Come to think of it, unless you’ve dramatically reduced the controller’s Start Speed, running at 2 mm/s may be throttling the power to-or-below the Min power setting:
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Who say’s old dogs can’t learn new tricks…
Very good info…
Not that I NEEDED an excuse to cut acrylic… but I will be…
10mm 130w laser 2mm/s 38% power FP set to top of material (not inset)
1 pass..
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That’s a neat shot! 
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Just tried this for fun .. I was surprised !
Acrylic Cut 20mm thick two 10mm pcs stacked
.75mm/s 75% power 28ma (130w tube) 5psi Air 1mm FP inset to material
this is the finish
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Those videos clearly show the “beam dragging” effect: the bottom part of the cut happens well behind the beam position, due to the acrylic not vaporizing instantly and the gases doing the cutting.
An earlier discussion pointing to a Sadler video:
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Great detail even at Big size.
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Talking about the frame, right?
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What frame! Oh yeah, I was too zoomed in looking at the detail…Great frame..totally fabulous.
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Ed…
are you referring to settings in the RUIDA MENUS ?
can setting the START speed to say.. 1mm/s
not sure where to look for these settings… RUIDA MENU / light burn menu settings ?
It’s accessed through the LightBurn Machine Settings window. The Start Speed you want is in the Cut Parameters section (or something similar), with defaults around 10 to 15 mm/s; there are others for the X and Y axes in the Engraving Parameters section that (probably) don’t apply to cutting.
What those speed settings do, in any detail, remains a mystery.
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