First attempts with a laser....

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First attempts with a laser....

Postby helensdad » Sun Oct 06, 2019 11:48 pm

Totoro Family.jpg
Celtic Knot.jpg
Mayan Calender.jpg
I finally got the post processor sorted for outputting files for the laser cutter. The maximum size on the Minimill is 120mm x 120mm so I will be transferring the laser module to my router for larger work. The toolpaths were created with Cut2D Quick engraving and a tool profile was set up for the laser. The results are encouraging. If anyone can suggest improvments, please do......
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Model of CNC Machine: Oozenest Ox 500 x 750/Openbuilds Minimil

Re: First attempts with a laser....

Postby TReischl » Tue Oct 08, 2019 1:45 pm

That is looking pretty darn good.

The slight surface smudging in corners is pretty normal for laser cutting on a mill type or router type machine. A very light hit with sandpaper usually removes it nicely. It is caused by the accel/decel needed on these machines. Dedicated laser cutters have extremely light heads so they can accel/decel much faster.

Looks really good to me as I said!

Want to have some really neat looking carvings? Carve a piece and then use the laser to highlight the edges, flat out makes a carving POP!
"If you see a good fight, get in it." Dr. Vernon Jones
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Re: First attempts with a laser....

Postby helensdad » Tue Oct 08, 2019 3:31 pm

Many thanks! Highlighting carvings sounds a bit advanced for me. I only have Cut2D which won't do 3D carving. I will upgrade as funds allow. Not having much luck actually cutting stuff out with the laser, are there any alternative post processors, I am using J_Tec one at the moment...
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Posts: 37
Joined: Thu Jun 06, 2019 4:54 pm
Model of CNC Machine: Oozenest Ox 500 x 750/Openbuilds Minimil

Re: First attempts with a laser....

Postby garylmast » Tue Oct 08, 2019 4:23 pm

Not having much luck actually cutting stuff out with the laser,


Really depends on the wattage of the laser. My first laser was a 25 watt, which was okay for light engraving, but sucked for everything else. I upgraded to a 400 watt, which will cut up to 3/4" thick, which I enjoy and use a lot. I also have a 60 watt, which will cut up to 5/32" with several passes.
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