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Author Topic: Laser build  (Read 7127 times)

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Re: Laser build
« Reply #20 on: September 27, 2012, 11:49:58 AM »
The laser itself is IPG.  It's not inexpensive though.
Bruce Boone
Boone Titanium Rings
Re: Laser build
« Reply #21 on: October 04, 2012, 04:53:40 PM »
Making progress with the laser.  I'm finding that I do need to specify the A axis as a rotary axis otherwise the discrepency in counts per revolution versus the normal X axis is too much variation.  I ran a part and the part was cutting off center.  I finally realized that I was missing steps because the feedrate that worked for the rotary was way too fast for the X axis to catch up if the line only had an X move in it.  I reset the machine to look at A as a rotary axis and set the proper diameter and the axis feedrated worked normally.  I do program my parts to 3.6" in Y then in a word processor, convert the Y's to A's and put a g51 a100 to scale it to full rotary.  That all works well now.

Here's a question; can the diameter of a part be given in the G-code of a part instead of input on the settings page?  I know for a fact that I will sometimes forget to set a diameter and get a ruined part.  Even having an average diameter for rings, like .80" will be close enough to get the feedrates to work well.
Bruce Boone
Boone Titanium Rings

Offline alenz

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Re: Laser build
« Reply #22 on: October 04, 2012, 05:40:42 PM »
Create this Macro:

SetOEMDRO(825, Param1 ())
end

Name it, (for example "M666.m1s")

Adding this line:
M666 P0.80
in the G-code will run the macro and enter 0.80 in the A diameter DRO.
Al

« Last Edit: October 04, 2012, 05:42:27 PM by alenz »
Re: Laser build
« Reply #23 on: October 04, 2012, 06:18:33 PM »
Exactly what I needed.  Thanks Al.
Bruce Boone
Boone Titanium Rings

Offline alenz

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Re: Laser build
« Reply #24 on: October 05, 2012, 03:22:48 AM »
 :)