So your first run needs to be 5mm higher than the corner. You will find out where the high spots are and get a good idea of how much depth you are going to need to take off.įor example, if the middle is 5mm higher than your starting spot, then you’ll need to take off 5mm, at least. If you hit somewhere, raise it 1mm again and jog around. Then raise the bit 2mm and slowly jog around. It doesn’t have to be much, if you start with a fresh board and you have 4mm difference in Z, your first cut thinks it is at 0.5mm and 15mm/s, but ends up at 4.5mm and 15mm/s with a 25mm wide bit! Yikes. If you’re using repetier, you need to send G92 X0 Y0 Z0 and then send first thought was the same as Dui’s. In Marlin, there is an option in the screen for set origin. Be careful, because Estlcam will flash boards it can’t really handle if you ask it. ![]() ![]() This is using estlcam as a controller, which won’t work with Marlin. In Estlcam, after you have jogged the bit to where you want the job to start from you can zero X,Z and Z by sending the command Zero from the command line
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