Go to Post Keep reading. - Billfred [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #13   Spotlight this post!  
Unread 03-08-2016, 23:15
s_forbes's Avatar
s_forbes s_forbes is offline
anonymous internet person
FRC #0842 (Falcon Robotics)
Team Role: Engineer
 
Join Date: Jan 2006
Rookie Year: 2006
Location: Phoenix, AZ
Posts: 1,125
s_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond repute
Re: Custom Gearboxes

Quote:
Originally Posted by Tcrump47 View Post
We have access to a waterjet for curtain and will probably gain access to a CNC mill (hoping). Thanks for all of the information.
All of our past gearboxes have been made with waterjetted aluminum plates. When using 1/8" thick material, we've just dimensioned the holes to match the bearing size and pressed the bearings in. When we used 1/4" material, the taper left by the waterjet was substantial enough that we had to ream out the bearing holes (we used this step drill bit, works for 0.875" and 1.125" bearing holes)

We also add .003" between meshing gears, as Max recommended. If you download some CAD models from AndyMark you'll see that they do the same. Works good!

This is a good standoff material, as there is a pre-existing hole that works with #10 machine screws. You can face off lengths in a lathe or milling machine and just run a long bolt through each standoff with a nut on the end. You could just use a solid bar and drill out a hole on your lathe, but if you are making long standoffs this gets to be pretty tedious.
Reply With Quote
 


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 17:12.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi