Wednesday, April 8, 2015

Interstellar TARS Model Project Interim Report - 5 (Experiment Log)

Interstellar TARS Model Project
Interim Report - V Experiment Log

Object--to report all procedures and results of past experiments done.

I. Introduction
As mentioned from the last report, I decided to write an experiment log with detailed explanations. I made at least three same experiments for each experiment log to increased the credibility and accuracy. If the experiment log resulted in failure, then it is most likely to be a failure.

Yes, I will find a way. [2]
II. Experiment Log
< Experiment 1 >
Procedure: Place each different tape on aluminum and burn the line for the surface of the tape. Then, spray paint with corresponding paints.

Typical multi-purpose black spray paint + Black electrical tape
Typical multi-purpose black spray paint + Cheap white-yellow masking tape

Results: Black electrical tape did not leave any glue on the aluminum surface after the laser cut. However, black spray paint peeled off as remaining parts of the tape were removed. On the other hand but similarly, the cheap white-yellow masking tape did leave some glue on the surface and was peeled off as the remaining parts were removed.

< Experiment 2 >
I realized the need of professional masking tape for this experiment. I used to make plastic models (or plamodel if you prefer) a long times ago. I know the feeling of the real high-quality masking tape which was made in Japan. I looked for such tape in Wal-mart and found this Frog tape masking tape. The touch was the exactly same feeling as the one I used before.

Procedure: Place the Frog tape: Delicate Surface on an aluminum surface and burn the line for the surface of the tape. Then, spray paint with corresponding paints.

Frogtape + Typical multi-purpose black spray paint + Paint finisher
Frog tape  Paint finisher + Typical multi-purpose black spray paint

Fig. 1. A few paints are not working for the aluminum [1]
Results:
The spray paint still pilled off along with the tape as I try to remove the tapes.
When I spray painted after the paint finisher, the paint even did not work.

< Experiment 3 >
Procedure: Place the Frogtape: Delicate Surface on aluminum surface and burn the line for the surface of the tape. Then, color or fill the lines with Sharpie markers

Frogtape + Typical multi-purpose black Sharpie
Frogtape + Typical multi-purpose black spray paint


Fig. 2. Black Sharpie [1]
Fig. 3. Black Spray Paint [1]
Results:
- At least some of the black lines remained on the surface. However, the lines were unclear and dirty.
- Not good at all. I did this experiment previously. But, to compare and contrast, another experiment was necessary.

< Experiment 4 >
There was no problem at all with the aluminum surface or the masking tape. But the problem was the paint! I went to the autoshop and bought spray paints that are used for vehicle's surfaces--since they are made of aluminum. I purchased two different kinds of spray paints: Gray Self-etching spray primer and Black Sand-able auto primer.

Procedure: Place the Frogtape: Delicate Surface on aluminum surface and burn the line for the surface of the tape. Then, spray paint with corresponding paints.

Frogtape + Self-Etching spray primer
Frogtape + Sand-able auto primer
Frogtape + Self-Etching spray primer + Sand-able auto primer
Frogtape + Self-Etching spray primer + Black Sharpie Marker

Fig. 4. Too thick layers made it hard to identify or pill off masking tapes [1]
Results:
Results are listed in the same order:
- Successful for only relatively big parts. Very thin and delicate lines still pilled off along the tape.
- Somewhat successful for only relatively big parts. Paints came off along with tapes
- Unsuccessful. Too thick layer made the entire tapes to stick together; lines of tapes were almost impossible to identify and hard to pill off.
- Somewhat successful for only relatively big parts. Primer merged with the black marker even though the primer was completely dry.

< Experiment 5 >
I bought a thing called aluminum coating which helps spray paint to stay on the surface of aluminum. This one is transparent and used for painting a car.

Procedure: Place the Frogtape: Delicate Surface on aluminum surface and burn the line for the surface of the tape. Then, color with markers and spray paint with corresponding paints.

Coated aluminum plate + Frogtape + Self-Etching spray primer + Sand-able auto primer
Coated aluminum plate + Frogtape + Self-Etching spray primer + Black Sharpie Marker
Coated aluminum plate + Frogtape + Black Sharpie Marker

Fig. 5. Clearly finished work. But with too thick layers.
This one is the one with primer and black marker. [1]
Results:
- Somewhat successful. Too thick layers
- Successful for only relatively big parts. Very thin and delicate lines still pilled off along the tape.
- Disastrous. The marker melted down.

< Experiment 6>
While coated aluminum was partially successful compared to all other experiments I did so far, the results were still not so satisfying. Thus, now I tried to change the color of the aluminum surface not the giving another layer over it.

Procedure: First, put at least three layers of Frogtape on aluminum panel. Laser cut the lines where I want them to be black. Then, proceed with changing colour.

Frogtape + Anodization (Makes aluminum black)

Fig. 6. The Best Result One Can Expect. Absolutely Clean. [1]
Results:
- Extremely successful. The line cuts were accurate and straight. Some glues left on the plate while removing masking tapes though. However, the results were outstanding!

Conclusion
It cost tremendous amount of finance for this experiment--not grant though. I do not regret though. I learned a lot and truly enjoyed the experiments. Now, I am turning into Massive Production Step, using the latest experiment result.

More reports are expected once Neodymium Magnets arrive.Thank you for keeping with all reports.

All experiments were done by me, and I have all the rights reserved.

Reference
Unless separately mentioned,
- [1] Hosung Won @ All rights reserved. All pictures and researches in this post were made and done by Hosung Won
- [2] https://pbs.twimg.com/media/BuC6chuCcAMRckz.jpg