New material testing on a syringe 3-D printer
|By Michigan Tech's Open Sustainability Technology Lab.
Wanted: Students to make a distributed future with solar-powered open-source 3-D printing.
- Same as with operation of syringe printer
Equipment or Bill of Materials
- Syringe-style 3D printer
Operation & Procedure
- Before you start to get an idea of what you need to do for finding the right print settings - read this carefully - Woern, A.L.; Byard, D.J.; Oakley, R.B.; Fiedler, M.J.; Snabes, S.L.; Pearce, J.M. Fused Particle Fabrication 3-D Printing: Recycled Materials’ Optimization and Mechanical Properties. Materials 2018, 11, 1413. doi: https://doi.org/10.3390/ma11081413
- Do a mini lit /web search to find the default settings for your base plastic as a rough guess on temp -along with your recyclebot experience if you have any making pellets with the pelletizer.
- Load your syringe with the material. Look for a minimum temperature that it will extrude out manually by adjusting the temperature and pushing manually with your hand through the syringe. At the "right" temp - you will see the plastic come out of the nozzle - the exact width of the nozzle hole (e.g. no thin, weird curling, etc.)
- For speed start with some of the default settings under the advanced menu in Lulzbot Cura for the same/similar base polymer- if you have a completely new polymer start at the max speed for your printer and work down.
- Make the following prints using the STLs in this project (https://osf.io/f4rh9/ ) (note you will need to adjust the sizes of these based on the printer you have - these are for the GigabotX, please send the files you use to be uploaded to the OSF to Dr. Pearce for other printers):
- line/liness to get right T and speed
- vase - test wall thickness with calipers
- cube - test x, y, z with calipers
- 5X ASTM D638 Type 4 standard tensile bars.