I have a Longmill 30x30 with a SLB-EXT controller and the CLSM’s and 1.5 KW spindle. My SLB-EXT controller is bad. Scienci is closed until Tuesday so they won’t even start to process the replacement until Tuesday and it probably won’t ship until Thursday or Friday. Shipping to the US means I won’t get the replacement controller until next week sometime. I the meantime I want to go back to the SLB I received with my Longmill. My question is can I replace the SLB-EXT with the SLB I received with the Longmill and not cause any damage to the SLB. The power supply for the SLB-EXT is I believe 48 volts while the power supply for the SLB is 24 volts. If I’m not mistaken the 48 volt power supply is for the CLSM’s. I don’t think I would have to swap out the power supply but want to make sure before I do anything. I’ve had the Longmill for about a month and haven’t had a chance to carve anything with setting it up, adding the CLSM’s and 1.5 KW spindle. I would like to try to go back to the SLB with a Mikita router until the replacement SLB-EXT arrives so I can carve something. I wanted to carve something for my wife for Valentine’s Day but couldn’t. I have her birthday coming up in a few weeks and would like to carve something for that. Any input is greatly appreciated.
@rtr The SLB will not connect to the closed loop steppers - other than A axis if you have it. I don’t know about using the 48v power supply with the SLB, but I can’t think that it’s a good idea. It doesn’t matter, really, as you can’t run those motors with the SLB.
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The SLB-EXT does not have any motor drivers on the board. It is also a 48v board. The standard SLB has the motor drivers on it and is a 24v board. You can not use the standard SLB to drive the closed loop motors. If you plugged in the 48v power supply to it you will end up with 2 bad control boards. Your only recourse if you cannot wait is to revert your machine to the open loop motors and the standard SLB along with its appropriate power supply.
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