Ok this project has been a nightmare.  I just wanted a mouse trap built into a bucket lid for a 2-gallon lowes or home depot bucket.  I based the design off other walk the plank mouse traps and modeled it all from the ground up with my own tweeks.  I added extra thickness to the back of the plank to make it tip later and reset better, I added a ladder holder built in, designed a print in place hindged ladder to go with it, and added a bait holder.

Then when it was all done it was 1% too small even though the test prints worked!! And the ladder kept fusing together.  

So here are my print recommendations:

Trap: print in PETG so it doesnt warp.  No supports or brim.  print at 101% scale

Trap floor: print in PETG. Print at 101% scale. no support

Ladder: print in ABS (PETG kept fusing the hinge together for me).  100% scale. no support

OR

Print the whole thing in pla if you arent putting it outside.

I can post the fusion file if anyone wants them.