Really trying to fine tune the X table, getting a tiny line at the splits, at the end of each split, whether running horizontal, vertical, or diagonal, the end of the split burns deeper then the start. If it was just horizontal I would think end TC, but that wouldn’t affect the entire line running vertical. Stretched it out to separate the start and end and really get a good look.
Overlap: tried zero to a couple line widths. Made it worse.
It just burns extra deep at the end of each slice, not end of each line.
One more photo, it is actually burning a line at the end of each slice. This blowup shows pretty clear a vertical line was added at the end of the slice.
I usually am the one with the answers when it comes to the rotary axis, I have ran through timing and delay, stretched and shrunk the circumference. added and subtracted the steps. Tried adding a little overlap. What I am coming up with the laser isn’t adding a line, but it sure is reproducing the effect of running an extra line.
So this is where I’m at, my steps/ diameter are fine. 192000 steps / 600mm circumference, microstep driver set at 6400. Cross direction is real sensitive to circumference divided by steps, just like a ring or a cup. I can nail that. But parallel where the ends of the scans line up I have to override the timing by increasing the start TC, like change from -75 to + 125, and also increasing the end TC from like 0 to +25. Bi directional works a little better kind of interlaces the ends. For 30 degree and 45 degree hatch I think I need a slightly different set of TC’s. Haven’t gotten those dialed in yet. For deep engraving really nice to run multiple directions. Also haven’t messed with the delay, might slow that down for some testing.
All this is moot if the artwork allows for “Run Whole Shapes” , which is pretty much only limited by the lens field size. Every shape is it’s own split. That is where the X table will really shine.
Something else I noticed, split sizes 5mm to 75 mm not much time difference, a machete length piece with steel engraving parameters 1900mm/s, 75% power, 45KHz, LI 0.0249mm, 200 Qpulse, ran about 6 min at 50-75mm splits, 7 min at 5mm. 1 hr at 0.05mm. Really drops off when the motor starts and stops every 2 lines. Motor gets pretty hot also. 1 microstep is 0.003mm+/- with my setup.
So to do a rotating scan/ deep engrave and not end up with the overlapping line effect, probably need 3 different sublayers, one for zero, one for 45, and one for 90. each with different TC overrides. No cross hatch on the 0 or 90. Bi OK
Also, never messed with this. might try to see what it does. I would think it’s the same as delay, but Before? After?
I read the directions. They pause the next sublayer or the current sub layer for a little time. Nice feature, you could use it to know where in the sequence you were at, or give yourself a second or 2 to hit pause or stop. Nothing to do with my woes however!
