hobbing helical gear

You are still not providing enough information. If you want people to help it might be worth your while to elaborate a bit more. Maybe there are people here who have a hobber and know what you want but I don't.

I guess the Z axis is the vertical slide with the hob and the X is the horizontal slide with the limit switch that has wires coming out of it?

To me it looks like the hob is already slanted.
Where does LinuxCNC come in here? Do you want to motorize the angle of the hob?

[edit]
Are you aiming to replace the gear mechanism between the hob and the gear as CORBETT has guessed?
Have a look at this:
forum.linuxcnc.org/10-advanced-configura...e-electronic-gearing
and
wiki.linuxcnc.org/cgi-bin/wiki.pl?Hobbing

Here is Andys video of his setup:


Or also here:

yes I understand for people who do not know helical cutting it is not easy.
Originally the machine has a mechanical differential, which we adjust according to the helix angle, but there is no longer any on my machine, I would like to replace it with linuxcnc.

@jefsaro

Aciera is right, need a little more info to give good answer.

I have not cut helical gears before, but I thought that there was not really any difference between Spur and Helical hobbing other than tilting the hob more degrees to get the tooth angle. Is this wrong? If wrong, what other process that needs to happen other than Hob rotation tied to the gear blank drive, and hob spindle movement.

When you say "originally the machine has a mechanical differential", are you referring to the change gears between the hob and the gear blank?

My machine is almost identical to yours and mine has the hob head move up and down for the cutting process. Is there any other movement other than these three: 1= Hob rotation, 2= gear blank rotation, 3= hob spindle movement?

I have a really good Barber-Colman book that explains all the different ways to setup a manual machine for hobbing, but I can't get my hands on it at the moment...


Robert

look at my book pfauter with the calculation formulas for the helicoidal

sorry it's in german