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| Material | Properties |
|---|---|
| PLA (polylactic acid) | Excellent surface quality and detail. Mechanical and heat properties not suitable for some applications |
| ABS (acrylonitrile butadiene styrene) | Strong, ductile material with wear resistance and heat tolerance |
| Nylon (polyamide) | Strong yet flexible, with good chemical, impact, and abrasion resistance |
| PETG (polyethylene terephthalate glycol-modified) | Good toughness and wear resistance, with chemical resistance against many industrial fluids. |
| CPE (copolyester) | Durable and flexible with a glossy finish and good impact and heat resistance |
| PC (polycarbonate) | Strong and tough material with heat resistance up to 110 °C |
| TPU (thermoplastic polyurethane) | Flexible material with rubber-like properties. Provides high impact and wear resistance |
| PP (polypropylene) | Durable, tough, and fatigue resistant. Retains shape after torsion, bending, or flexing |
| PVA (polyvinyl alcohol) | Water-soluble material used to create supports for overhangs and cavities |
source: What is FFF 3D printing? - UltiMaker
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The following is some introduction of Bambu support filaments:
Types of support filaments | Support W, i.e. Support for PLA | Support for PLA/PETG | Support G, i.e. Support for PA/PET | |
Types of body filaments that are compatible | PLA, PLA-CF, etc. | PLA, PLA-CF, PETG, PETG-CF, etc. | PLA, PLA-CF, PETG, PETG-CF, etc. | PA, PA-CF/GF, PA6-CF/GF, PAHT-CF/GF, PET-CF/GF, etc. |
Characteristics | 1. Easy to remove; 2. High surface quality; 3. Insensitive to moisture, and not strict with drying and moisture proofing | 1. Water-soluble, and suitable for those models that are not convenient to remove with hands and tools; 2. Easy to remove; 3. High surface quality; 4. Sensitive to moisture, and very strict with drying and moisture proofing. 5. Please refer to this wiki before use: PVA Printing Guide. | 1. Easy to remove; 2. High surface quality; 3. Sensitive to moisture, and very strict with drying and moisture proofing. | |
Recommended settings | 1. In most printing cases, it‘s recommended to print the support interfaces with support filaments, and print the support bases with body filaments, so that a lot printing time can be saved. 2. In some special printing cases, it's able to print both the support interfaces and the support bases, i.e. the whole support structures, with support filaments. However, it may leads to bad printing results when it comes to support structures that are thin and tall and deforming or falling during printing. | |||
*Bambu only have 1 nozzle, the following picture just for showing we can use support material for support part in FDM printing. Bambu is able to switch material on same layer by using AMS.
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Orientation
View file name Task1.3mf height 250 Instruction:
Submit a Screen capture of the whole window, and a .gcode.3mf file with sliced models in Bambu studio. The orientation MUST need to be fixed so that it doesn't need any support in order to print the objects.Submission required:
a. Add heading "Task 1" before your attachments.
b. One modified .gcode.3mf file
c. One screen capture of the Sliced View showing support option enable but no support generated with correct orientation of the objects (Whole window screen capture in Preview session).Sense of selecting support
Decide which is the best printing orientation by adding the support.
Original File:
View file name Task2.3mf height 250
Correct answer: (support should be less than 0.5g)Instruction:
Submit a Screen capture of the whole window, and a .gcode.3mf file with sliced models in Bambu studio. Must use tree(auto) support mode, and need to select an extra option for the support, the best orientation should be less than 0.5g support. The surface of the bolt pattern is functional, so it must remain smooth, and must keep the original shape after printing.
Submission required:
a. Add heading "Task 2" before your attachments.
b. One modified .gcode.3mf file
c. One screen capture of the Sliced View showing support option enable and selected tree(auto) mode with option selected (Whole window screen capture in Preview session).Spherical print
Instruction:
Find a 3d model on the internet, with spherical structure.
Look at Variable Layer Height | Bambu Lab Wiki for reference, apply variable layer height to your 3d model, you can use either adaptive or smooth. Apply suitable support structure as well (depends on your 3d model).
Screen capture the sliced view with color scheme as "Layer Height" just like the following picture.
Submission required:
a. Add heading "Task 3" before your attachments.
b. One modified .gcode.3mf file
c. one screen capture of the Sliced View showing the color scheme as "layer height", with suitable support structure apply to the sliced 3d model (Whole window screen capture in Preview session).Hole Tightness
View file name signal-2025-02-02-220739_003.mp4 height 250 
Provided Material:
View file name Task3Base.stp height 250 Instruction:
Model Total Printing time MUST be within 1 hour (including preparation time). Submit a Screen capture of the whole window, and a .gcode.3mf file with sliced models in Bambu studio. You should use the Task3Base.stl as the base, and draw the other missing parts by yourself. Remember you need to also add two M2 hole in the base model, and the holes must not be too loose (Tips: if the hole diameter is exactly 2mm, it will be too tight for the M2 bolt), and cut it in half by using dovetail cut. Each group should submit 1 set, each person should make 1 hanging piece.
For the base:
The following captures do not have M2 holes, please add it yourself
You need to use "Cut" function in bambu studio and choose "Dovetail" to cut it in half.
Please see Cut Tool | Bambu Lab Wiki as reference.
(MUST be this orientation, and width should be 3mm)
(You should print the base in this orientation to maintain the dovetail shape during printing)
For the hanging piece:
it can be whatever shape, as long as the bottom is pointed and can pass through the V-shape hole in the base. You should also design an icon (can be on either side, but better at the same side with your groupmates) on your hanging piece. It MUST have a tight D-hole to passthrough the hanging piece (for D-shaft), it means the hanging piece will not shake sideways when rotating the D-shaft.Submission required:
a. Add heading "Task 4" before your attachments.
b. One modified .gcode.3mf file
c. One screen capture of the Sliced View WITH Total printing time and Model printing time shown (Whole window screen capture in Preview session). If there's support, capture should show support section.
d. One screen capture and one .stl file of your own hanging piece.
e. One .mp4 demonstration video: PRINT your file using the self service 3d printers in V104 according to your group assigned timeslot. Assemble all the parts with D-shaft and two M2 bolts. Take a video, you should spin the D-shaft so that all the hanging pieces are rotating 360 degrees and passthrough the V-holes in the base at least 3 times.
f. Your group number
g. All your groupmates Student ID and English FULL name (not the nickname).
(Although this is group task, everyone should also submit the same files in their own submission page as well, including .gcode.3mf file, screen capture, .mp4 videos, don't let one member submit it, your marks will be deducted if I don't see those files in your Task 4 submission)
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