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Week 5 - 3D Printing and Scanning: Evan, Ryan, Alana

group assignment: - test the design rules for your 3D printer(s) - Document your work on the group work page and reflect on your individual page what you learned about characteristics of your printer(s)

Torture Test Bambu X1 Carbon Print - Evan Park

Before I was able to use the X1 Carbon, I downloaded the Bambu Studio Software I then took the torture test and uploaded it into Bambu Studio and sliced the plate and exported it as a .3mf file. The X1 Carbon takes microSD cards so I put the microSD card into my computer and put the file on there. I then put the microSD card into the X1 Carbon then hit print. On the file menu. I got this error though that the cutter was stuck.

After researching for this problem, I found this article. I realized with the help of Mr.Budzichowski that the cutter actually wasn’t stuck and that I can ignore the error.

I then preceded to print my torture test.

What I failed to notice was that the first layer of the print would be centered as it was in Bambu Studio so the print came out really messy.

I looked at Bambu Studio to see if there was a problem with my slicing by looking layer by layer to see if there was a problem with the first layer and the layers after that but it seemed to be normal.

Mr.Budzichowski decided to have me send over the zip file I got off of ThingyVerse and have him slice it. This time when it was printed, it worked. We came to the conclusion that it must have been file corruption when exporting from my Bambu Studio.

Testing the Design Rules for our 3D Printer

The printer we used is the Bambu Lab 3D printer.

We used this An All In One 3D Printer test. We first downloaded the file, imported it into PrusaSlicer, scaled it to the size we wanted (3.54” x 3.54” x 1.07”), set the infill to 15%, and selected “none” for supports. We then clicked “Export G-code” and saved the file. We then opened OctoPrint, clicked “Upload,” selected the file, and then clicked “Upload and Print” to send the file to the 3D printer.

Angle

The print for angles 10°, 15°, and 20°. The first compromise in print quality was the line between the numbers not connected for angles 30° and 40°. Next, the top of the degree symbol merged with the filament above for the 45° angle. For the 50° angle, the material between the numbers merged with the material around the number. The 60° angle has divots in the material surrounding it. The 70°, 75°, and 80° angles are barely readable.

Overhang

The print quality was good for angles 10°, 15°, 20°, 30°, 40°, 45°, and 50°. The 60° angle overhang drooped down on the bottom and divots down on the top. The 70° overhang is very uneven and is not a smoothly curved surface. The print material is also more rigid. The 75° overhang is more evenly distributed in shape compared to the 70° overhang, but the material is more rigid and chompy. The 80° overhang is not smooth or properly shaped and the filament is starting to droop unevenly.

Bridging

The overhang for 2, 5, 10, 15, and 20 mm were all good. The 25 mm overhang, however, started to droop down a little, but still successfully printed.

Wall Thickness

The subtractive walls were all fairly poor in quality except for the biggest one. The additive walls, however, all came out well. The 10, 20, and 30 mm walls are all slightly curved on the edges but overall have good rectangles in shape and the print material is good all over.

Dimensions

The larger dimensions printed generally print better and more precisely than the smaller dimensions. 4, 6, and 8 mm diameter holes print well. 4, 3, and 2 mm rectangles also print well but the corners are more rounded.

Anisotropy

The 3D print quality is best in the X direction (left to right), slightly less good in the Y direction (up and down), and the worst in the Z direction (front to back).

Surface Finish

Shapes that are subtracted from the material around them turn out more smooth in surface compared to shapes made additively that have a more rigid surface.

Accuracy of Dimensions

For each dimension the print is about 0.1-0.2 mm off from the dimension.

References:

All In One 3D Printer tes by majda107 - Thingiverse

Validating Isotropy in SLA 3D Printing | Formlabs

Downloads

Download all files for our group project here


Last update: February 29, 2024