April 16, 2019 at 5:18 pm #97273
I still haven’t finished everything to my liking but it’s working amazingly well. Thanks to the people on this forum and Ryan for all the help getting me setup.
I made some custom endstops even though I’m not really using them.
And I’m already cutting aluminum, I plan to add some extra legs to help support the long spans.
Now that I have a fan, anyone know how I can increase the motor current? I searched but didn’t find anything that didn’t involve compiling new firmware. I’d like the motors to have a little more torque cutting aluminum and not lose steps.
1 user thanked author for this post.April 16, 2019 at 5:21 pm #97281
If you’re running a rambo you’ll have to recompile I believe. Also, careful you don’t get the motors too warm, you’ll soften the mounts.
Also, fan needs to blow on the bottom of the board. The stepper drivers use the board as a heat sync, not the top of the chips.April 16, 2019 at 5:26 pm #97283
Barry, thanks for the information. Good thing I have a CNC to make another bracket!April 16, 2019 at 6:59 pm #97290
Jeffeb3ParticipantApril 17, 2019 at 5:18 am #97340
Thanks for the information! I didn’t lose steps on this cut (extremely small depth of cut), but on some previous attempts I did and the results seem to compound catastrophically.April 17, 2019 at 8:37 am #97364
Proper chipload is more likely the cause of the missed steps. Do some faster wood testing, if you do not skips steps it is just CAM. Aluminum is very picky and has a tiny window of proper settings. Believe it or not a bigger chip (to a point) is easier on the tool and machine. Without knowing any specifics I would bet this is it.
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