[Cura 5.3.1 prints came out larger than actual design.]

4 hours ago, GregValiant said:

"...how to fix the print came out not square"  

That is a printer problem.  if the "X" and "Y" axis are not exactly "perpendicular / 90° / Square" then the "Y" bed trolley is running crooked to the "X".

Everything starts with a calibrated frame.  You need a carpenters tri-square and a long-enough steel straightedge

I checked with a 8 inch Square and it seems square.  Right now I will do trial and error by lifting two opposite corners up and print until it's square.

[Cura 5.3.1 prints came out larger than actual design.]

hmm I wanted to mark GregViliant's response as solution but somehow it marked mine. Sorry, nop

[Cura 5.3.1 prints came out larger than actual design.]

GregValiant,

 

Thank you.  I had the Shrinkage/Scale set to 110%, which explains the 10% increase, I think.  I will have to reprint to confirm this after figuring out how to fix the print came out not square. I was trying to fix the wall line separation problem and I thought increase it by 10% helps the wall line overlap each other.

[Cura 5.3.1 prints came out larger than actual design.]

I created a square (suposedly square) of 5" with a 4" center hole.  Cura produces a 5.49" square with 4.46" hole.  Is there anything in the setting I can adjust this?  I was using older version and I don't remember having this problem.