Thanks Martin
That's a great help. Looks like my friends one has been modified or I have got the maths wrong. Is it normal to require 100 PSI to open the draw bar?

We bypassed the controller and feed the mil direct from the compressor (with regulator)

I'm looking to add a Power draw bar to my nova mill but cant seem to find out what Bellville's are needed. In one of the posts it says 28 x 14.2 x 1.25 but that doesn't match the force required on a friends nova mill. From the 2600N fully open force it looks like 28 x 14.2 x 1.5 is a closer match Be...

Does anyone know the draw bar force on the Nova mill? I'm looking to build a Power drawbar that's different from the standard so want to check what forces are required. The standard ATC uses 27 Bellville's compressed by 3mm when holding a tool. From my calculations that only gives 500N pull force wh...

I'm looking to convert my nova mill to a power draw bar and wondered if these pull claws would work? https://www.ebay.co.uk/itm/BT30-CNC-Spindle-Tools-4-Petal-Pull-Clamp-Claw-With-pull-stud-45-degree-UK/223658554685?hash=item341316b53d:g:7AEAAOSwK7xddb25 I can' see any dimensions on the drawings and...

Still looking for a cyclone, anything considered!

Thanks

I'm looking for a Cyclone or similar 35mm spindle capacity lathe.

Ideally one with dead electrics ready for retro fit single phase and linuxcnc.

Cheers