Posted by RonV on February 25, 2007 at 15:20:59:
In Reply to: Coventional Universal Toolmiling Mashine posted by Andreas on February 24, 2007 at 06:36:08:
Here are some links to help you get started:
You'll be able to reverse engineer the gear using these two online
calculators for help.
http://www.zakgear.com/Over_Pins.html
http://www.donkersdesigns.com/gear%20calculation.html
You'll need to download and install this program to help you work out the
change gears required to reproduce the helix angle from a decimal ratio,
calculated using the mill's leadscrew lead and the dividing head's ratio.
(If you've already been cutting gears for a while then I'm assuming you
already know how to do this)
http://metal.duncanamps.com/documents/gear.exe