legal to buy a worm gear box from Boston Gear.

I dont believe it would be illleagal, I mean check the FIRST part flowchart in the Robot section of the manual. I believe the only probnlem you would have with the one you buy would be for weight and size constraints and also if your team is budgeted on there money.

[Al Skierkiewicz]

Calvin,
The gearboxes shown are mostly for fractional horsepower motors but if you find one that you could use... They are restricted by the single part cost and must be accounted for in your BOM and max robot cost accounting.