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Messages - Davek0974

2491
General Mach Discussion / Re: THC Codes upset corners???
« on: April 06, 2014, 03:46:41 AM »
For future ref, the feature I was looking for is called "anti dive", just need to figure out what level % of federate to set it for.

Thanks guys.

2492
One other thing, be very careful with those drives, I bought three for my build and one failed after a couple of hours, they are very low spec builds and some use cloned components, only good for low power usage. My ones were rated 5A and I was running 4A I think, they also get very hot.

I'm using the genuine items now and they do not get warm at all.

2493
You are missing one vital bit of kit surely - a breakout board??

This is the device that connects your parallel lead to the drives, it also provides essential isolation as it very easy to damage a parallel port.

Search for "CNC breakout board" and all should become clear.

2494
General Mach Discussion / Re: THC Codes upset corners???
« on: April 05, 2014, 01:43:42 PM »
Ok done, many thanks

2495
General Mach Discussion / Re: THC Codes upset corners???
« on: April 05, 2014, 03:28:34 AM »
Anyone?


Does Mach ignore THC up/down signals when doing small circles and corners etc?

This seems to be needed to stop torch diving.

I can't find much out about this.

2496
General Mach Discussion / Re: THC Codes upset corners???
« on: April 04, 2014, 08:18:28 AM »
This is a simple THC, it has three outputs - Arc OK, Torch Up & Torch Down.

I can only use up & down as I only have two spare inputs left on my board.

There is no feed from Mach to the THC, I presumed that having the THC-Off code embedded would tell Mach to ignore any torch up-down signals until it hit an THC-On signal. I am only guessing though.

The unit has an inbuilt adjustable delay that only allows outputs after a certain time from establishing a "Good" arc, I guess I just rely on this.

Does Mach ignore THC up/down signals when doing small circles etc?

2497
General Mach Discussion / Re: THC Codes upset corners???
« on: April 04, 2014, 07:15:03 AM »
Neither have I  ;D

I just assumed that when fit the unit, having the G-Code created by sheetcam tell Mach3 when and when not to use the THC inputs would be a good idea?

I guess I was wrong ???

Maybe it does not matter?

2498
General Mach Discussion / Re: THC Codes upset corners???
« on: April 04, 2014, 05:00:46 AM »
Just tried creating a couple of macros, 101 & 102, inside i just placed DoOEMButton(222) Or (223)

It makes no difference, the movement still pauses for probably 10-20ms then starts again at each direction change.

The G-code looks identical, just has M101/2 sprinkled about in it.

2499
General Mach Discussion / Re: THC Codes upset corners???
« on: April 04, 2014, 03:44:44 AM »
Just checked and there are no M101/102 macros in the macros folder, would that explain the behaviour ??

How is this feature enabled??

2500
General Mach Discussion / Re: THC Codes upset corners???
« on: April 04, 2014, 02:52:04 AM »
Ah, My bad. :)

Is there a "Proper way" to do THC on/off???