its not a calibration issue, the part is too big. I measured the part with calipers and my print is accurate but i also measured the holes and the part is about half a mm too big on both sides. The legs on this part from top to bottom are sized at 28mm the size of the holes are 27.25mm. Originally i was sanding it to make it fit but the further i pushed it into the holes the more stress it put on the acrylic plate until it cracked.
I resized the part based on my measurements but i haven't tested it yet, If it fits correctly ill upload a remix.