I think the holiday make for a great time to tune a 3D printer. With kids running around and plenty of things to do around the house, it isn’t quite like watching grass grow. Now that I have my insulation back on and proper gears, I’m starting to turn up the speed and tweak the quality. Below you can see a cube printed at 100 micron as well as the fan duct I needed to design to help cool the PLA. This is getting very cool!
As if I needed another 3d printer, I’ve decided to start working on a Tantillus. A friend sent me the lasercut panels and I’ve gotten the rest of the vitamins from McMaster. Now I just need to print and assemble!
So the directions that come with the QU-BD nozzles are insufficient. Now I have a gooey mess and ruined insulation on two nozzles. Luckily I was able to readjust them how they should have been. This makes me really appreciate my MG hot ends.
Well, I can’t say its been a simple/quick/easy process with these extruders, but I’m finally getting my first multi-color prints. It a pain to ensure that the nozzles are equally spaced from the build platform and to tune their offset. Below you can see my tuning progression as well as my first really multi-color object, a die.
I’ve wanted to get to dual extruders for some time, but I just never got around to it on my prusa. There just didn’t seem to be any really good options. Recently QU-BD started selling a revision of the Makerbot MK7 extruder. I decided to get two of them and see what I could do. I had to build a mounting plate for the vertical rail car which seems to be working out well. I’m going to mill it out of aluminum once I get these nozzles working well.
I continue to tune the mmax to get the best results. Some of the examples below demonstrate the type of prints she is turning out. Some of them are really stunning.
I just completed the second prusa build at the HC in Nashville. We had 7 builders and everyone was printing cubes by 10 AM on Sunday. By noon they were printing objects. Its was awesome. The HC guys are fantastic as always. Special thanks to Mudflap for keeping us fueled, Smug for lending a hand, and ninja for printing mustaches 
