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Parallel Port breakout boards, motherboards, and dedicated accessories / Limit/estop switch wiring; coolant pump suggestions
« on: August 05, 2016, 08:01:33 PM »
Hey all! I have a Microkinetics CNC retrofit kit on a BP clone mill, and I went PMDX to avoid their proprietary software in favor of Mach 3, which I'm already familiar with on a CNC plasma table.
On my plasma, I used these switches for home switches, so that I could square the gantry which has the Y & A axis slaved to each other. http://sensing.honeywell.com/BZ-2RW822-A2-Premium-Large-Basic-Switches
I bought 6 of them for the mill, hoping they're the right ones for the PMDX board. Will be using them for X Y & Z limit switches. I'm confused I guess on how to wire, it sounds like everything will be in series, run in an NC config, and when I hit the limit of travel for any axis, all 3 motors will hault? Or? I'm lost at the logic, on the plasma each switch went to a seperate spot on a board in the control box, but they were for homing of course. I guess what I'm asking is, how does the machine act when any of the switches are triggered?
Is the Estop tied into this same circuit, too? or is it stand-alone? Ahh sorry I just can't wrap my head around it haha
Lastly, for a coolant pump, I'm curious if you have a model of pump that you can point me to?
That's all for now, thanks so much for the help I'm so close to making chips, and am very excited!
Landon
On my plasma, I used these switches for home switches, so that I could square the gantry which has the Y & A axis slaved to each other. http://sensing.honeywell.com/BZ-2RW822-A2-Premium-Large-Basic-Switches
I bought 6 of them for the mill, hoping they're the right ones for the PMDX board. Will be using them for X Y & Z limit switches. I'm confused I guess on how to wire, it sounds like everything will be in series, run in an NC config, and when I hit the limit of travel for any axis, all 3 motors will hault? Or? I'm lost at the logic, on the plasma each switch went to a seperate spot on a board in the control box, but they were for homing of course. I guess what I'm asking is, how does the machine act when any of the switches are triggered?
Is the Estop tied into this same circuit, too? or is it stand-alone? Ahh sorry I just can't wrap my head around it haha
Lastly, for a coolant pump, I'm curious if you have a model of pump that you can point me to?
That's all for now, thanks so much for the help I'm so close to making chips, and am very excited!
Landon