Something weird happened on my blog’s server again today.
My hosting provider fixed it best they could… only lost the photos of the motor mounts post.
Will fix it tomorrow.
At least the forums are ok!
Morgan has gone through a lot of different takes on all of it parts over the design time, but none as many as the motor mounts. The new mounts are easy to print, and rock solid – no flexing.
Start by printing the files, and collecting he pieces required. Files on Morgan master get the mk5 motor mounts. You will need 2 to 4 M3x50 screws to attach each mount (may vary depending on the motors you have available: based on 47mm high motors.
In order to ease calibration a small change to the firmware was required. When issuing M36x commands, soft end-stops are disabled to permit movement of the arms into the calibration positions.
Never tell a hacker that something is impossible to do. This is the story of the RepRap Morgan, the journey towards personal rapid protoyping, and how dreams can be realized – by patience and a good dose of stubborn stupidity. It is also the cribnotes you need to fast-track builing your own Morgan
When: 15 February 2014 – 10:00 to 17:00
Where: House4Hack, 4 Burger Ave, Lyttleton Manor
Visit H4H to RSVP
House4Hack is proudly backing this event and will also showcase some other ventures:
1.75mm filaments are slowly becoming mainstream, due to the design choices of the commercial 3D printer manufacturers. That has recently caused me some long waiting times for 3mm filament, while 1.75mm rolls were stacked high…
Enter a reworked version of the ReprapPro mini extruder.
It is modified to use a 20mm M4 bolt in stead of the M3, with more readily available 624 bearings, and a new 10mm drive gear. The reason for the changes were that my 0.4mm nozzle started to block, but not enough to look blocked. This tripped up my airtripper, causing filament slippages, warps etc. I needed something that could cope with the pressure.
The drive gear is 10mm OD, 8mm long and tapped M4 in the center, with M6 hobbed wormgear on the one side of the barrel. I just edged off the two sides for it not to interfere with the sides of the 624 bearings.
This extruder managed to print past the blockage for an entire roll of filament. Of course, when I cleaned the nozzle, everything worked infinitely better, but in the end, I gained a foolproof 1.75mm extruder.
The stl files are added into the Morgan repository, but you can get the extruder sources here: