Confused over home switches and limit switches

[adamfromscotland]

Hi i wanted to have Limits switches on all the Axis i already have installed 2 x on my Z Axis and they are the NPN Switches so thats good

i installed the NPN switches on the Z Axis but ive still to run cable to them and yes ive read the manual and also looked carefully at the schematics and zoomed in on them

But on the schematics i can only see the diagrams showing one x limit switch not two one for Z+ And one for Z-

[adamfromscotland]

Does this diagram look ok using just 3 x limit switches but are not on both sides only one side used for homing etc? and use soft limits as the safety limits etc

If i was to use 3 x NPN Switches? For the acorn CNC board?

[adamfromscotland]

Im sure this wiring is ok for one Limit/home switch for the X Axis, The part im confused over is if i was to wire in the rear NPN Switch, how is that done?

Im sure i know how to wire in One x Axis Limit switch but how is the 2ND Rear NPN switch wired in?

thanks

[adamfromscotland]

i may just do one x switch as you suggested Shaun

Thanks for your reply!

[ShawnM]

Remember when I said "This saves a bunch of switches, wiring and headaches." ???

Wire one "home/limit" switch at X negative (left side of the table), one at Y negative (front of the table) and one at Z positive (the top of travel) and your done. Why do you want to complicate the issue? And eat up all your valuable inputs with unneeded switches.

[ShawnM]

Does this diagram look ok using just 3 x limit switches but are not on both sides only one side used for homing etc? and use soft limits as the safety limits etc

If i was to use 3 x NPN Switches? For the acorn CNC board?


DCDC.jpg

Yes, this works perfectly. A single switch at X-, Y- and Z+