Re-Upload: Japica Printrbot Base

Originally uploaded by Japica under GPL
I noticed that these files have disappeared too when [lux linutz](http://www.thingiverse.com/Lux_Linutz/) reuploaded the JapicaBot files. Since I'm currently adding them to my Printrbot I thought I reupload them as well so they are not lost.
The foot part is my own design, ony useful if you don't mount the Y-motor to the base (I use the alternative y-motor mount in the center between the base parts).