Elements of 3D Printing poster makes an excellent teaching tool that allows students to see the various settings that go into making a great 3D print!
***A special thank you to Tasker Smith and MIT's Pappalardo Lab (The most WICKED lab on campus) for the inspiration for this poster. @PappalardoLab
Overview and Background
The "Essentials of 3D Printing" poster is used as a feature in your Makerspace, Fablab, or classroom. This teaching tool allows students to learn about the various settings that go into printing a model. The .STL files can be attached to the poster using glue or even velcro tape allowing for students to interact with the parts while choosing how to print their models. Following the procedures outlines below this poster can be printed, and changed to meet your individual printers settings.
*This poster was specifically designed around using a Makerbot Replicator with the Smart Extruder+. If you are using a different printer your print times and material usage will vary slightly but the understanding of what the various settings do remains the same.
Lesson Plan and Activity
The poster was designed to be printed at the standard poster size of 18" x 24" with each of the print files fitting in the 2"x 2" squares. If you choose to print the poster smaller or larger you will also need to change the print sizes accordingly.
Depending on how you are wanting to have the poster viewed it might require you to put a stiff backing behind it. In the picture above the poster was glued onto some leftover student poster board.
If you have a Makerbot Replicator 5th Gen. or a Makerbot Replicator+ running the Smart Extruder+ you can download all of the pre-sliced .makerbot files below from the linked Google Drive folder. For printing these files you only need to add them to your USB stick and print directly from your printer.
Makerbot Replicator w/ Smart Extruder https://goo.gl/fR2tRd
Makerbot Replicator+ w/ Smart Extruder https://goo.gl/tpw1jO
(If you would like additional printers added to this list please leave a note in the comments)
All of the prints require some work within the "Custom" settings menu of either the Makerbot Desktop software or their latest Makerbot Print software. For these instructions Makerbot Print will be used.
For the part density files they are all printed with 2 shells, which is the default setting, but you will need to change both the part density, and roof thickness setting. For each of the differing density you will need to change the infill density setting while keeping the roof thickness setting set at 0mm. The roof thickness setting allows you to see into the part so that the infill density can be viewed. (Image 1)
Each of the shell files will be printed with 0% infill, 0mm roof thickness and vary the shell count accordingly for each print. (Image 2)
Since differences in layer height can be best shown on curvy or organic models, the .STL file is topography of the rocky mountains. This file was created using the website Terrain 2 .STL which can be found at http://jthatch.com/Terrain2STL/. For the Layer height models you will need to make sure that you change back the infill to 5-10% and the roof thickness back to .8mm, and change the layer height accordingly for each model. (Image 3)
For this model all that is needed is to choose the support setting for the print. After the print is done you will want to leave the support on the model for the display. (Image 4)
No changes to the print settings are needed for this model. Just leave the raft on the model for the display.