< <br>
2. [FabAcademy Kannai 2022](https://fabacademy.org/2022/labs/kannai/Weekly_Group_Assignments/week05/) <br>
3. [FabAcademy Nadieh 2021](http://fabacademy.org/2021/labs/waag/students/nadieh-bremer/blog/week-5/) <br>
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## Task I. Test Design Rules for Ender 3 v2
### The Machine - Ender 3 V2
<img src="https://www.creality3dofficial.com/files/goods/ender-3-V2-01.jpg" width="480" />
<p><strong>Technical Specifications (</strong>Ender-3 V2 FDM 3D Printer Properties)</p>
| Technical Specification | Details |
|-------------------------|-----------------------------------|
| Modeling Technology | FDM（Fused Deposition Modeling） |
| Printing Size | 220x220x250mm |
| Filament | PLA/TPU/PETG |
| Working Mode | Online or SD card offline |
| Supported OS | MAC/Windows10 |
| Filament Diameter | 1.75mm |
| Slicing Software | PrusaSlicer/Cura |
| Machine Size | 475x470x620mm |
| Product Weight | 7.8KG |
| Package Weight | 9.6KG |
| Power Supply | Input AC 230V; Output DC 24V 270W |
| Layer Thickness | 0.1-0.4mm |
| Print Precision | ±0.1mm |
| Hotbed Temperature | ≤100° |
----------------------------------------
### Design Limitations Test
<img src="https://cdn.thingiverse.com/renders/f7/1a/f0/ef/41/977cb044104b7f4fc925bdf426fb52db_preview_featured.jpg" width="480" />
The part was sliced with Cura 4.12 and Ender 3 V2's default slicer profile.
<img src="./ctrlv_test.jpg" width="720" />
Picture above is the Torture test designed by ctrlV and posted in [Thingiverse.](https://www.thingiverse.com/thing:1363023)
We 3D printed the part and below are our findings.
Below is picture of our 3D printed part after removing some stringing.
<img src="./Curve.jpeg" width="480" />
<img src="./Pointy.jpeg" width="480" />
<img src="./ScrewPrint.jpeg" width="480" />
<img src="./ThinWalls.jpeg" width="480" />
<br><br>
<p><strong>Our Findings (</strong>Ender-3 V2 FDM 3D Printer Properties)</p>
| Name | Technical Specifications |
|---------------------------------------|----------------------------------------------|
| M3 & M4 Nut | Our nut fit. |
| Wave | rounded print |
| Star | Sharp Edges looks distinct |
| Bridge Print | Looks good up to 16 mm print |
| Overhang | Looks good up to 70° |
| Warp | No warpping |
| Z Height | 0.1mm may not be printed well. 0.2mm is good |
| Minimum Distance between walls | >0.4mm will have good prints |
| Print Precision according to specs | ±0.1mm |
| Hotbed Temperature according to specs | ≤100° |
]]>