Centroid Community CNC Support Forum

Looking at a Gate machine, 5 axis. It currently has a Hedenhain controller - TNC407 / TNC 415B / TNC 425 (one of these, all in the same manual, not sure which one). The X Y and Z are all DC drives and are Maestro 140X8/16. The A and C Axis are Mini Maestro 60 x 7/14. I dont know if they are DC but l...

Thanks. It looks like most if not all offer velocity mode, so this should be fine then.

suntravel wrote: ↑Sun Apr 28, 2024 1:28 am I am using JMC AC Servos for axis and spindle, they work very well.

Uwe

Also searching for a Triac retrofit. Can Centroid output Step / Direction for spindle servo or only 0-10V? I'm concerned that some AC servos wont allow 0-10V.

rob murphy wrote: ↑Sat Feb 05, 2022 2:18 pm did that a few times, I think my backlash compensation is the issue.. just redid it , coming out .5mm too large on all 5 diameters.

Ah, that means you havent got an offset correct somewhere, IE reset up the tool.

Sounds like a mix up of radius vs diameter, I had that before.

i'm about to pull support (our DYN4 schematics and DYN4 drive type from the wizard) for the DYN4. countless hours spent on this forum trying to solve DYN4 related problems. I would use another AC motor/drive. Estun, Delta, Yaskawa, Clearpath you name it, they all work great. Maybe the DYN5 is great...

Ive got a Bridgeport running on Panasonic servos, others have success too with servos.

Acorn outputs step / direction, not -10 to +10. So your drives need to be able to use step / direction and not speed control, otherwise it would not work.

I love(d) that machine, took some inspiration from it when I was designing my own machines.

Most of the HY VFD's dont have the required braking circuitry. If you look in the VFD, you might see that nothing is connected to the terminals (from the inside).

- shows the motors installed.

- first cut.