This is a system of parts to convert the MakerGear M2 to use the Flexion extruder combined with the E3D-V6 hot end. The system will allow printing of very soft flexible materials using the Flexion extruder on the M2.
The mounting bracket was machined out of aluminum and perforated with 6.35 mm holes to minimize weight and the maximize rigidity. I believe the bracket could be successfully printed out of a variety of hard materials with similar results.
- The bed fan rotates to permit easy removal/exchange and inspection of E3D hot ends.
- The clamp part also holds and ducts the E3D fan eliminating E3D's fragile duct.
- 25 and 30 mm long socket head screws are required to assemble the bed fan and motor/clamp.
- All parts except the mounting bracket were printed from PETG at .20 mm.
- All parts required drilling, tapping or sanding to some degree to allow for proper fits.
- The clamp part also features magnets to hold a dial indicator for bed leveling (not shown) without the need for any disassembly.
- The M2 extruder motor must be replaced with NEMA 17, 1.8°, stepper motor with a minimum torque rating of 0.2 N.m
- the "E" stepper value in the firmware will need to be changed to approximately 100 and adjusted accordingly.
- The MakerGear wire harness box was modified to attach to the the motor retainer.
- The motor retainer holds the motor in position when the clamp is removed.
This modification to the M2 required substantial design time and expertise. I would not recommend it for novice printers. The primary motivation was the ability to print 60A TPU's and greatly enhance the capabilities of the M2. Enjoy!
This was designed in IronCad and rendered in Keyshot.