part Z too big with raft

[totallynotarobot 0]

ender 3 using a 0.6mm nozzle PLA. raft air gap is 0.3mm. layer height is 0.4mm. initial layer height is 0.4mm I am using a raft. the bottom of the part fails a dimension check in the z. looks like cura 4.5 is adding material to the bottom of the part. not sure why that would be a feature. the part is 0.44mm too big but it could be as bad as 0.64mm. I can't be sure with how I am testing and the range of values on the part. my x dimensions are matching with each other. my z dimension looks perfect on the top of the part. I think I need to find a way to add a setting or a script in software that will let me compensate to remove 0.44mm from the bottom of the part at the top of the raft.

 

I can write a script if you point me to some documentation for developers.

0.6raft.curaprofile