Spindle - Slide Sychronisation

[bobhare]

Clive
Thanks for the speedy reply and invitation. The latter i will willingly take up.
I've just completed a 3-axis router and this has limit switches on all axes and an emergency stop button. The limit switches are primarily used for homing but have the other useful function of minimising the risk of crashes. I'm rebuilding this for a friend who has the machining experience so i don't know whether homing switches are necessary. (The chaps name is Dave Forest and he may already have contacted you.) The ORAC has just one limit switch as original.
Based on your reply and reading part of the linux manual Pins 10 and 11 on the DB25 are used to provide feedback to the controller. I presume these are two of the input pins on the BOB.
I also presume that a device similar to this would provide the encoder signals?

Would this Friday be convenient to pay a visit?
Bob