Messages

5281

General Mach Discussion / G31 command.

« on: May 14, 2012, 03:48:10 AM »

Hi Guys,

I would be most interested to hear of others experiences using the G31 command.

I have been using it for some years now and with the exception of having to liberally add the ‘While isMoving() / Wend’ statements to the scripts (following a Mach revision some time ago) it has worked perfectly and without any other issues.

Does it sometimes go cranky and what is the suspected reason??

Your comments would be much appreciated.

Tweakie.

5282

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 14, 2012, 01:42:50 AM »

But four place decimal in metric are your running servos with 8000+ encoder pluses?

 

No way, my theoretical resolution is 3 microns but so long as it does the job I leave as many of the Mach settings as untouched as I can 

Tweakie.

5283

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 14, 2012, 01:35:22 AM »

What the yellow piece of material for?

That is the most important part Sam - It's the work piece which subsequently gets engraved 

Tweakie.

5284

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 13, 2012, 11:54:11 AM »

HIYA Tweaks , Have you thought about putting in an overtravel switch so that in cause the G31 goes wacky the OT switch will trip as a Limit and save the machine/tool/probe/part ??

Just a thought, (;-)TP

Hi Terry,

Must admit that I had not thought about that - damn good idea, thanks. 

Tweakie.

It's a very poor video (this is an area in which I really must improve my skills) but shows its operation. http://www.graytel.talktalk.net/probe.wmv

5285

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 13, 2012, 01:06:14 AM »

Thanks Ian. 

Thank you also for your work, a while back, relating to the G31 command and Mach’s interpretation of how variations in multiple contact resets the Var (2002) etc.
This was influential in my design and helped a lot.

Tweakie.

5286

Share Your GCode / Re: I NEED THE KISS LOGO IN G CODE

« on: May 10, 2012, 10:33:26 AM »

Hi Dave,

You are right about lazyCam - but it is extremely good at what it does despite not having all the features of other software's.

Logo's attached.

Tweakie.

5287

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 10, 2012, 02:06:04 AM »

Thank you for all the complements guys.

And we don't want that cheesy, cheap button, either. We want it made from platinum or at least gold.

Hi Sam,

This will make you smile....

The base / casing is made from aluminium and once it was finished, I swear I could hear your words saying "go on - anno it" so it was duly anodized and now has a silky smooth finish all thanks to you. 

Tweakie.

5288

Share Your GCode / Re: I NEED THE KISS LOGO IN G CODE

« on: May 10, 2012, 01:40:18 AM »

Hi Dave,

I know the feeling, it took me 12 months of savings to purchase the VCarve license. 

Tweakie.

Just a note for others that follow - Logo's such as this are often registered or copyrighted and whilst there is no problem relating to personal use they cannot be used for commercial purposes or public display etc. without first obtaining the necessary permissions from the owner of the design.

5289

Share Your GCode / Re: I NEED THE KISS LOGO IN G CODE

« on: May 09, 2012, 12:45:51 PM »

Here is an outline engraving toolpath which could also be used with a vinyl cutter.

You didn't specify dimension so this is small but you can use the Mach Scale DRO's to increase the size.

Tweakie.

5290

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 09, 2012, 12:09:13 PM »

Thanks guys, you are too kind.

I am going to re-layout the PCB as the prototype did not give quite enough space to solder the LED easily and I am still awaiting delivery of some different sized music wire as I have not yet finally decided on the appropriate contact spring pressure but it is all looking good so far.

This is the prototype PCB and top cover (the electrical contacts are on the other side of the PCB).

Tweakie.