Definately a scrapyard challenge

[motoxy]

Next update. Its now a rolling y chassis. The mounting plates above the x bearings will be cut down to size after i know where the ballnut bracket will be located. It does not look much since last time but I must have drilled and tapped 50 or so holes.
If all the limit switches are connected in series would it make sense to mount them all on this gantry as this would mean only one cable going from the gantry to the control box?

[JAZZCNC]

If all the limit switches are connected in series would it make sense to mount them all on this gantry as this would mean only one cable going from the gantry to the control box?

Yes With a bit of care and planning it's possible to use just 1 switch for each axis all wired in series. Doing it this way then yes it's possible to mount them all on the gantry.
Basicly you need some kind of ramp or bracket either end of each axis to trip the switches.

Confession time now bruce I forgot to do what I've got to do.!!! . . . Will do it ASAP promise. .

[motoxy]

Jazz there is no rush.

I take it that these switches are homing at one end and limit at the other? Or are homing switches separate?

You will notice that i am entering another area of simple and possibly obvious questions. YOU HAVE BEEN WARNED!

Looks like Michael is nearly ready to start on my z plate. Once that happens then hopefully there will be another lurch forward.

Hugs and kisses

Bruce

[JAZZCNC]

I take it that these switches are homing at one end and limit at the other? Or are homing switches separate?

NO for limit switch's to be any use then you need the switch to be tripped either end. Often 2 switch's are used per axis mounted static at either end but a single switch per axis can be used if fastened and travels on each axis then triggered by use of a ramp or bracket if mechanical. Optical or proximity type switch's are also good for this type of application as the can be triggered by static magnets etc.

Home switch's can be either separate or the limit switchs can be used as double duty. Mach3 knows the difference between when the switch is triggered as limit or home.!
Basicly the switch is always treated as a limit while the machine is working but then when told to home temporely disables the switch as a limit and treats the switch as a home switch then when finished homing goes back to being a limit switch.