Front Derailleur |
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| The front derailleur was less complicated than the rear one, but it still had multiple pieces to complete the assembly. | |
8-1a
8-1b |
The center piece was made of a
laminated plastic sheet. The top side was left uncut, until all the
other sides were made. I drilled three holes, and I cut and opened
the slit. Then, I trimmed the outline to
the final shape.
Finally, the top side was cut with a hobby knife as shown in Photo 8-1b.
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8-2a |
The chain guide was made with plastic
sheet as shown. Again, the slit was cut open first, and then, the
outline was cut. Instead of following the final outline, I left a margin around
it and carefully filed to the final shape.
8-2b |
8-3 |
The slider rod was made of metal
pipe and pipe spring. It didn't have to be functional, so all the
pieces were glued together.
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8-4 |
This is the right side view of the finished derailleur. |
8-5 |
This is the left view of the derailleur. White parts were all made with plastic sheet. Chrome part is plated brass rod, and gray part is a very fine pipe spring. |
8-6 |
This is the left rear quarter view. |
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Next part is the seat, and I'll explain how to make a shell part like it by the heat-and-smash method. |
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