Messages

6291

Mach3 under Vista / Re: Win7 32 Bit W/PCI PP card

« on: August 01, 2011, 08:06:24 AM »

Just out of curiosity, are the failures you are getting with the refurbished dell's similar or all different ?

Tweakie.

6292

General Mach Discussion / Re: Computer problem after running mach3

« on: August 01, 2011, 07:21:51 AM »

Nigel,

If you get the chance I would like to know how your present cable / header is wired please.

Just out of curiosity I took a look at some serial connection D9 to IDC header cables and they are wired exactly the same way as the D25's.
Thinking about it, if they were wired D pin1 to IDC pin1 etc. then, at some point the wires would have to cross and that perhaps defeats the idea of ribbon cable and IDC.

Tweakie.

6293

General Mach Discussion / Re: Help understanding Mach emergency stop

« on: August 01, 2011, 06:40:31 AM »

Hi Scott,

Not sure why you haven't had some reply's to your question yet - do any of the reply's in this thread help http://www.machsupport.com/forum/index.php/topic,19138.0.html

Tweakie.

6294

Share Your GCode / Re: Great Bear Scene for CNC cutting!

« on: August 01, 2011, 04:14:01 AM »

Hi Jason,

Very nice bear scene - thanks for sharing.

Tweakie.


nb. I signed up for the free dxf files some 2 years ago now - still waiting. 

If you are interested you can even sign up to receive a free DXF file art disk each month.   Hope to hear from you soon.

6295

General Mach Discussion / Re: Computer problem after running mach3

« on: August 01, 2011, 01:47:26 AM »

Hi Nigel,

Looks good to me.

Tweakie.

6296

General Mach Discussion / Re: Computer problem after running mach3

« on: July 31, 2011, 02:00:11 PM »

Hi Hood,

You are quite right about the IDC pinout convention with odd numbers in one row and even numbers in another row.

It would look silly if we described the connections of this parallel port header as "pin1 to pin 1" ; "pin2 to pin3" ; "pin3 to pin 5" etc.
 
So to be precise:-  My diagram shows where each pin from the D25 connector ends up when it is terminated at the IDC end of the ribbon cable. The pin numbers shown in my diagram are the same as those marked on the D25 connector. (The note on the SS diagram covers this exact point and was probably put there to avoid all this sort of confusion).

If you are still in doubt - get a header cable, test it with a meter and be surprised  

Tweakie.

6297

General Mach Discussion / Re: Breakout Board

« on: July 31, 2011, 01:21:33 PM »

If people have ideas they would like to see incorporated, now is the time to speak.

All input opto's must accept the 3.3 Volt TTL standard.
All outputs should be suitable for driving both the 3.3 Volt and 5 Volt TTL standards.
Don't put opto's on the step and direction outputs or if you do then provide a bypass connection.

That's all I can think of at present.

Tweakie.

6298

General Mach Discussion / Re: Computer problem after running mach3

« on: July 31, 2011, 01:08:47 PM »

Hi Hood,

If you obtain one of these headers, which are designed to connect a Motherboard IDC to a parallel port printer and check the pin connections with a meter you will find that they agree with my earlier diagram.

Tweakie.

6299

General Mach Discussion / Re: G31 Probe problem

« on: July 31, 2011, 12:23:34 PM »

Hi Guys,

Has anyone got the "Contact Brian - Buffer Error" message when running their Macro's yet ?

Tweakie.

6300

General Mach Discussion / Re: Computer problem after running mach3

« on: July 31, 2011, 12:06:21 PM »

Hi Hood,

I understand what you mean ("pin 14 would normally be pin 2") it is in fact the second cable in the line but it does connect to pin 14 at the D25 end so it is cunningly called pin 14 at the IDC end. It is probably all done to confuse us all 
The attached SS documentation shows the male socket and some pin locations.

Tweakie.