Messages

1071

G-Code, CAD, and CAM discussions / Re: Prepatory G code

« on: October 31, 2019, 02:18:39 AM »

Hi Marce,

You are currently using a Pirate Mach3 license.
You will need to purchase a genuine license before the forum can offer any assistance to resolving problems.

https://www.machsupport.com/software/mach3/

1072

PoKeys / Re: Pokeys57CNC Analog PWM Output to control Laser with M11P1 M10P1

« on: October 29, 2019, 06:08:55 AM »

Unfortunately the M3/M4/M7/M8 commands are just not fast enough.

The alternative is to use an (imaginary) axis direction pin. This perhaps explains;

http://hobbycncart.com/publ/cikkek/mach3_temaju_cikkek/switching_a_laser_under_mach_control/8-1-0-29

1073

PoKeys / Re: Pokeys57CNC Analog PWM Output to control Laser with M11P1 M10P1

« on: October 29, 2019, 02:09:55 AM »

I am not certain that the 57CNC supports the M11/M10 command set (never tried it) but assuming that it does then you would only be able to switch an unassigned Output Pin ON/OFF not the PWM on Pin17.

Different motion controllers use different systems but my solution was to (hardware) gate the PWM signal pin with the M11/M10 output pin and I have described this here;

https://www.machsupport.com/forum/index.php?topic=12444.msg265104#msg265104

Hope this helps.

1074

Tangent Corner / Re: It's a Dog thing.

« on: October 28, 2019, 04:32:55 AM »

Is this the best Halloween costume or what ? 

1075

General Mach Discussion / Re: Cutting wrong dimensions in only one spot

« on: October 26, 2019, 01:39:25 AM »

Can you please attach your Gcode that is causing the problem ?

1076

General Mach Discussion / Re: Diode laser wiring-help please

« on: October 25, 2019, 07:07:15 AM »

My advice is forget the shed and enjoy a break. 

1077

General Mach Discussion / Re: Diode laser wiring-help please

« on: October 25, 2019, 06:28:56 AM »

This article gives some insight into laser switching;
http://hobbycncart.com/publ/cikkek/mach3_temaju_cikkek/switching_a_laser_under_mach_control/8-1-0-29

To obtain laser output power control the easiest method I have found is to gate the PWM signal with the Output# used with the M11/M10 (M62/M63) command set and I have described that here;
https://www.machsupport.com/forum/index.php?topic=12444.msg265104#msg265104

I await your questions 

1078

General Mach Discussion / Re: Diode laser wiring-help please

« on: October 25, 2019, 06:11:14 AM »

Assuming you are using Mach3 – are you using the PC’s Parallel Port or are you using an external motion controller ?

1079

CS-Lab / Re: Csmio-s with Opt laser

« on: October 23, 2019, 07:55:03 AM »

I made this video a few years back (before the M62/M63 commands had been added to Mach4) when I gated the PWM with The A axis Direction signal.
The toolpath alternates between Cut and Engrave as the PWM is altered and it serves to illustrate the gating principle I have described.

https://www.youtube.com/watch?v=8fUg6ebWut0&feature=youtu.be

1080

CS-Lab / Re: Csmio-s with Opt laser

« on: October 23, 2019, 07:39:45 AM »

Hi Johan,

I am not sure you are going about this the right way. A TTL input is digital and only responds to two distinct states – High or Low (excluding the High Z of tri state logic) so connecting it to an analogue output will only produce ON at full power or OFF.

Ideally, to control a laser with adjustable output power you need to gate the digital PWM signal with the M62/M63 commands. This gives laser ON / OFF at the set PWM value.
There are a number of different ways to achieve this but my best (easiest) solution is described in this thread; https://www.machsupport.com/forum/index.php?topic=12444.msg265104#msg265104
(For Mach3, read Mach4 and for M11/M10 read M62/M63)

Hope this helps.