Posted by BillS on December 12, 2008 at 16:31:19:
In Reply to: G & E 36 Gear hob machine posted by Ernest Shaw on December 12, 2008 at 14:20:12:
At the FAQ page:
I see 5 different G&E's each with a 20 index, and those have 3 different differential constants. And none of those are a No. 36. This is not unusual since many same numbered model hobbers were built with different internals for indexing and differentials. I think most manufacturers keep a list of serial numbers to identify constants for specific machines.
I found that G&E is owned by RP Machine enterprises. You can see their G&E page at:
Do you have a tested setup for your machine that cuts a good helical gear? I could reverse eng that to arrive at a good diff const guess. Just need the NDP, helix angle and differential gear set. BTW, this machine is a type "A" for CPC-HOB.
The feed constant for a G&E (again, based on the FAQ listing) seems to be one of 3 possibles - 1/12, 1/8, or .075. I think you could do
the FAQ test on your machine to determine which one you have.
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