Bridge and Overhang Mashup
thingiverse
This is a test print and demo showcasing the limitations that arise from unsupported overhangs and bridges. Students can use this as a demonstration to understand the constraints of FDM printing and design. This is a remix of https://www.thingiverse.com/thing:40382 and https://www.thingiverse.com/thing:2593077 Print one without supports to visualize what happens when overhangs exceed 45 degrees. Then, print a second with supports extending from the build plate to illustrate the difference supports can make. Be sure to highlight that supports will leave a rough surface, increase production time and material costs. If you have a dual extruder, demonstrate how water-soluble supports work by orienting the overhang side towards your printer's cooling fans for optimal results. I combined these two models in TinkerCAD.
With this file you will be able to print Bridge and Overhang Mashup with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Bridge and Overhang Mashup.