Hmpf, getting more success and more frustration…
Did today 1000 mm/min, 26 passes, 0.4 mm gap (3:45 hrs). In most places, it is close to a success, but I am getting soot again. And in a few places something went utterly wrong and I burnt half the PCB thickness! Most likely I messed up something in the GCode while editing it, or it is a problem with Inline power…
What is really frustrating me is that the test squares with a wide range of parameters yielded excellent results, and now a single pass seems to change it from not enough to too much… I am missing something…
The good thing: the single flute flat end mill from Snapmaker does a nice and clean board cut. Here’s all three tries in a row:
Holding them against the light shows the differences:
And here’s my test squares held against the light:
You can see several squares that are perfect! Here are the parameters used for each square - left to right:
Top: 1500 mm/min, 30, 40, 45, 50 passes - gap - 2000 mm/min 40 and 50 passes - gap
Bottom: 1000 mm/min, 20, 25, 30, 35 passes, 500 mm/min, 10, 12, 15, 23 passes
Weekend over, not sure when I’ll have time for this again…
Btw.: Other experiences and tipps highly welcome!