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Messages - Tweakie.CNC

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551
G-Code, CAD, and CAM discussions / Re: system command from gcode?
« on: September 23, 2018, 06:18:47 AM »
Yes, I think it can (with some reservations).

What exactly do you wish to use the Cmd line for ??

Tweakie.

552
General Mach Discussion / Re: Pul and Dir pins short
« on: September 22, 2018, 07:30:44 AM »
I think Fusco96 is made of tuff stuff but you were a bit hard on him Mike.  :)

Tweakie.

554
General Mach Discussion / Re: Mach3 on a laser cutter...
« on: September 21, 2018, 01:59:15 AM »
Hi   Tweakie,
 I now have my laser “cutting” very welll.    I was not aware that Mach3   Could be used for engraving.  So I am very interested in your comment, “ I should perhaps mention that engraved items, such as this tree image (330mm x 280mm) can easily be laser reproduced by either Mach3 or Mach4 without generating (or using) any Gcode at all”.

 Could you point me to where I can learn more about this  process ?
Thank you,
Chuck




Hi Chuck,

The attached copy draft document details the Mach4 laser setup when using the Warp9 ESS motion controller. You will note that a small Gcode file is used to set the laser origin and define the parameters but no Gcode is used to raster the image.

Check out the laser thread for details of using Mach3 but be warned it may be a long read. http://www.machsupport.com/forum/index.php/topic,12444.0.html

Tweakie.

555
General Mach Discussion / Re: Mach3 on a laser cutter...
« on: September 19, 2018, 10:36:57 AM »
I should perhaps mention that engraved items, such as this tree image (330mm x 280mm) can easily be laser reproduced by either Mach3 or Mach4 without generating (or using) any Gcode at all – they are produced directly by the motion controller which scans the specified .jpg image then outputs axis movement together with a PWM signal (to control laser power) relating to the relevant pixel value from the image. It may sound complicated but it is simple enough.

Tweakie.

556
General Mach Discussion / Re: Mach3 on a laser cutter...
« on: September 19, 2018, 10:05:48 AM »
Quote
Try doing one on granite 300 mm square.

Why ??

Tweakie.

557
General Mach Discussion / Re: Dolphin v10 post processors
« on: September 19, 2018, 07:00:04 AM »
I think Hood is the expert here but if it's any help the only Dolphin pp that I have seen is attached.

Tweakie.

558
General Mach Discussion / Re: G Code Question
« on: September 19, 2018, 02:50:22 AM »
You may also like to check that you have your Steps per Unit set correctly.

This can easily be done by using the Axis Calibration feature (Settings page) – choose a dimension of 10” or so and if the axis moves the correct amount then your Steps per Unit are set correctly.

559
General Mach Discussion / Re: Mach3 on a laser cutter...
« on: September 19, 2018, 02:37:11 AM »
Quote
Engraving on a laser means cycling the beam (dot) on and off very rapidly and sometimes changing the power while moving the X and Y.  Mach3 I am sure is not anywhere close to fast enough. You can do a solid line engraving, or cutting without issue I am sure.  But in this regard the Chinese DSP controller is the way to go, along with the software for that controller.

I have to disagree.
Whilst the DSP controller may be superior to Mach when it comes to laser control Mach3 can, for example, perform laser engraving operations with great precision. This laser produced lithophane is just 50mm square.


560
Screen Sets / Re: Super Simple Screen Set
« on: September 18, 2018, 04:14:27 AM »
OK got it loaded and working.  But the Homing does not work right and some of the pull down windows like Motor Tuning do not work.  So it came from a school... oh well it look nicd on to something else.

Problem resolved. This thread refers; http://www.machsupport.com/forum/index.php/topic,38340.msg260054.html#msg260054

Tweakie.

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