3D scanning and printing.

weekly schedule

Time block	Wed	Thu	Fri	Sat	Sun	Mon	Tue	Wed
Global class	3 h
Local class		1,5 h
Research
Design		2 h
Fabrication
Documentation
Review

overview

This week is all about additive manufacturing and 3D scanning. The main challenge is designing and printing an object that could not be easily made with subtractive methods (like CNC milling) — so the design needs to have features like overhangs, nested parts, or print-in-place mechanisms. On top of that, we also get to play with 3D scanning tools to digitize a real object.

learning objectives

• Understand the advantages and limitations of 3D printing compared to subtractive manufacturing.
• Apply design rules that take advantage of what additive manufacturing can do (overhangs, bridges, print-in-place, nested geometry).
• Learn how to prepare a model for printing: slicing, supports, infill, layer height and all the parameters that affect the result.
• Use 3D scanning technology to digitize a physical object and understand the clean-up process.

assignments

Individual assignment:

• Design, document and 3D print an object (small, few cm3, limited by printer time) that could not be easily made subtractively.
• 3D scan an object (and optionally print it).

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).

process

tab: Bambu Lab A1 Mini.

Spec	Value
Build volume	180 × 180 × 180 mm³		Chassis	Steel + extruded aluminum		Hot end	All-metal, max 300 °C		Nozzle (included)	0.4 mm stainless steel		Nozzle (optional)	0.2 / 0.6 / 0.8 mm		Filament diameter	1.75 mm		Filament cutter	Yes		Max speed	500 mm/s		Max acceleration	10,000 mm/s²		Max flow	28 mm³/s (ABS @ 280 °C)		Build plate	Textured PEI / Smooth PEI / Dual-Texture PEI		Max bed temp	80 °C		Ideal materials	PLA, PETG, TPU, PVA		Not recommended	ABS, ASA, PC, PA, carbon/glass fiber		Cooling	Closed-loop (part, hot end, MC board)		Camera	Up to 1080p, timelapse support		Sensors	Filament runout, odometry, tangle, power loss recovery		Display	2.4” IPS touch screen (320 × 240)		Connectivity	Wi-Fi (802.11 b/g/n), Bambu-Bus		Storage	Micro SD		Slicer	Bambu Studio (also supports PrusaSlicer, Cura, SuperSlicer)		Input voltage	100–240 VAC, 50/60 Hz		Max power	150 W		Dimensions	347 × 315 × 365 mm		Weight	5.5 kg

tab: Prusa MODELO

{/* TODO: add Prusa specs here /}

tab: end

Research

Design

Fabrication

Testing

Results

Reflection

Files

{/* Links to design files, code, etc. */}