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emco pc turn 55 conversion to mach3

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Emgee01/06/2021 16:35:10
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Posted by Joseph Noci 1 on 01/06/2021 14:47:49:
Posted by Emgee on 25/03/2019 10:32:02:
Posted by David Colwill on 25/03/2019 10:17:00:

I run Mach 3 on 2 milling machines and a Denford Easiturn lathe. They all work fine for what I do but I am still thinking of going to the dark side (linux) and have bought a Denford Orac as a test bed machine. If I get on with it I will probably switch over on everything.

The main reason is threading. While the easiturn is big enough to manage this on short threads it loses sync over 40mm or so. This is going to be much more of a problem on a smaller lathe like the PC Turn.

I have always meant to try linux but have never got round to it so now hopefully I soon will.

Regards.

David.

Please keep us posted on any upgrade, I am still using an Orac with OEM controls.

Emgee

What type of motors drive the X/Z axis on the Orac? What is the spindle motor?

I would be happy to help you get the lathe onto Linuxcnc , to the extent that I can! My homebrew CNC lathe was reasonably easy to get working as a simple 2 axis lathe - but had a hernia getting the C axis function implemented. If you are not doing that sort of thing, the system configurator tools in LCNC get you very close to a working machine.

The issues lie in the axis motors, etc - if X/Z are plain steppers, you could configure it yourself. If closed loop steppers or servo's, notwithstanding all those linuxcnc experts who claim Linuxcnc is the answer to all questions - you will endure pain! And if the spindle motor is a big closed loop servo, the pain is exquisite...However, similar pain lies ahead for such implementations even with the likes of PlanetCNC, Centroid, etc...unless for the latter you buy a 'configured' kit with motors, etc..= money..

Joe

Joe

The XZ axis are driven by Stepper motors and the spindle drive is 3 phase controlled by a VFD, speed is programmable within the program, power required is 220-240v AC single phase.

Emgee

Edited By Emgee on 01/06/2021 16:37:50

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