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this means that when i have the thc mode set on in mach as soon as the arc transfers the machine starts to move but the arc hasnt penetrated the plate, i need to get some kind of a pause in there so i modified my sheetcam post processor to have a pause at the right time but mach seems to ignore it and as soon as it sees the arc ok signal it goes to the next line which has a machine move in it, any ideas why this happens? or if not any ideas on how i can get round it??

This is normal procedure. i.e. go to pierce height, fire, wait while pierce, drop to cut height, start motion. Which Sheetcam POST are you using and can you post the few lines of gcode you use at the moment please.

Ian

1364

General Mach Discussion / Re: macro to force oupt

« on: February 10, 2011, 07:39:51 AM »

Hi moreno

M300.m1s
activateSignal(OUTPUT7)

M301.m1s
deactiveSignal(OUTPUT7)

Add <space>M300 to the initialization string AND tick "use init string on ALL resets" both on the config/general config dialog.

Ian

1365

General Mach Discussion / Re: Stepper Speed Factors?

« on: February 09, 2011, 12:09:44 PM »

Hi Fastest1 - What Hood said - but also I think maybe you're looking at it the wrong way round. The speed your motors can achieve in terms of revs/min is primarily determined by the motors, the drivers and the power supply. Mach must then use a kernel speed that most appropriately allows it to provide whatever pulse speed is neccessary to achieve that. So whilst "capping" Mach's kernel speed too low will prevent your motors from reaching their potential, increasing it above their potential is pointless.

So for example: If your motors run fine at 20 inch/min (101600*20/60 = 33,866 Hz) then the 35KHz kernel is the one to use. If however, you decide that they're more stable and therefore set your max of 13.5 inch/min in motor tuning (101600*13.5/60 = 22,860 Hz) then the 25KHz kernel is the one to use and the 35KHz kernel would then be pointless.

Ian

1366

General Mach Discussion / Re: Subroutines

« on: February 08, 2011, 06:45:29 AM »

M98 (subfolder\sub.tap)

Cheers

Ian

1367

G-Code, CAD, and CAM discussions / Re: Convert this .dat file to DXF ? ? ? ?

« on: February 03, 2011, 01:36:39 PM »

No problem Russ - have fun

Cheers

Ian

1368

G-Code, CAD, and CAM discussions / Re: Convert this .dat file to DXF ? ? ? ?

« on: February 03, 2011, 10:31:06 AM »

Russ

I've re-done the dat -> dxf. Think it's how you want it now.

Also here's the clarky and clarkz from your link#3 but they're dwg's not dxf's. I tried converting them to dxf's but for some reason it's coming out crap. The dat files recode as dxf's much better than the dwg's for some reason. Anyway they're attached as well.

Cheers

Ian

1369

G-Code, CAD, and CAM discussions / Re: Convert this .dat file to DXF ? ? ? ?

« on: February 03, 2011, 04:33:08 AM »

Hi Russ - how you doing?

Not sure if you wanted DXF of the points or of the interpolated line through the points so I've attached both. I did this with a script through Rhino. If it's what you want (and there aren't too many

) let me know and I'll do them for you.

Cheers

Ian

EDIT: just noticed the strange wiggle on the trailing edge of the line version. Not sure what happened there. Attached is a better attempt.

EDIT: and how about one without the flat on the top surface

attached is the better-still dxf

1370

General Mach Discussion / Re: BOSCH COLT Power Cord

« on: January 31, 2011, 05:17:57 AM »

Is it me? - I am now completely lost. Is someone going around performing sense of humour bypasses for free or something? or are we being double negetive funny or has this thread just gone completely freekin mad?

I'm off for a lie down in a darkened room...

Ian