Messages

3581

General Mach Discussion / Re: Ditching the Vacuum Hold Down

« on: February 01, 2016, 07:15:57 AM »

If you have a perfect vacuum then the hold-down pressure is 14.696 p.s.i. If you are only holding on small areas of the work (to enable cutting- through) then, I think, you can calculate the requirements.
I use a vacuum table for small engraving jobs but I never use it for cutting through ( including pcb hole drilling ) but when it does come to cutting through, I ditch the vacuum table and double sided sticky tape becomes my best friend.

I must admit I do like the idea of onion skinning and sanding free but why not just use tabs ( created in the CAD/CAM ) and then break free ??

Tweakie.

3582

General Mach Discussion / Re: Feed Hold stopped working.

« on: February 01, 2016, 03:22:31 AM »

Hi Glen,

I did read your first post on the day but I don't think this particular issue with 'feed-hold' has ever been reported as a problem before.

Although I have never had any problems with v.066 (but I do use an earlier version most of the time) there have been many reports of various issues that have been overcome by reverting back to v.062, yours is perhaps another to add to the list. Thanks for reporting back with your solution.

Tweakie.

3583

General Mach Discussion / Re: CNC mill has mind of it's own

« on: February 01, 2016, 03:13:11 AM »

I agree with Dave - it's always best to have a dedicated PC (which does not have other software (which may run in the background) and is not connected to the net) running Mach3.

Tweakie.

3584

Mach4 General Discussion / Re: Add a laser to my CNC

« on: January 31, 2016, 05:30:18 AM »

I am following your progress and will be most interested to learn how you get on with changing the S#### (and thus the PWM) to switch your laser beam on / off.  In Mach3 the command is certainly far too slow but it is many times faster in Mach4 and it may work well.

Tweakie.

3585

General Mach Discussion / Re: Hit hard with the turret on the spindle... Damn!

« on: January 30, 2016, 08:05:40 AM »

Rich beat me to it with the question but I would like to know which version of Mach3 you guy's are using.

Tweakie.

3586

Mach4 General Discussion / MOVED: New PMDX-424 SmartBOB-IsoUSB is going to Cabin Fever.

« on: January 30, 2016, 02:19:35 AM »

This topic has been moved to Promote and discuss your product.

http://www.machsupport.com/forum/index.php?topic=31662.0

3587

Mach4 General Discussion / MOVED: PMDX-424 SmartBOB-IsoUSB now shipping

« on: January 30, 2016, 02:12:30 AM »

This topic has been moved to Promote and discuss your product.

http://www.machsupport.com/forum/index.php?topic=31795.0

3588

General Mach Discussion / Re: axis stall

« on: January 29, 2016, 01:55:59 AM »

Can you provide some details of your system...

Make & model (or details) of...

Your PC ?
Your CNC controller ?
Anything else connected to the system ?

Which version of Mach3 are you using ?


Tweakie.

3589

General Mach Discussion / Re: axis stall

« on: January 28, 2016, 11:19:58 AM »

Just from an initial look at your .xml may I suggest the following…

Config. / Ports & Pins / Motor Outputs  -  change Step Pin # for A Axis from 5 to 8.
Config. / Motor Tuning  -  reduce Velocity for both X and Y axes from 400 to 300 & save each change.
Config. / General Config  -  Uncheck Use Watchdogs,  Increase LookAhead to 200.

Please see if that makes any difference.

Tweakie.

3590

General Mach Discussion / Re: BAD DECISSION

« on: January 28, 2016, 10:29:17 AM »

Hi Lawrence,

If you post your .xml file (the one located in the Mach3 folder named <your profile>.xml [typically Mach3Mill.xml]) copy and rename it to lawrence.xml then use the 'reply' tab and Additional Options to post it. Then we can check you Mach3 settings and hopefully see if there are any problems with your set-up.

Tweakie.