About this 3D model
This is a modification of the parametric carriage upper for mendel. It was modified so a BfB Hot-end will fit into it. This part will mate with: http://www.thingiverse.com/thing:3017 For a fitting extruder look at: http://www.thingiverse.com/thing:3015 You can also find more info on this on: http://ifeelbeta.de/index.php/production/wades-extruder-with-bfb-hot-end