So I am calibrating my X and y axis on my printrbot plus v2 my first photos are taken with my steps at 80.58 for X and y. As you can see the legs are to long my X is 10.5cm and my Y is 11cm. So I tried (80.58100)/105 for x now my X is 96mm. I also did (80.58100)/110 for y now it is 91mm. Please help.
The Plus has belt drives on both X and Y, so the only correct values for the X and Y steps/mm are the stock, ideal ones. The Prusa calculator helps you figure those out: http://calculator.josefprusa.cz
3D printers are never 100% accurate, but a calibrated extruder ( https://www.youtube.com/watch?v=YUPfBJz3I6Y&feature=youtu.be&hd=1 ) and a bit of fine-tuning in the slicer will get you pretty close.
Indeed, any over or under size is going to be down to the extruder, fudging X and Y will only probably throw E into more disarray.
One rotation of the pulley on X or Y will ALWAYS move the axis num_teeth_on_pulley * belt_pitch mm. These DO NOT, need calibrating, just keep the belts tight enough.