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View Full Version : pic: A closup view of our prototype worm-crab drive system.

AndyB
19-01-2008, 15:52
[cdm-description=photo]28618[/cdm-description]
elvin23
19-01-2008, 15:53
how does it work? i like the simple design
gurellia53
19-01-2008, 16:00
I remember last year you had some killer swerve drive. Is this basically the same thing?


how does it work? i like the simple design

I believe the keyang is connected to the cables which rotate the wheel modules.
CraigHickman
19-01-2008, 16:03
This is their 2007 bot. It works by a worm gear driving the wheels, with a cable-turning system. Quite the cool bot, I must say.
DonRotolo
19-01-2008, 16:20
Schweet!

I like how you use a worm drive to power the wheels from CIMs

Don
AndyB
19-01-2008, 16:27
Glad to see this get brought back up.

Each gearbox has a vertical CIM motor with a worm on the end. It turns a spur gear that is connected to the output axle that the wheel is mounted on. The whole gearbox sits in a UHMW block that we added grooves to for cables to run through.

The UHMW blocks sit on a 1/4" thick aluminum plate attached to the frame. Each of these blocks are tied together using cable that is wound around another UHMW pully that is connected to the window motor.

When the window motor turns, so do the gearboxes. Here are some links to more pictures of this drive.

http://www.chiefdelphi.com/media/photos/28616
http://www.chiefdelphi.com/media/photos/28615
http://www.chiefdelphi.com/media/photos/28499
http://www.chiefdelphi.com/media/photos/28498
http://www.chiefdelphi.com/media/photos/28612

This is last years drive keep in mind. Not this years.
Steve_Alaniz
20-01-2008, 00:02
I'm impressed! Very nice design! Kudos! Wish I had thought of this one!

Steve