I've been using Mach 3 for 4 years and I really like the control it gives me over my machine. I have just purchased a Basic 24 X 24 model and would like to continue to use Mach and not have to relearn how to run my machine. Can anyone point me to information that actually shows what wires in the 26 pin and 7 pin plugs on the machine go to what machine functions? The manual has a nice diagram but the information is useless. I'm trying to find out which pins on which plug are for the proximity sensors and for the Z axis touch off puck. I have the stepper motors covered so don't need that information. Any and all information gratefully appreciated.
Your Z axis touch off puck will connect to "one of" the wires on the spindle and it likely won't be black...not where the puck plugs into the gantry...all that is for is to ground the circuit. Once you "think" you've found it, you can disconnect it and then "set Z axis" (from maximum Z height) while holding the puck WELL above the spoilboard. Use a small cheap twist drill bit for this process. If the Z motion stops when it contacts the puck, you've found the right wire. If it doesn't, then QUICKLY hit your E-Stop to keep from burying the bit in your spoilboard. Obviously you're going to have to disconnect wires from plugs in this process, so make sure you have a way of "putting them back". You can "bridge" unplugged pin sockets with small pieces of wire and alligator clips if you're temporarily unplugging them for tracing purposes.
Tracing the wires and following the colors from the proximity sensors ought to be pretty simple, since they are all exposed. Just turn off the machine and get out your multimeter and start looking for continuity. Take pictures of wiring harnesses BEFORE you start pulling plugs apart. My machine has servo motors, but each motor wiring harness is tagged as to which axis it goes to (your mileage may vary).
I wouldn't really expect much in the way of "assistance" in this from the Axiom admins. Just as I am disavowing any responsibility for you messing up using my "minimal" advice, they won't really be interested in taking on any liability for what might result from your hack/backyard mod. Be aware that you could fry a controller board if you screw up here.
Thanks Johnb. Nope, not much help from Axiom, although they were willing to sell me the machine without the controller and steppers which was a big win as far as I was concerned. Gave me a substantial discount for taking the stuff out too. I will be using my existing steppers and controller so that part is not an issue. I'm good with tracing wires and checking for continuity. I've been doing stuff like this for a very long time (I'm pretty old) Not worried about frying a controller either.
I appreciate your willingness to weigh in. Do you have any idea if the proximity switches are all in series or parallel?
Post by Axiom Tool Group on Jul 29, 2019 7:46:30 GMT -5
All the sensors, have three wires...power, ground and signal.
These I believe should all be wired completely. separate from one another.
Unfortunately, as for the wiring diagram...not much to be done other than use a continuity method to ohm out the individual wires. The pin out diagrams in the manual will show each of the stepper motor connections and the on board powered outlet (if used) for the router motor.
The sensors are using the X1, X2 and X3 for signal wires...which should be pins 17, 18 and 19...however, power/ground for these sensors may be shared from pin 25 and 26.