Hi. Just got my Lowrider 3 assembled, and I’m wanting to surface my spoilboard. I’m using the paid version of Fusion for my CAD/CAM, and a Jackpot v1 board with the MPCNC Post Processor v3. For full disclosure, I am a complete newbie to CAM, and the lowrider is my first foray into CNC. So please forgive me if my questions are remedial.
Is the SD card on the board safe to remove without powering down the machine? For instance, when I’m constantly having to go back and fix some dumb error I made in the program.
I keep getting two errors and an alarm when I try to run a 10 thou surfacing program. The first error is M84 S0 bad gcode. If I understand this correctly, this is a command to disable the steppers to move the tool head to the origin point. What should I do with this? I imagine I can’t just delete the line and send it on its way. But I also don’t think disabling the z steppers is a good idea as it’ll throw off tram and all that, right?
The second error it gives me just says 20 (Unsupported gcode command). Not even a clue what that means, but my guess is it’s referring back to the M84 thing?
The alarm I get says Alarm 17. Again, no clue what that means.
I’m interested in setting up the work space offsets, specifically so I can go directly to the 0,0 on my spoil board, or some other position I set (one of these days I want to add a bolt on rotary 4th axis to use for engraving stuff) like a tool change position. As I understand it, this is still in development, so I’m just adding my vote to the pile for it.
I can get screen shots of whatever is helpful, but I need to know what would be helpful first. Don’t want to just spam blast pictures of random stuff.
I do it with no problem, but it’s probably safer to power off. I usually hit restart the board after inserting it, but I have a bunch of ESP32s and am not really concerned with having to replace it. I don’t know what the official line is, but when in doubt, power it down before doing anything that touches the board.
I think you have the wrong post processor. That one is probably for the Marlin-based boards.
Well I got it going. Just had the post processor set for the wrong board. Thanks for the adult supervision!
It’s surfacing away happily. However, it has made a spindle trimming issue rather apparent. Gotta work out about a 0.01” lean over 1” in the y direction. And the gantry sags in the middle making about a 0.035” dip across the 49” MDF Sheet. Assuming the stiffening plates will help with that some once they’re made.