Laser Power

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Figure out good values for a material not in the manual? Add them here!

Material Vector Raster Notes
Speed Power Freq Speed Power DPI
Cardboards
Bainbridge board "172" 45 60 500 Slot width ~1.28mm
Card Stock 110 lb 62 22 2500
Cardboard 1/8" 30 60 500 Conservative, try a speed of 35 or 40
Cork 3/32" 40 100 5000 Works great. McMaster #9487K2
Double-layer 1/4" 20 60 500
Foam Core 60 90 2500
Staples Sticker Paper 100 7 500 Cuts through sticker but not backing
USPS thin envelope 95 20 500
Wood
Poplar wood 1/4" 17 100 5000 Not sure about the frequency, seems to work at lower ones too
MakerBot wood 5 mm 7 100 5000 Manual focus is key. Move the bed up until the metal focusing thing just touches the plywood surface. Then move the bed up by pressing the Up button five times. Hit Reset and then Go. Rock! Then move the bed up another five pushes and run again at 50% speed.
Plastics
Acetal 0.93" Black 8 100 500 Mcmaster, Delrin 150
Acetal 3/16" 6 100 500
Acetal 3/16" 10 100 500 Two passes with these settings works well
Acetal 5 mm" 3 100 500
Acrylic (color) 1/8" 9 100 5000 100 35 600 Copied engraving settings from Nintendo DS - tested on colored acrylic, worked great
Acrylic (clear) 1/4" 6 100 5000 Book says 4%, 6% has been working.
Acrylic (clear) 5 mm 7 100 5000
ABS - Hammond MFG 1553D Enclosure 12 100 5000 100 65 600 Raster settings a work in progress, based on acrylic; 75 too much for busy bitmaps, 55 too little detail. Weird results 'cuz of textured finish on enclosure
HDPE 1/8" 40 100 auto Takes about 4 passes, keeps melting together
Kapton 0.005" The settings for 4 mil Mylar only cut part way through
Mylar 0.005" 100 15 5000 Make sure the aluminum side is down.
Other
Chocolate 100 30 300 It melts. Don't cut! (via Squid Labs)
Compressed Sponge 100 100 1000
Cotton (will darken) 60 20 200
HP Laptop - ETCH 100 23 2500 Vector etch pattern, probably could have been slightly lower-power
iPhone rev 1.0 100 40 600
Mini Moleskins ( cardboard brown ) 100 69 600
Nintendo DS 1st Ed. 100 35 600
Quartz(?) rocks 20 100
Acrylic felt (black) 40 50 800 Felt is porous; needed a cardboard backing so the laser could focus. Also, these settings cut a wide kerf. Experimenter recommends a faster speed (maybe 100) and lower power.
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