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Unread 15-05-2015, 00:55
Joe G.'s Avatar
Joe G. Joe G. is online now
Taking a few years (mostly) off
AKA: Josepher
no team (Formerly 1687, 5400)
Team Role: Mentor
 
Join Date: Sep 2006
Rookie Year: 2007
Location: Worcester, MA
Posts: 1,451
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Re: pic: Manually machinable one-speed gearbox

Been running belt in a tube structure formed from sheet metal for the past three years with no issues. The sheet metal works great because we can start with a readily available belt/sprocket combo and size the tube accordingly, rather than the other way around. Access is achieved by opening up the entire side of the tube, which makes installation a lot easier than the through-the-end approach or small access pockets required by extrusion.

It is a fair bit larger than the texas tube approach, due to the increased sprocket diameter/width, and the need to add additional clearance for the rivets which hold the tube together, but it works well with our resources, and we like the insurance it provides.
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FIRST is not about doing what you can with what you know. It is about doing what you thought impossible, with what you were inspired to become.

2007-2010: Student, FRC 1687, Highlander Robotics
2012-2014: Technical Mentor, FRC 1687, Highlander Robotics
2015-2016: Lead Mentor, FRC 5400, Team WARP
2016-???: Volunteer and freelance mentor-for-hire

Last edited by Joe G. : 15-05-2015 at 01:57.
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