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Commits (2)
# 4. Computer controlled cutting
# Computer-controlled Cutting
This week I worked on defining my final project idea and started to getting used to the documentation process.
## **assignment for the week**
## Research
### **laser cutting**
*group assignment*
characterize your laser cutter's focus, power, speed, rate, kerf, and joint clearance
*individual assignment*
1. design, lasercut, and document a parametric press-fit construction kit, accounting for the lasercutter kerf, which can be assembled in multiple ways, and for extra credit include elements that aren't flat
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## **learning outcomes**
> "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
1. Demonstrate and describe parametric 2D modelling processes.
2. Identify and explain processes involved in using the laser cutter.
3. Develop, evaluate and construct the final prototype.
## Useful links
## **have i**
- [Jekyll](http://jekyll.org)
- [Google](http://google.com)
- [Markdown](https://en.wikipedia.org/wiki/Markdown)
1. Explained how I parametrically designed my files
2. Shown how I made my press-fit kit
3. Included my design files and photos of the finished project
## Code Example
---
Use the three backticks to separate code.
## **characterizing the laser cutter's focus, power, speed, rate, kerf, and joint clearance**
```
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}
This exercise was done as a group. Below are all design files generated (except for ThroughCutandFlexures.f3d, that was downloaded and modified) to perform various tests on the laser cutter.
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
```
([SpeedPower.f3d](../../designs/week4/SpeedPower.f3d))
([ShadeCard.f3d](../../designs/week4/ShadeCard.f3d))
([PressFitComb and Kerf.f3d](../../designs/week4/PressFitCombKerf.f3d))
([Thickness.f3d](../../designs/week4/Thickness.f3d))
([Thickness w Offset.f3d](../../designs/week4/ThicknesswOffset.f3d))
([ThroughCut and Flexures.f3d](../../designs/week4/ThroughCutandFlexures.f3d))
## Gallery
Point-wise summary of test cuts performed:
![](../images/sample-photo.jpg)
1. For 2 mm thick cardboard, optimum speed is 30-40 mm/s, and power is 30-40%.
2. For 6.42 mm thick cardboard, optimum speed is 30-40 mm/s, and power is 40-50%. Kerf for the same material is .52 mm.
## Video
## **individual assignment**
### From Vimeo
For this part, I decided to build to build a geodesic dome. I also wanted to make something with living hinges, and was looking for some inspiration. A former student from Fab Lab Barcelona had made a fruit bowl, and I liked it. I made my own design for the same in Fusion 360 and cut it in acrylic on the laser cutter. Here are my design files for both:
<iframe src="https://player.vimeo.com/video/10048961" width="640" height="480" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
<p><a href="https://vimeo.com/10048961">Sound Waves</a> from <a href="https://vimeo.com/radarboy">George Gally (Radarboy)</a> on <a href="https://vimeo.com">Vimeo</a>.</p>
### From Youtube
<iframe width="560" height="315" src="https://www.youtube.com/embed/jjNgJFemlC4" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
## 3D Models
<div class="sketchfab-embed-wrapper"><iframe width="640" height="480" src="https://sketchfab.com/models/658c8f8a2f3042c3ad7bdedd83f1c915/embed" frameborder="0" allow="autoplay; fullscreen; vr" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe>
<p style="font-size: 13px; font-weight: normal; margin: 5px; color: #4A4A4A;">
<a href="https://sketchfab.com/models/658c8f8a2f3042c3ad7bdedd83f1c915?utm_medium=embed&utm_source=website&utm_campaign=share-popup" target="_blank" style="font-weight: bold; color: #1CAAD9;">Dita&#39;s Gown</a>
by <a href="https://sketchfab.com/francisbitontistudio?utm_medium=embed&utm_source=website&utm_campaign=share-popup" target="_blank" style="font-weight: bold; color: #1CAAD9;">Francis Bitonti Studio</a>
on <a href="https://sketchfab.com?utm_medium=embed&utm_source=website&utm_campaign=share-popup" target="_blank" style="font-weight: bold; color: #1CAAD9;">Sketchfab</a>
</p>
</div>
([PartsGeodesicDome small.f3d](../../designs/week4/PartsGeodesicDomeSmall.f3d))
([LivingHingesFruitBowl v2.f3d](../../designs/week4/LivingHingesFruitBowlv2.f3d))
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