Hi everyone, I just upgraded my controller to RDC-6445g. Everything seems to work as expected except for the limit switches.
My laser only has 2, one on the X and one on the Y. On the left side of the X axis it will stop when it hits the limit switch. But the other side it allows it to go further than the 1300mm breadth, smashing into the gantry
So far I’ve set the bed size (1300x900mm) and calibrated the X and Y axes using the 100mm square method
You say you’ve calibrated, but it goes beyond your 1300. The two don’t go together. Look at your controller screen and note the distance, now move it say 500mm physically. Does the screen agree? Or does it go negative instead of positive? Does it think it’s only went 300mm instead of 500mm?
Thanks Dave I will do the cross checking tonight. The first cut I did of a 100x100 graph, it cut 56x59mm. After “calibration” a 100x100 graph cuts exactly 100x100. Will check the screen and measure physical distance and report back!
machine will cut 100x100 square perfectly, but when i move it 500mm on controller, it moves ~556mm physically.
if I change the X step length to the same as the Y step, the controller says 1300 and measures 1300 physically, but the 100x100 square is 91 on x and 100 on y.
Okay, in your vendor setting, you have a little box next to step length with three dots. Click on that. That brings up the calculate window. Graph length is the measured length on the screen ( what it’s supposed to be ), measuring length is the actual measured movement / cut. Enter your two numbers and hit OK. Your X and Y will have different steps, no big deal.
Retest to double check, you will most likely be off a hair still. put your numbers in again and retest. If you were WAY out on the first go round you may need to go through a third time, but twice will generally do it.
Your step calculations are best done with as large a square as possible. For you, get some old wrapping paper or something like that and cut a square that just fits inside the paper as a test. For my 500 x 700 bed I cut a 490 x 690 square. While you’re at it, run a skew test as well. For the skew test, put a dashed line down the center of that square, and then fold the paper on that line. If the corners match, you’re good. If they don’t, that’s your skew error.
