Author Topic: The Laser Project.  (Read 769161 times)

0 Members and 1 Guest are viewing this topic.

Offline Tweakie.CNC

  • CNC is only limited by our imagination.
  • Global Moderator
  • *
  • Posts: 7,590
  • Super Kitty
    • View Profile
    • Tweakie.CNC
Re: The Laser Project.
« Reply #1060 on: May 17, 2018, 06:12:28 AM »
I think I found the answer, looks like it's as simple as, the optimal wavelength is the wavelength that is absorbed by the material.

Never really thought of it that way but it certainly sounds like a very good rule of thumb.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline Spandex

  • Active Member
  • Posts: 21
    • View Profile
Re: The Laser Project.
« Reply #1061 on: May 17, 2018, 07:29:58 AM »
Well, I never did get any response from Tomura Kazuki with his TomTom plugin, so I guess it's out of the question. I do wonder however whether the Mach3 plugin or DotG are smart enough to not stupidly scan the entire area line by line thereby going over large areas where engraving isn't necessary?
« Last Edit: May 17, 2018, 07:31:34 AM by Spandex »

Offline Tweakie.CNC

  • CNC is only limited by our imagination.
  • Global Moderator
  • *
  • Posts: 7,590
  • Super Kitty
    • View Profile
    • Tweakie.CNC
Re: The Laser Project.
« Reply #1062 on: May 17, 2018, 07:37:55 AM »
Quote
I do wonder however whether the Mach3 plugin or DotG are smart enough to not stupidly scan the entire area line by line thereby going over large areas where engraving isn't necessary?

Nope  :'(

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline Tweakie.CNC

  • CNC is only limited by our imagination.
  • Global Moderator
  • *
  • Posts: 7,590
  • Super Kitty
    • View Profile
    • Tweakie.CNC
Re: The Laser Project.
« Reply #1063 on: August 04, 2018, 10:16:12 AM »
Warp9 have now added the ability to laser reproduce (raster) 8 bit photographic images using their ESS and the v221 release Mach4 plugin. It is still very much in the beta stage and does not have a GUI but an excellent and detailed ‘setting-up’ tutorial has been prepared which should get any potential users up and running in no time. It equally supports vector laser work and is suitable for use with Diode, RF and DC excited CO2 lasers.

I have not had a chance to try it out yet but for those who may wish to do so, the full documentation and further details can be found here;  https://warp9td.com/index.php/faq/faq-mach4#LaserSetup

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline ART

  • Administrator
  • *
  • Posts: 1,691
  • Tough as soggy paper.
    • View Profile
Re: The Laser Project.
« Reply #1064 on: August 04, 2018, 10:23:12 AM »
Tweakie:

  Thx, nice to know. Nice to see lasers getting some respect. :)

Art

Offline Tweakie.CNC

  • CNC is only limited by our imagination.
  • Global Moderator
  • *
  • Posts: 7,590
  • Super Kitty
    • View Profile
    • Tweakie.CNC
Re: The Laser Project.
« Reply #1065 on: November 02, 2018, 06:13:02 AM »
I had been hoping that other Mach4 users with lasers and an ESS may have tried out the laser raster image reproduction but overall there does not seem to be much interest.

Considerable improvements have now been made with the latest ESS plugin Build 227 and Mach4 Build 3882 but the plugin is still lacking a GUI and key runtime features such as vertical step-over adjustment and image scaling.
 
Currently the vertical step-over seems to be set at one pixel, making the scan lines clearly visible and there is a definite issue with horizontal registration although this can possibly be improved by gating the laser PWM and adjusting the gate timings – something I have yet to try.

So far, this is the best I have been able to achieve – it can only get better  ;)

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline Tweakie.CNC

  • CNC is only limited by our imagination.
  • Global Moderator
  • *
  • Posts: 7,590
  • Super Kitty
    • View Profile
    • Tweakie.CNC
Re: The Laser Project.
« Reply #1066 on: November 05, 2018, 06:20:03 AM »
Thanks to Andy at Warp9 who explained to me how to fine tune the delays it was just a matter of trial and error before I was able to set the horizontal registration for my chosen feed-rate.
After 3 or so attempts it is now pretty close.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline Tweakie.CNC

  • CNC is only limited by our imagination.
  • Global Moderator
  • *
  • Posts: 7,590
  • Super Kitty
    • View Profile
    • Tweakie.CNC
Re: The Laser Project.
« Reply #1067 on: November 06, 2018, 07:27:19 AM »
Although I am using mach4 a bit more often nowadays I just had to try the same fox image using Mach3.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.