I’m adding a cable chain to control the wire for the x-axis stepper motor. I’d like to anchor it to the lead screw nut bracket near the back of the motor. Can someone tell me what the bolt pattern is for that bracket? I can’t measure it very well in place and I’d prefer not to disassemble the lead screw setup to measure it more exactly. I figure the Langmuir guys ought to have that info available in their blueprints.