Can anybody explain why my blue tumblers come out like this? I’ve spent days doing tests but when I finally burn the customers design, it does this. I can’t even put into words what it’s doing. All my testing for this particular cup landed on 100% power, 75 speed at 200 lines per second with air assist and the test comes out perfect but then I waste yet another cup on the final product. Is it the cup? Is it the vector image? To add, I cleaned my laser right before running this cup.
I’m running an xtool d1 pro 10w with the tumbler on the RA2 chuck because these cups bounce around too much on the rollers.
I have a 5.5 watt Ortur LM2 Pro and I run my tumblers at 55% pwr and 1500 mm/m, then clean up with LA Awesome and a Mr. Clean magic eraser. I think part of the problem is too much power combined with not enough speed. I also have my interval set to 0.10 (or 254 lpi if I remember correctly). It looks like you’re burning the metal a little.
Since you have one to play with now, create a 8mm x 8mm square. Play with speed / power. Burn, Clean, and look. If it’s a cleaning problem I use BLU as my degreaser for purples and blues of this nature. I can’t help you with the laser you have, but burn those small 8x8 squares. It eats up a lot of less real estate on your tumbler.
BTW, I do this on all my tumbler work. I take one of my sacrificial tumblers and run the 8x8 test to ensure I have my settings correct, even though I have them in my library I still test before using a good one for the job.
Your diode laser is a blue light - the blue paint causes some difference vs. the black or white tumblers.
My 10w ortur laser works at 2800 mm/m at 50% power, .1 spacing. Contrary to the mainstream opinion, I run my chuck rotary at 90 degree scan angel. Yes, the cup turns a whole lot, but I get better outcome from that main Y rotation vs. the main X at zero degrees. I also set my overscan to 4-5%. Your results may vary - test some of these ideas out and let us know how it works for you.
I did that on my first cup of the batch and anything under 100% power came out blue and didn’t burn off the powder coating. So then I playing with an the 100% power settings and landed on 75% as a perfect silver finish… Until I burn this image which as you can see, finished inconsistent with strange wavey lines.
