Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: arboleda4 on April 15, 2010, 12:23:28 PM

Title: Fit a MPG to lathe and mill
Post by: arboleda4 on April 15, 2010, 12:23:28 PM
Is it possible to fit an a MPG to a Wabeco mill and lathe through Mach3
Title: Re: Fit a MPG to lathe and mill
Post by: Hood on April 15, 2010, 05:56:08 PM
Yes, just need two spare inputs :)
Hood
Title: Re: Fit a MPG to lathe and mill
Post by: RICH on April 15, 2010, 06:35:04 PM
The trouble is, once you have them, you will wonder how you ever did without them.  ;)
RICH
Title: Re: Fit a MPG to lathe and mill
Post by: arboleda4 on April 16, 2010, 02:42:59 AM
Great but how do you wire them up etc
Title: Re: Fit a MPG to lathe and mill
Post by: derekbpcnc on April 16, 2010, 03:13:47 AM
Hi ,

I have an Orac and Colchester I intend fitting MPGs too.
I will fit 2 hand wheels so that it can be operated like a manual machine..but "fly by wire"

For the additional inputs required I have a Pokeys expension board (my Parallel port BOB has not enough spare IP)

I'll wire the quadrature o/p from the encoders to the Pokeys board then configure Mach / pokeys to do the clever stuf.

One thing here - I hope the pokeys firmware is fixed to accept the high pulse rate from a "whizzing" handwheel !
From the informationon the "pokey thread on this Mach forum" its looking good so time to see for myself.

ATB
Derek
Title: Re: Fit a MPG to lathe and mill
Post by: Hood on April 16, 2010, 03:45:30 AM
Great but how do you wire them up etc

If you are using the parallel port then all you do is connect the A channel to one spare input pin and the B to another and if possible take the power for the MPG from your breakout board as well. Then all you do is go to Config menu, Ports and Pins then Encoder/MPG page and set MPG1 up to the port and pin numbers you have chosen for your A and B channels. You can then go to the Functions Config menu and Calibrate MPG and go through the steps there, remembering to save before you exit.

Hood