Messages

3881

General Mach Discussion / Re: Losing Y position erratically

« on: August 15, 2014, 11:37:45 AM »

Yes, one driver chip for each axis is usually the case.

Most single phase routers are "double insulated" and only have the two wires. If electrical noise was an issue I think you would see the axis position fault on a much more regular basis, if not continually.

Tweakie.

3882

General Mach Discussion / Re: Losing Y position erratically

« on: August 15, 2014, 11:15:38 AM »

The driver will run warm but the actual stepper motor driver chip must not be allowed to exceed the manufacturer's specification on working temperature.

(On another forum some have experienced similar problems to those you describe and fan cooling resolved the issue - thus my suggestion  ).

Tweakie. 

3883

General Mach Discussion / Re: Losing Y position erratically

« on: August 15, 2014, 07:00:03 AM »

Just a shot in the dark but I would be inclined to look at the stepper motor controller and make sure it has enough circulated air cooling. Perhaps fit another PAPST type fan ??

Tweakie.

3884

General Mach Discussion / Re: Auto tuning slaved axis with Delta Servo Drives

« on: August 15, 2014, 06:50:09 AM »

Very useful information CAIO - thanks for posting.

Tweakie.

3885

Mach4 General Discussion / Re: Mach4 Printer Port Discussions

« on: August 14, 2014, 01:58:13 AM »

Excellent work with the laser Art - that really looks the business 

I am expecting to see pictures of "great works of art" to follow 

Tweakie.

3886

Mach4 General Discussion / Re: Making MACROS turn on OUTPUTs faster by inlining your code!!

« on: August 13, 2014, 12:21:13 PM »

So it means you can inline wxLua code into your G code script?

Hi FocusPaul,

No, you can't do that.

In Macro's, if they are written with the fewest number of statements (careful programming) it will reduce the number of function calls and speed up their execution time.

(In practice, as we have discovered, the Mcode call, assuming it is on a separate line, in the Gcode program is actually executed some 50 milliseconds before the CNC machine has completed the preceding line of Gcode - this has been found too early for lasers (although suitable execution time delay can be added) but for many Mcodes and indeed spindle speed changes (Scode) operating early reduces overall machine run time and makes Mach4 faster).

Tweakie. 

3887

Show"N"Tell ( Your Machines) / Re: DC-K40 Laser conversion issue

« on: August 12, 2014, 01:52:08 AM »

Hi Derrick,

Try changing your Mach configuration so pin 7 is active low (inverted).

Tweakie.

3888

General Mach Discussion / Re: New people welcome !! Come in here and introduce your self!

« on: August 12, 2014, 01:46:40 AM »

Hi Mick,

Welcome.

If you post your question as a new topic in the general section I am sure there will be many that can help you.

Tweakie.

3889

Mach4 General Discussion / Re: Making MACROS turn on OUTPUTs faster by inlining your code!!

« on: August 12, 2014, 01:43:54 AM »

Thanks Scott - I am learning as I go 

Tweakie.

3890

Mach4 General Discussion / Re: Mach4 Printer Port Discussions

« on: August 11, 2014, 03:21:42 AM »

  Im facinated that you get 10ms early on an MCode.. thats pretty early..

Just a heads up - after more tests and  assuming the wx.MicroSleep timing is accurate the Mcode is taking effect some 50mS before the completion of the preceding line of Gcode (5 x the figure I had first thought). 

Tweakie.