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These are a few objects I ran off on the new 40W laser cutter we got at the lab. Stitch is etched into acrylic, the keys are cut from acrylic, and the Bent-Tail is from a drawing done by 
yuchidayena.
The wood is etched about 1mm deep, the acrylic about the same. The overall thickness of the acrylic is about 3mm, the wood was laser cut to size, and is almost 1cm thick.
Looking into some interesting new projects with this machine, now that I've focused things up and got it running well. Still learning how certain materials react to it, but it will definitely be an awesome new tool to have in addition to the 3D printer.
yuchidayena.The wood is etched about 1mm deep, the acrylic about the same. The overall thickness of the acrylic is about 3mm, the wood was laser cut to size, and is almost 1cm thick.
Looking into some interesting new projects with this machine, now that I've focused things up and got it running well. Still learning how certain materials react to it, but it will definitely be an awesome new tool to have in addition to the 3D printer.
Category Photography / Miscellaneous
Species Unspecified / Any
Size 1024 x 681px
File Size 209.5 kB
FYI - standard 70% isopropyl alcohol will quickly remove all of the blow-back fume smudging you're getting near the cut edges. Adding a small fan to blow across the work-surface when lasering will also greatly assist in reducing the depositing - it will keep the vaporized plastic moving out to the exhaust stream rather than hanging around and re-condensing. :D
Cool on the fan arrangement - that's exactly what I did! Added a fan to help push things out to the exhaust of the system. You may also want to play with the air flow-rate out the lens nozzle, as putting a LOT of air through it (as opposed to the fish-tank-pump flow that many of the systems have) can help assist the cut by cooling the edge more and preventing melting beyond the kerf. Also, if you are attempting to cut thicker materials you will want a longer focal-length lens - I can easily go through 3/4" acrylic without much problem with a 100mm. If you don't have one of these or if you just need high-quality replacement lenses and mirrors for the IR stuff, let me know - I can get you the hook-up for the best price (for US made optics) that you'll find. Unfortunately a lot of the Chinese optics are really cheap. :\
And absolutely on the cell-cast stuff with regard to whitening on the engrave. McMaster Carr stock cell-cast it at fairly-decent prices if you wanted a quick order for some. You may also want to check out Johnston Plastics as they have a lot of different colors and varieties available. Worst case I can always stick some scrap in a box here if you just want some to experiment with. :D
Happy lasering!!
And absolutely on the cell-cast stuff with regard to whitening on the engrave. McMaster Carr stock cell-cast it at fairly-decent prices if you wanted a quick order for some. You may also want to check out Johnston Plastics as they have a lot of different colors and varieties available. Worst case I can always stick some scrap in a box here if you just want some to experiment with. :D
Happy lasering!!
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