Difference between revisions of "Team:Aachen/Integrated Practices"
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Revision as of 16:17, 19 October 2016
Integrated Practices
We have also taken into account the needs and thoughts of the public to improve our project.
Dark Bench
Idea
Our project forced us to grapple with the inconvenience of having to handle chemicals that are destroyed, when exposed to too much light. The laboratory, that was kindly made available for us, is located in a building with a glass front and many people work there with us. Working protected from light without causing us or others inconveniences seemed impossible. That is how the idea for the “Dark Bench” emerged.
The most important questions we asked ourselves and others working with light sensitive materials were: Does our design really constitute an advantage opposed to the usual solutions like aluminum foil and cardboard? And: Can we make it affordable?
Design
The Dark bench is a light controlled space which facilitates the handling of the photo-sensitive caged amino acids. It is entirely made using laser-cut parts and readily available resources to make it a Do-It-Yourself and inexpensive device. As all the parts are assembled with help of angles and hinges, the Dark bench can be dismantled and assembled with little effort.
It´s features comprise:
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Click here for detailed information.
Cost Calculation
That was Dr. Mishlers concern, when he gave us some feedback to the design of our model. At first he seemed to be interested in our Hardware part, but was skeptical if having the advantages would be worth the price. We estimated the costs to build one darkbench at about 200 $.
Detailed calculation.
| Component | Specifications | Quantity | Costs* [€/piece] |
Costs* [$/piece] |
Final* [€] |
Final* [$] |
|---|---|---|---|---|---|---|
| Opaque plexiglas 4mm | 50X100 cm | 5 | 22.45 | 24.63 | 112.25 | 123.15 |
| Transparent plexiglas 3mm | 25X50 cm | 1 | 7.5 | 8.23 | 7.5 | 8.23 |
| Screws | M3X10 | 155 | 0.05 | 0.05 | 7.75 | 7.75 |
| Screws | M3X16 | 10 | 0.08 | 0.09 | 0.8 | 0.9 |
| Screws | M3X20 | 25 | 0.09 | 0.10 | 2.25 | 2.5 |
| Washer | 3.2mm | 200 | 0.02 | 0.02 | 4 | 4 |
| Angles | 3X3X3cm | 18 | 0.41 | 0.45 | 7.38 | 8.1 |
| Hinges | 4X2.5cm | 18 | 0.82 | 0.90 | 14.76 | 16.2 |
| Door Knob | - | 1 | 2.39 | 2.62 | 2.39 | 2.62 |
| Long sleeve gloves | - | 1 | 1.69 | 1.85 | 1.69 | 1.85 |
| Adhesive | - | 1 | 1.05 | 1.15 | 1.05 | 1.15 |
| Cable ties and Mounts | 1.9X1.9cm | 1 | 2.29 | 2.51 | 2.29 | 2.51 |
| Foam Rubber sheet 3mm | 10X60cm | 1 | 1.13 | 1.24 | 1.13 | 1.24 |
| Foam rubber Sheet 6mm | 30X30cm | 1 | 1.71 | 1.88 | 1.71 | 1.88 |
| Plastic Sheet | 50X100cm | 1 | 1.25 | 1.37 | 1.25 | 1.37 |
| UV foil | blocks λ<540 nm, 50X30cm |
1 | 3.87 | 4.25 | 3.87 | 4.25 |
| Neodymium cube magnets | 4X4X4mm | 2 | 0.29 | 0.32 | 0.58 | 0.64 |
| LED Strips | 625 nm, 150 cm, 12V, 2.7W |
1 | 1.47 | 1.61 | 1.47 | 1.61 |
| Regulated Power Supply | 12V, 600mA | 1 | 9.35 | 10.26 | 9.35 | 10.26 |
| Switch | 1A | 1 | 1 | 1.10 | 1 | 1.10 |
| Total* | 184.47 | 202.37 |
Assembly
| LIPs Stick Steps to build your own LIPs Stick |
Conclusion
We are very content with the design of our “Dark Bench”. We think it is convenient to work with and can help avoid production of unnecessary waste.
The manual for building the “Dark Bench” can be downloaded here.
