About this 3D model

I made some changes to the AriTripper v3 extruder. I enalbled it to be mounted at the top of my mendel max. I also changed the m4 nut for a m4 rivet nut. Finally, i made it compatible with the 5:1 planetary geared stepper from phidgets. http://www.phidgets.com/products.php?category=23&product_id=3325_0 The only part that changed was the main body. everything else is the same. I'm using the TL hobbed gear with 8mm ID as it fits the motor shaft. If you want to mount two, i recommend printing the regular and mirrored version that i posted. Let me know if you have any questions. printed at .25mm layer height, 30% infill, 2 shells, no support.