Boxford Hmc full 4th,

[chris w]

Hello Paul,
have you got some pics of the rotary table axis, how much stroke of the y axis have you lost having the rotary table mounted on top of the original table?
regards,
chris.

[Paul H]

Hi Chris

I have lost about 70mm on y axis, that is to the top of the extra rotary table see arceurotrade part number 130-030-00300, and I lose a bit more as I have fitted a Jacobs chuck in the 2mt taper, all I needed to do was cut some gears, did work well. I will post a picture over the weekend for you...
I don't think it is the best way though! I would prefer to get the 70mm ++ back and use the original table.
Regards
Paul

[uli12us]

Sorry, I haven't been on this site for a very long time. I have the same machine, No9 if its interessant. I have seen, the stepper drivers work with 5V-TTL and Step-dir like many normal stepper drivers.
Unfortunately, I don't know which gear ratio they use for the wormgear.
If you remove the ratchet and change it to a wheel with a Bicycle Brake or similiar, it should be no big problem, to use it bidirectional. But you must use the brake to clamp your rotary table.