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Re: Swerve Gear Box
Bevel gears require extreme precision in three dimensions. Both the top and side must be precisely machined, and you must have some way to precisely locate the bevel gears on the shaft. Definitely a job for machine tools. As a mental exercise, picture the number of ways a bevel gear's alignment can be "off," versus spur gear alignment.
Selection of bevel gears is another hurdle. Choosing an appropriate pitch, pressure angle, size, etc. is critical for good performance. Again, I'll let those with experience with these things elaborate further.
And even if you get it all right, bevel gears still create a noticeable drop in efficiency when compared to spur gears. Another argument for the self-contained approach.
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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. : 08-27-2011 at 05:09 PM.
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Ironically, I think the best testament to the program [Dean Kamen] founded and his ideals wouldn't be if he won a Nobel Prize. It would be if you did. - Kevin Sevcik [more] 
08-27-2011, 05:07 PM
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