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Gene Uselman
Posts: 2180
Joined: Thu Jul 07, 2016
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: QC
Laser Power: 130W
Laser Bed Size: 900x1300
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
LightBurn Version: Latest
Ruida Controller: RDC6442
Windows Version: Win 10 Pro
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, PrusaMK4 and Mini Prusa printers.

I have a sample of 1/2" Gatorfoam- black polystyrene core and looks like a paper surface of some kind that I am doing test cuts on- I get the foam burning away from the cuts [very nice and evenly] and of course what I need is a nice straight cut. Does anyone have experience with other foam boards that the core does not melt away. We would like to cut large letters for a gym wall. Thanks Gene
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Jeffrey Aley
Posts: 388
Joined: Fri Aug 11, 2017
Location: Folsom, California
Country: United States
Laser Machine Make or Type: Kehui
Laser Power: 50W
Laser Bed Size: 500mmx300mm
Home Position: TL
RDWorks Version: 8.01.24
Ruida Controller: RDC6442
Windows Version: Win10 Enterprise
Accessories: Spray bottle with water (for small fires)
Fire extinguisher (for big fires)

Gene Uselman wrote: Thu Nov 18, 2021 I have a sample of 1/2" Gatorfoam- black polystyrene core and looks like a paper surface of some kind that I am doing test cuts on- I get the foam burning away from the cuts [very nice and evenly] and of course what I need is a nice straight cut. Does anyone have experience with other foam boards that the core does not melt away. We would like to cut large letters for a gym wall. Thanks Gene
I dimly recall that Russ had good luck with Foamcore by using "dot" mode. The ordinary "cut" mode was only good if you want to set the material (and the laser) on fire. :shock:

The video MIGHT have been in his Thinklaser series.

Regards,

-Jeff
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User avatar
Gene Uselman
Posts: 2180
Joined: Thu Jul 07, 2016
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: QC
Laser Power: 130W
Laser Bed Size: 900x1300
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
LightBurn Version: Latest
Ruida Controller: RDC6442
Windows Version: Win 10 Pro
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, PrusaMK4 and Mini Prusa printers.

That is a good thought Jeff- I will pursue that. Gene
If the Help and advice you received here was of VALUE...
Please consider making a donation to maintain the RDWORKSLAB Forum.


The days that I keep my gratitude higher than
my expectations, Well, I have really good days.
Ray Wylie Hubbard- unfortunately deceased
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