Hi guys- can anyone help this newbie?

I have built a 5 axis machine- it is for dispensing 2 chemicals into hundreds of little vials. I use the x-y-z commands to position my dispensing tips to the top of each vial.

Now is the tricky part.

I have 2 pumps controlled by stepper motors for the "A" and "B" axis. I tell them to rotate 6 revolutions to dispense the correct amount of liquid.

Now here is the trouble- I have to keep incrementing the pumps by 6 with every dispense. Does anybody know any way to "resent" the "A" or "B" axis references back to zero each time? That way it will dispense correctly and I don't have to add "6" to each event (it's hundreds of lines long.)

Any help would be greatly appreciated!

Mark

Use G91 Incremental Mode for the pump motors.
or ...
Could run the pumps in a macro...
 G91 A-B dispense, then back to G90 for the x-y-z moves.
Just a thought,
Russ

YEP just run the dispense function in INC mode.

(;-) TP

AWESOME- this works GREAT! THANK YOU VERY MUCH!!