Messages

1931

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: February 15, 2018, 05:17:28 AM »

Hi Art,

Thought you may be interested in this which is something I had not seen before. It is a 3 axis scan head which can scan very large areas by obviating the requirement for an F-Theta lens system. https://nutfieldtech.com/3xb-3-axis-scan-head/

This pic. is of a Nutfield 3XB. Obviously the beam angle changes dramatically during the scan but the focus remains constant.

Certainly something for me to investigate further.

Tweakie.

1932

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: February 15, 2018, 02:24:28 AM »

Wouldn't it be cool if along with laser cutting, it also had a sensor that gauged depth at the same time!

Something for you to design perhaps ?

The Mach3 plugin will reproduce 8 bit images (true shades of grey).
DotG produces 1 bit images (illusion of shade by dot-dithering).

If you contact Tomura directly he will send you a copy of his TomTom plugin.

Tweakie.

1933

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: February 15, 2018, 01:41:05 AM »

Hi Spandex,

Depth control is a weak point.
Comparative depth and repeatability is generally good but trial & error is usually used to arrive at the correct initial settings.

Tweakie.

1934

General Mach Discussion / Re: Problem with scaling(?)

« on: February 14, 2018, 10:46:20 AM »

Try adding G20 to the start of your Gcode file.

Tweakie.

1935

General Mach Discussion / Re: LOST BUT NOT BEATEN

« on: February 14, 2018, 10:32:22 AM »

.zip and attach your problem Gcode.

Tweakie.

1936

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: February 14, 2018, 08:18:51 AM »

My problems now I think are mainly the damn theta lens, one of those things with very little information to go on.

Hi Art,

Not something I would tackle - mathematically correcting for the scale and pincushion distortions sounds like hard work compared to my simple linear engraving work and drinking beer.

I am pleased you have your galvo head working OK – I am still thinking along the lines of linear Y axis and galvo X axis but yet to construct the prototype.

Tweakie.

1937

Spanish / Re: CNC Mexico

« on: February 14, 2018, 08:03:52 AM »

Is that a Warp9 ESS ?

Tweakie.

1938

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: February 14, 2018, 07:50:03 AM »

Thanks for the info. Art.

One thing that concerns me is that I have learned so much over the years (lots from you) that if it is not shared with others now then one day it may all be lost.

Tweakie.

1939

General Mach Discussion / Re: LOST BUT NOT BEATEN

« on: February 14, 2018, 07:14:32 AM »

If you .zip and then attach your problem Gcode then it can be checked but if the problem was Aspire related then I am sure that others would have been reported it before now.

Tweakie.

1940

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: February 14, 2018, 06:31:16 AM »

Pictures always speak louder than words and (as you all know) I just love pictures.
Not to everybody’s liking but this is my take on changing the pin allocation and polarity of a PWM signal on a DB25 ribbon header cable connecting my CNC machine to the controller.

Tweakie