Haas UMC-750 post mod for C unwind (to not unwind really)

[mikenaturalice]

I am hoping someone here maybe knows where to look for this. The UMC has an option (which is turned on in my machine, I checked already) to not unwind the C axis, but to go to the closest position to take it home and ignore all the extra revolutions. The catch is that the code has to be posted as "G91 G28 C0.", not the G53 C0. that the post now outputs. I have asked my reseller and he is looking into it, but I thought I would ask here in case someone has already done this. Here is a bit of sample code and what I want to do - 

 

(this was the last few lines before the M01 and tool change)

X.0068 Z-.5852 C-5310.214 (this takes a little while to unwind to C0, trying to avoid this)

Z-.5229

Z5.0251 F600.

X.0075 Y2.017 Z5.3715

X.0083 Y2.217 Z5.7179

Z6.

G187

G49

M05

G00 G53 Z0. M09 (safe Z move to clear tool away from part and table)

G53 Y0. (safe Y move to get tool back away from rotary table)

M11

M13

G53 B0. (original code has C0. On this line)

G91 G28 C0. (NEW PROPOSED LINE OF CODE, AFTER THE G53 B0. IS POSTED)

M01

 

Any help would be appreciated. 

[Colin Gilchrist]

Look for the post block 'protretinc'. That should be where your G53 C0. move is coming from.

[mikenaturalice]

I could not find that Colin. I did see there is a whole lot that I don't understand with this post so I am just going to wait for my reseller to get it done for me. 

[Claudiu]

Hey Mike,

I have some problem with Haas UMC 750SS.

It is possible to make the exchange of post

I have mastercam X7.

[Guest]

Really not cool to show up and as a first post ask someone for their post...

 

If you need a post contact your reseller. That is where you should be asking