Filament Test Pieces

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To test out a filament I have created a few models to print in addition to some models that have already been created and posted here on Thingiverse. I am only uploading my models and will have links to the other models that I use. I wanted to start sharing more information about the filaments I use and what makes them special. To accomplish this I have come up with 5 material properties tests and 5 geometric tests that help fine-tune print settings and showcase what material properties each filament offers. All prints are printed with 2 perimeters and 25% infill Except the stiffness model. It is printed 2 perimeters 80% infill MATERIAL PROPERTIES TESTS (5) Layer Adhesion - Split model printed oriented standing up (T on buildplate). Force measured while pulling until failure. Yield Strength - Split model printed oriented laying on side (Yield on buildplate). Force measured while pulling until failure. Stiffness - Stiffness model held with vice and force vs angle displacement measured. Thermal Stability - Thermal model loaded in tension with heater cartridge in middle. Temperature is held for 2 minutes then measured for stretch before increasing temperature additional 5 degrees. Impact Resistance - Benchy model being hit with .25 gram airsoft pellets at 400 feet per second. http://bit.ly/2hdA9Ev GEOMETRY TESTS (5) Bridging - Make's bridge model is a great test for seeing a material's ability to stretch and to ensure your bridging settings are working. (http://www.thingiverse.com/thing:533472/#files) Small Feature - Make's Magazine fine positive feature model is a retraction stress test as it tests retraction and temperature settings. (http://www.thingiverse.com/thing:533472/#files) Overhang - Make's overhang model pushes the limits of any 3d printer with varying angles of an unsupported beam. A material that easily warps will not pass this test. (http://www.thingiverse.com/thing:533472/#files) Benchy - Because Benchy (http://www.thingiverse.com/thing:763622) Cellular Lamp - When scaled down to 75% this is a very hard print that demands filament to not warp, many retractions, has lots of small features, and everything is an overhang. The ultimate stress test. (http://www.thingiverse.com/thing:19104)

About the author:
NeatherBot
I am a mechanical engineer with a knack for making. 3D printing, quadcopters, drones, and arduinos are a few of my favorite things. I am the type of person that enjoys the process of designing and fabricating almost more than using the finished product. I often start projects just to learn how to do something. Always trying to broaden my skill set and learn more about how the world around me works.

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