Week 5: 3D Printing and Scanning¶
Week 5: 3D Printing and Scanning¶
Testing the printers¶
I went on to Thingiverse and chose the MICRO All In One 3D printer test as a print test. I printed the same model in the same size with 90% infill no supports, and smei-transparent PETG+ in different colors.
Each color represents was printed using a different printer and nozzle size.
| Color | Printer | Nozzle Size |
|---|---|---|
| RED | Original Prusa MINI | .04 Nozzle |
| GREEN | Original Prusa MINI | .06 Nozzle |
| BLUE | Original Prusa i3 MK3S | .08 Nozzle |
The creator of the test print has a hany guide and website to help you understand how the test works. Each part cirled represents a different aespect that the print is testing. Depending on how the print fails, it can show you what setting you may need to change such as speed, temerature, and fan speed.
The yellow rectangle is the stringing test. stringing is the thin, hair-like strands left behind when the nozzle moves from one point to another.
Red has some minor stringing.
Green has major stringing.
Blue has even more tringing than green.
The green circle is testing how well your machine can print out a sharp spike.
Red did very well. Both spikes are sharp.
Green did okay. Both spike are both there but they are not sharp. Lots of stringing and globbing near the tips.
Blue had major stringing issues, but less globbing issues than green.
The black circles represent the overhang test. The overhang is tested from 10° to 80°, in 5 degreee increments.
Red starts to fail at 75°.
Green starts to fail at 70°.
Blue starts to fail slightly at 20° and even more at 45°.
The purple circle is the bridging test. The bridging test is about learning how far your printer can make a line from one point to another without support. This tests bridge lengthes of 2mm, 5mm, 10mm, 15mm, 29mm, and 25mm.
Red did fine aide from the stringing. the 25mm bridge had a burn on it and there was a glob between the 25mm and 20mm bridge.
Green also had stringing issues, but all the bridges worked perfectly.
Blue had major stringing issues to the point that the srings created a small wall. Most bridges were fine, but the 20mm and 25mm bridges drooped a little in the middle.
Testing Summary¶
| Red | Green | Blue | |
|---|---|---|---|
| Stringing Test | Fail | Fail | Fail |
| Sharp Corners Test | Pass | Fail | Fail |
| Overhang Test | Fails at 75° | Fails at 70° | Fails at 20° |
| Bridging Test | Fails at 20mm | Pass | Fails at 20mm |
Files¶
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Source code hosted at gitlab.fabcloud.org