Cobblebot dual extruder

This dual extruder holder was designed to be used on the Cobblebot but can most like be used on other printers. There are three m3 holes that secure the extruders together and 4 m4 holes for two 40mm fans. The models do not need any supports but could use a brim when printing. The V2b file is version 2 of the fan holder, It 5mm shorter in width.

Dual a and Dual 2b modified version of the ones above. The difference is the side mounted 40mm fans and the sensor mount. For Dual 2b there are supp