5. 3D Scanning and Printing¶
Group Assignment¶
exploring and testing printers¶
We started by exploring the 3D printers available in the lab and testing their capabilities. To evaluate their design accuracy, we created a 3D test model to assess:
- Size accuracy
- Bridge performance
- Fine details
- Overall precision
Here are images for our 3d design using SolidWorks:
This model was printed on the Prusa MK3S+:
And this one was printed on the Ultimaker S5:
Both prints demonstrated excellent quality and precision.
1. Prusa MK3S+ Printer¶
Key Features: - Uses Fused Deposition Modeling (FDM) technology - High print accuracy and reliability - Removable flexible print bed for easy part removal - Open-source hardware and software - Supports a wide range of filament materials
Before printing, we performed a calibration wizard to ensure everything was functioning correctly.
Design and Tolerance Testing: We used a test file (called the “XYZ CUBE” model) to evaluate the tolerance of each axis. After printing the test file, we identified an issue where the printer was burping excess filament at the tip of each layer.
The test results showed strong performance in overhang and bridge tests, indicating the printer’s excellent precision. With proper calibration and material selection, the Prusa MK3S+ delivers high-quality, reliable prints.
2. Ultimaker S5 Printer¶
We moved on to the Ultimaker S5, which has a dual extruder setup for multicolor printing.
The Ultimaker S5 is a high-performance FDM 3D printer with impressive features, including: - Large build volume - Dual extrusion for multi-material prints - Heated print bed for improved adhesion - Compatibility with various filament types (PLA, ABS, TPU, etc.)
Slicing and Printing Process¶
We used Ultimaker Cura for slicing, which offers: - A powerful slicing engine - Extensive material profiles - Customizable print settings - Seamless integration with Ultimaker printers
3. Formlabs SLA Printer¶
The Formlabs SLA printer uses Stereolithography (SLA) technology, where a laser cures liquid resin layer by layer to create high-detail prints.
Key Features: - Extremely high-resolution prints - Smooth surface finishes - Ideal for functional prototypes and intricate designs - Wide range of resin materials for different applications
her’s the test model for SLA FormLabs printer, we used PreForm 3d printing software
Post-Processing Steps¶
After printing, the material undergoes several post-processing steps to finalize the print: 1. The printed part is first submerged in isopropyl alcohol (IPA) for 5 minutes to remove excess resin. 2. The part is then cured under UV light to harden the material and achieve its final mechanical properties.
This printer is particularly useful for detailed miniatures, jewelry design, and medical models, where precision is crucial.
Files