Messages

301

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 03:54:47 PM »

6" x 5"?

My offering here... (in mm)

302

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 02:40:00 PM »

Well I'm sure we all have one, I'll post mine later, a 2" square with two radiused corners at opposite ends of different radius with a large hole in the centre and a smaller hole off to one side with a rectangular tooth shape cutout....

It's what I always start off with, with new plate or setup to test.

It tests everything shapewise I will throw at my machine except long cuts, or really thick cuts.

Bread and butter for me is 1.5mm to 4mm, occasional 6mm but I'm not into armour plating my real hobby (landrover)

Keep working toward turning hobby into business...  paycut from dayjob... But may be more enjoyable.... Retirement business maybe in future.

303

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 01:57:07 PM »

Dave, did you have a look at the PDF I posted a forum page or two before?

(I'm out of ideas)

304

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 01:10:02 PM »

Have you looked at the sheetcam post processor and had a go at tweaking the m11p and m10p (10=off, 11=on)... As they only function if a motion movement is present (g01 for example) so most people use a phantom axis... You could change this to a real movement to extent the last movement by say 20mm (or something that works), so the machine does not slow down the feedrate to zero and then turn the torch off

305

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 12:58:56 PM »

Dave,

Divot at the end, you could try using m10px and m11px to turn your torch on and off, and change your post processor to extend your torch travel a little.... So the machine motion does not slow down before the torch goes off.


Divot at the start.... Sorry you are stuck there unless you can pierce in the waste (hole centre, out of the part or art in your case.... Nice website must say)

306

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 12:53:20 PM »

Dave how are you controlling THC?

Is it via mcode?.... Or what?

307

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 12:48:37 PM »

ANti corner dive in Mach3 has an On/OFF control AND you can set teh level at which it kicks in as a percent of feedrate. IF you set teh level at 80% then when teh Combined Vel in Mach3 slows to a level of 80% of teh called feedrate it should LOCK out the thcdown motion. When the Comb Vel gets back above 80% it releases teh lockout and THCdown can work again.

Ok that is fine, the MiniTHC has an input to lock the THC, so that could easily be connected via the AntiCorner Dive I think
Hood

But I don't think you can programme an anti-dive output within Mach can you.... It's all an internal fiction that a plugin can tap into is it not.

If anti-dive can be tied to an output ...here to learn please....


Guess it could be via macropump or brains.... But is that not too slow, hence you want it controlled in the motion controller via mach3 40hz fast loop?

Given if you were cutting a square say, the blended velocity will change maybe below the 80% feedrate at the corners or if you use fishtails (or whatever the correct term is)

308

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 12:18:03 PM »

The latter is the bog standard

309

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 12:04:17 PM »

Which plugin?    ...confused....

Thought the discussion was regarding the minithc from po-mo...

And the option of controlling a servo directly (up/dn) or back to the cismo .... Which will output step and direct to the servo... Kind of forwarding the THCUp or THCDn provided the THCOK is also present.

310

General Mach Discussion / Re: Physical buttons for plasma

« on: February 04, 2016, 07:18:10 AM »

may be of interest of someone:

http://www.metalwebnews.com/howto/plasma/presentation.pdf