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Unread 06-18-2012, 03:53 PM
jakemochas jakemochas is offline
Programmer
FRC #1717 (The D'Penguineers)
Team Role: Student
 
Join Date: Jan 2012
Rookie Year: 2012
Location: United States
Posts: 22
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Re: 2012 FRC Team 1717 Uncut

Quote:
Originally Posted by Akash Rastogi View Post
Jake, what method were you using to cut your gears in house? Are they stacked plate gears?

Also, you said your team had 2 speed transmissions optimized for your swerve, what iterations did your transmissions go through in order to optimize for a swerve?

Thanks for all the great insight!

-Akash
Quote:
Originally Posted by R.C. View Post
I believe it was cut using the 4th axis (Tormach CNC?). They were definitely not stacked gears and were pocketed very nicely.

-RC
We cut our gears using a Tormaq CNC mill equipped with a 4th axis. The gears are cut using involute spur-gear cutters. Below is a McMaster-Carr link where you can order the type of gear cutters we use. I have also included a picture of a gear cutter below.

http://www.mcmaster.com/#gear-cutters/=i19i2u



We buy round stock and from that we make gear stock. I have included a sample picture of a piece of gear stock below.


In order to make the gear stock, we use the process shown in the video link posted below. In the video, however, they are making a single gear. We use this same process to make an entire piece of gear stock. After we make the gear stock, we part it off in a lathe to make the individual gears.

http://www.youtube.com/watch?v=sCuf6RqM7e0