After a year’s work designing, building, scrapping, redesigning, building, and working through software and firmware issues, the MegaMax 3D printer is now functional. It has some common 3D printing issues like printed objects peeling up off the glass printbed. Tweaked settings in Slic3r, ABS “juice”, and Aquanet hairspray have all been tested with moderate success in attempts to improve adhesion to the printbed. Finally, have_blue gave me a block of foam out of the Stratasys printer to try out and it seems to work better than the other methods and doesn’t require heating the bed! Further experiments to be conducted post-haste.
More info on this project can be found here: http://wiki.milwaukeemakerspace.org/projects/megamax_3d_printer
MegaMax printing on foam from Stratasys printer.
The video shows the last few layers of the calibration cube “printing” at 414% speed (according to my LCD display).
The Bucketworks 3D printing meet-up on 8/12 paid off big-time! Gary Kramlich helped me debug a problem that was preventing me from flashing the firmware on the controller board for the MegaMax 3D printer. After a few tweaks I was able to get it moving.
MegaMax 3D printer based on MendelMax but bigger and minus plastic parts.
This is my on-going project at the Milwaukee Makerspace. It is a 3D extruded plastic printer with about 1 cuft build envelope. I want to print life-size human skulls (among other things) from CT scan data. The printer is made mostly from salvaged parts and materials so the cost has been very low. When it’s finished it will have a heated 12″x12″ bed (13″x13″ if I can find an aluminum plate that big) and dual extruder so it can print in two colors.
I have learned a lot on this project- some things that work and others that don’t work so well, and how to use a milling machine to drill holes precisely and square the ends of the 8020 extrusion pieces used to build up the frame of the machine.
I could not have done any of this without access to the people, materials, and tools at Milwaukee Makerspace. Every time I go there to do some work on this project someone says something that gives me new ideas for improvements to the design. I frequently find materials and parts left for me on the machine’s cart by other members who know what I’m trying to do. If you have a project idea find your local Makerspace and get busy- there is nothing that will get your creative juices flowing like being around a bunch of people with similar interests and different skills and experience!