My new desktop laser engraver from BangGood.

General CNC CNC Routers
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My new desktop laser engraver from BangGood. 1.6W, good enough to play with but 2.5W is slated for it, 5W if I can find it. The idea is to use this to cut all this styrofoam I have into wings and fuselage pieces/sections/bulkheads for my RC planes. Whaddaya think +Peter van der Walt​, a LaserWeb candidate?

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If you are running a smoothieboard or GRBL board, you are good fro LaserWeb

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Those are grbl

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I am going to play with it like this and then…maybe…use one of the 2 GrblPi boards that I got from +Peter van der Walt​. Failing that it gets one of @raykholo ​’s Smoothie Remix boards

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For the small laser engraver like this, it is not much of a benefit going to a smoothieboard, if you use Mr. Beam’s grbl fork, you get proportional power/acceleration. You would not need all the extra features smoothieboard has. But to get the benefit from either controller, you need to get a new driver for the laser that will allow PWM control. DTR Laser shop has some really good, inexpensive drivers. https://sites.google.com/site/dtrlpf/home/flexdrives/x-drive

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Thanks Anthony

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You can get a complete 7W laser and driver in a 12mm holder with a 3 element lens from DTR LaserShop for $170.00 https://sites.google.com/site/dtrlpf/home/diodes/6w-nubm44-445nm-laser-diode All you need on top of that is a heat sink from http://banggood.com for $5.39 http://www.banggood.com/12mm-Lengthen-Laser-Module-Heat-Sink-Holder-Mount-Cooling-Heat-Sink-CNC-Parts-p-983552.html and a small 20mm fan. So all in you can have a 7W laser setup for under $200. This is the best bang for the buck out there right now.

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I hope I can use the same housing with the built in fan for this…

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a) How thick foam? b) thinking about scaling the frame up quite a bit?

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If the current heat sink is for a 12mm diode carrier then it could be re-used, so just $170 for the diode,lens,driver,and 12mm carrier. Can’t get a better price than that.

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Is the 7-watt laser from DTR able to cut dollar-store foam board?

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Might scale it up a bit later…and 1 inch

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I am pretty sure it will cut the dollar store foam, as I have seen others use the 2.5W laser and have success with 2 passes.

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jtechphotonics says they couldn’t cut DSFB, but the test was done with a 1W laser. Its really 'effing tough to figure out what will cut what with everyone using different wavelengths and powers. I feel like someone needs to make a wiki-based database…