Messages

7321

General Mach Discussion / Re: Motion Controller to Mach3 Problems

« on: November 11, 2009, 09:45:27 AM »

Those drivers look ideal to use with Mach and the documentation is good, identifying the step and direction pins ( which is what you need to know ).
You should have very little trouble hooking these up directly to your LPT port ( as it looks like the opto isolators are already included in the driver ).

Tweakie.

7322

Show"N"Tell ( What you have made with your CNC machine.) / Re: My Clock

« on: November 11, 2009, 03:25:40 AM »

Really nice clock Art. Does it have a satisfying tick ?.

Tweakie.

7323

General Mach Discussion / Re: Motion Controller to Mach3 Problems

« on: November 11, 2009, 03:13:38 AM »

Having read through the documentation, I think Rich has summed it up perfectly.
Sorry to say this but the controller you have is quite old technology compared with the modern stuff. It appears that the best it can do is quarter step and although this is OK eighth step or better produces much smoother operation and is far more tolerant to the acceleration/deceleration of mass.
If you are just starting out on CNC I think you would be struggling with this and would be better placed to use Gecko drives (or similar) for your machine.

Tweakie.

7324

General Mach Discussion / Re: Motion Controller to Mach3 Problems

« on: November 10, 2009, 03:00:09 AM »

Could you tell us which of the manuals, shown on the website, relates to your controller. Their info is quite comprehensive but seems to lack some of the very basic details.

Tweakie

7325

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: November 09, 2009, 06:28:02 AM »

Thanks Brett, so far so good.

Well made a start on the control electronics and cut the circuit board this morning. I am hooked on this 'isolation routing' method for making simple, one off, circuit boards - it is so simple and with no mess. Now to fit the components and bench test it.

Tweakie.

7326

General Mach Discussion / Re: Power Supply upgrade 24-48 G540 the Bad Pins?

« on: November 09, 2009, 06:17:17 AM »

Pins 18 to 25 inc. are all ground.

Tweakie.

7327

General Mach Discussion / Re: Power Supply upgrade 24-48 G540 the Bad Pins?

« on: November 08, 2009, 05:32:42 AM »

Yes - that is the way to test the input pin functions - thanks Hood.

Tweakie.

7328

General Mach Discussion / Re: Power Supply upgrade 24-48 G540 the Bad Pins?

« on: November 08, 2009, 04:56:03 AM »

Sorry Hood the answer should have been No you can't Sir. (my first mistake of the day).

Tweakie.

7329

General Mach Discussion / Re: Power Supply upgrade 24-48 G540 the Bad Pins?

« on: November 08, 2009, 04:51:39 AM »

Yes you can Sir.

Tweakie.

7330

General Mach Discussion / Re: Power Supply upgrade 24-48 G540 the Bad Pins?

« on: November 08, 2009, 03:10:50 AM »

Using Parmon:-

With nothing connected to your PC parallel port, if you can toggle the state (by clicking on them) of the pins you suspect (the ones the limit switches were connected to) then your parallel port is OK and can be ruled out as being the cause of the problem.

Tweakie.

Update:- JigSaw please disregard this as it will not help identify bad input pins on the LPT. It is only for output pins (my mistake).