Post by davew215 on May 1, 2017 18:34:08 GMT
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wanted to give the program Halftoner (http://jasondorie.com/page_cnc.html) a try, so I made three 5.5" x 6" dog pictures. I was originally planning on doing a dots pattern and only making one, but the dots pattern that I liked took a long time (1hour+), and the first job didn't look great. I wasn't going to wait 1+ hours each job to perfect a dots pattern, so I switched to a lines pattern.
I probably did about 20-25 incomplete runs before I figured out what I liked. I first used a 60 degree V groove bit, then tried a 45 degree, 01.mm engraving bit. Both bits worked about the same, although I think the 60 degree V groove had less tear-out.
I learned that no matter what the Halftoner settings are, it's always best to start off with very, very shallow cuts (like barely touching the paint and hovering over spots). If the cuts looked too deep in the first 30 seconds, then I would cancel the job, re-zero the z axis at a shallower depth, then start the job over. I would run a job (each job took about 14 minutes), then re-run the job with the machine zeroed at a slightly deeper z axis (0.1mm to 0.2mm). The x and y axis stayed the same between jobs.
Afterwards, I cut the edges to remove the spray paint, masked the painted area, then stained the exposed wood.
Still need to spray some lacquer to protect scratching the paint. Not sure if they'll be hung or interchangeable on a stand.
I probably did about 20-25 incomplete runs before I figured out what I liked. I first used a 60 degree V groove bit, then tried a 45 degree, 01.mm engraving bit. Both bits worked about the same, although I think the 60 degree V groove had less tear-out.
I learned that no matter what the Halftoner settings are, it's always best to start off with very, very shallow cuts (like barely touching the paint and hovering over spots). If the cuts looked too deep in the first 30 seconds, then I would cancel the job, re-zero the z axis at a shallower depth, then start the job over. I would run a job (each job took about 14 minutes), then re-run the job with the machine zeroed at a slightly deeper z axis (0.1mm to 0.2mm). The x and y axis stayed the same between jobs.
Afterwards, I cut the edges to remove the spray paint, masked the painted area, then stained the exposed wood.
Still need to spray some lacquer to protect scratching the paint. Not sure if they'll be hung or interchangeable on a stand.
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