laser
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— | laser [2013/08/13 12:13] (current) – created - external edit 127.0.0.1 | ||
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+ | ==== The Laser Cutter | ||
+ | |||
+ | Cleaning the laser | ||
+ | |||
+ | **Everytime** | ||
+ | |||
+ | < | ||
+ | | ||
+ | | ||
+ | | ||
+ | | ||
+ | Wipe down the razor with a cloth after use.</ | ||
+ | |||
+ | **Frequently** | ||
+ | |||
+ | < | ||
+ | A quick wipe around the inside of the laser, where there is no grease or moving parts will help with the build up. | ||
+ | Check inside the lower drawer and remove offcuts etc. | ||
+ | Clean off the honeycomb with compressed air, do it outside.</ | ||
+ | |||
+ | |||
+ | |||
+ | wiping down the dust thats generated, if the lights fall off don't let them hang on to the table bed potentially letting hte wires catch on the gantry, retape them | ||
+ | |||
+ | |||
+ | |||
+ | {| class=" | ||
+ | |+ Laser cutting chart | ||
+ | |- | ||
+ | ! scope=" | ||
+ | ! scope=" | ||
+ | ! scope=" | ||
+ | ! scope=" | ||
+ | |- | ||
+ | ! scope=" | ||
+ | | .1181 | ||
+ | | 20 | ||
+ | | 60 | ||
+ | |- | ||
+ | ! scope=" | ||
+ | | 5.2mm | ||
+ | | 8 | ||
+ | | 90 | ||
+ | |- | ||
+ | ! scope=" | ||
+ | | .1181 | ||
+ | | 20 | ||
+ | | 80 | ||
+ | |- | ||
+ | ! scope=" | ||
+ | | 4 | ||
+ | | 8 | ||
+ | | 12 | ||
+ | |- | ||
+ | ! scope=" | ||
+ | | .002 | ||
+ | | 10 | ||
+ | | 300 | ||
+ | |- | ||
+ | ! scope=" | ||
+ | | 5 | ||
+ | | 10 | ||
+ | | 15 | ||
+ | |} | ||
+ | |||
+ | 300 Speed and 10 Power is a good setting for engraving MDF. | ||
+ | |||
+ | 90W/100W peak LC900N http:< | ||
+ | |||
+ | Machine currently needs the dongle attached, the PC is attached to the same power strip as the laser, so removing power will switch off the pc too ( get a UPS for the PC ) | ||
+ | |||
+ | LaserCut3 is the software to use. | ||
+ | |||
+ | Make sure the chiller, air pump and blower are on before running the laser and that the exhaust tube for the blower is outside the window, be wary of blow back. | ||
+ | |||
+ | The burn test | ||
+ | |||
+ | http:< | ||
+ | |||
+ | === Making solder paste stencils | ||
+ | |||
+ | [[Laser Stencils]] | ||
+ | |||
+ | **Things we can cut or mark** | ||
+ | |||
+ | | ||
+ | |||
+ | Plastics: | ||
+ | |||
+ | < | ||
+ | ABS (acrylonitrile butadiene styrene) | ||
+ | | ||
+ | | ||
+ | | ||
+ | Mylar (polyester) - Available at Office Depot as "Laser Transparency Sheets" | ||
+ | Nylon — melts badly | ||
+ | PETG (polyethylene terephthalate glycol) | ||
+ | | ||
+ | | ||
+ | | ||
+ | | ||
+ | |||
+ | Foam: | ||
+ | |||
+ | < | ||
+ | | ||
+ | EPM | ||
+ | Gator foam — foam core gets burned and eaten away compared to the top and bottom hard shell.</ | ||
+ | |||
+ | Other: | ||
+ | |||
+ | < | ||
+ | | ||
+ | | ||
+ | | ||
+ | | ||
+ | | ||
+ | Woods (MDF, balsa, birch, poplar, red oak, cherry, holly, etc.)</ | ||
+ | |||
+ | | ||
+ | |||
+ | < | ||
+ | Some metals, often with something | ||
+ | Some glass, less lead the better. Glass doesn' | ||
+ | |||
+ | **Materials we cannot(should not) laser cut** | ||
+ | |||
+ | < | ||
+ | Metal | ||
+ | | ||
+ | Any material containing chlorine | ||
+ | PVC (Cintra) — contains chlorine | ||
+ | Vinyl — contains chlorine | ||
+ | Glass — we can engrave glass, but we cannot cut it. | ||
+ | | ||
+ | | ||
+ | | ||
+ | | ||
+ | | ||
+ | |||
+ | |||
+ | Chlorine gas is nasty stuff, it'll damage you and the laser. | ||
+ | |||
+ | | ||
+ | |||
+ | < | ||
+ | | ||
+ | | ||
+ | | ||
+ | |||
+ | Power Density (W/cm^2) = 255/d^2 * power (d in mm and power in watts) | ||
+ | |||
+ | | ||
laser.txt · Last modified: 2013/08/13 12:13 by 127.0.0.1