GS24 - Wont cut in a straight line.

[stewart_little]

GS24 - Wont cut in a straight line.
See below cut layout. Issue I am having is the side to side seems to cut fine. Its the feed that cuts curved. (my image below is exaggerated). Over this cut layout of 1m it would curve about 2mm
It seems quite consistent.
I did install the new GS24 driver yesterday (to fix the windows updates problems) which i doubt has caused it.
Ive replaced pinch rollers. I have removed the grip shaft and cleaned it. I have checked bearings and they appear ok.
I have tried new art files and cut from them. Different style boxes and sizes and same issue.
I have tried cutting using cut studio and versaworks. Both same issue.
Any idea where to from here?
Machine is about 10 years old and has done some miles! But its been cutting great. We consistently cut 3m long items and do not have an issue. Till now.
Appreciate any assistance.

 

[stewart_little]

Few more things I have tried:

I loaded a piece into the machine. Turned the machine off. Then yanked on the RH side (looking at it). Then yanked on the LH side. What I found was it slid in the RH side roller much easier than LH side.

I them changed the pinch rollers again. With another set I had. Still no different.

The rollers have been put in with the dots facing outwards

I then tried a couple of other blade holders and used a brand new cutting blade. I have a stack of different holders for different blades I use. Still same issue

 

[stewart_little]

Some more images showing the non straight cut. Starts off straight then ends up on the piss