This bag is made of one part that is replicated, similar to a press fit kit. So, there are 4 unique parts for the front of the bag (three joints and one baguette), 1 part for the bottom (just a 1.5” strip), 2 parts for the side (a strip that goes from 1.5” to 1” and a 1” strip), and 3 parts for the back (joint for the top, circle, panel). I exported it as a 3mf file.
I prefer designing the bag in prusa directly so I can see it on the bed and I can visualize more easily how things lay together and adjust the infill. I began by repeating the baguette to get a bag shape
I copy and pasted the individual parts and assembled them to get the first part of the bag. The baguettes have gyroid infill, 20% fill. The joints have grid infill, 35%. The bottom has gyroid infill, 25%. I toggled between the 3d editor and the slicer preview. I left a little bit of space between each element (i’ll adhere them later with filament).
Before printing, I went back and forth between fusion and prusa to make new parts or to redesign different elements.
All of the 3mf files can be found here: https://drive.google.com/drive/folders/1N3q5ilvxWNeDZKo1Efyb5A1D7tSQpDR1?usp=sharing
This is a final view of the parts before printing.
I exported the prusa file as gcode and printed it on a 3d printer. I used a flexible filament to give the impression of fabric (i went with overture tpu).
To make use of the bed, I did three prints: one with the front and bottom, one with the sides/handle, one with the back.
First, I cleaned up the pieces of the bag. Sometimes 3d printing, especially with flexible filament, creates ugly little strands. I used a soldering iron to clean them up.
Second, I made sure the individual parts of the bag were welded together. The elements of the front were printed together but not joined, so I used a soldering iron to weld them together.
Third, I attached the parts to each other. The adhering mechanism for this bag is using heat to create seams. I needed a directed, high heat source so I used a soldering iron. I put pieces together and had the soldering iron glide over the perimeter. It doesn’t require much pressure or time.
The plastic appears to be only self adherent so I don’t think it hurt the soldering iron.
I attached the bottom to the sides, then I attached the front to the bottom. Then, I attached the front to the sides. Then I attached the back to the sides. Then I closed the sides to create a loop/bag handle.
3d scanning my face
I scanned my head using the scanner in the SEC
group assignment
we made a test using a design from thingaverse
