HUM that should be in inches as I never work in Metric here. DID you select inches when you imported it into Scam?

(;-) TP

I did the second time

Ian, yes I suppose the external controller can throw up issues like that. I think Plasma is fairly well supported in the CSMIO controllers but suppose the only real way to know for sure would be to use it.

So if we go back to the corner dive control in as far as Mach when using the PP, is it simply an output that switches on/off or how does it work?

As for my plasma build itself, as said it will be a while away before I can start on the actual table. I did however get a cabinet from a friend which I will be using as the control cabinet, pics below are not that great but I think it will suffice.
Have managed to get some wiring done here at home, have managed to fit everything on it that I will need including the wee computer

Also a question for everyone, what size motor are people using for the Z axis?


Hood

Hiya Hood, The anti corner dive is an internal function for mach3 LPT. When you turn it on it looks at teh combined vel of XY and IF it falls below what you preset the Speed for it locks out the internal THCdown function from working. It can still do THCup though. When they speed get back above teh preset then it allows teh THCdown to work again.

NOW whether that works with teh CSMIO controller I do not know. You would need to ask  the manf of CSMIO that question.

(;-) TP

Ah ok, so no LEDs or anything?
Will ask Wojtek whether the CSMIO fully supports the Corner Anti-Dive and will post back if I get a reply.

Hood

Stepper motor:60BYGH301B  
https://www.cnc4you.co.uk/Stepper-Motor/Nema23-3.1Nm/Stepper-Motor-3.1Nm-60BYGH301B-Nema23
 http://cnc4you.co.uk/resources/Stepper%20Motor%20Nema%2023%2060BYGH301B%203.1Nm.pdf

Drives: leadshine am882h (ac or dc)
http://www.leadshine.com/productdetail.aspx?type=products&category=stepper-products&producttype=stepper-drives&series=AM&model=AM882

Poweraupply, 50v ac / 650va
Buy direct from the manufacturer, very highly recommended
http://www.vigortronix.com/ToroidalTransformers-DualPrimary2x115V.aspx

Thanks Rob, just trying to get a handle on the size of motors used to see whether my wee servo will do. It is quite hard to try and compare specs of servos versus steppers but it kind of gives me an idea.
The motor I now plan to use shoved the  X axis slide about no probs on the wee connect lathe I had and could plough a parting tool into steel quite easily without struggling, so I think it should be fine.

Hood

3.1Nm on my Z and CNC4YOU.co.uk DSP stepper drives

Thanks Dave, what Vel and accel are you getting, also same to Rob and anyone else who cares to join in

I just bought another motor with a 10:1 gearbox so may end up putting a bigger motor on anyway as I had been contemplating having a drilling head there also so I could do small holes that the plasma wouldn't manage, thats for the future though.

Hood

I had it set originally at 1200mm/min and 900mm/s/s acceleration, this seemed a tad low so I pushed it up until it screeched which was at 2000mm/min so i backed off to 1500mm/min. The acceleration went way up to 5000mm/s/s before a screech so backed that down to 4000mm/s/s which gives an estimated 0.3g and 744rpm measured with a tacho on the motor shaft. I think thats ok for a 3.1Nm Nema23 motor. Steps per mm is 1000, 2mm pitch screw direct drive.

Dave