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| Green Twin Oscillator Cast/Build |
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| MetalCaster:
The design was eyeballed from the Preson Services photo, and turned out like this: |
| MetalCaster:
I tried my hand at making a pattern for the flywheel, but my equipment and pattern making skills were just not ready for that. A 3D print was dispatched, and it looked like this, made from the 3D design, and printed with the appropriate oversize for shrinkage. |
| doubleboost:
You have my attention Get on with it :lol: :lol: :lol: :lol: :lol: :lol: John |
| MetalCaster:
I was certain I could make the pattern for the base of the engine, and so I begain building one from balsa. The first pattern went rather badly, and so I had to redouble my efforts and really pay attention to detail. Here is my second attempt at the base pattern. It is a hybrid affair with some of it printed in 3D and some of it made from balsa. It was a parallel effort by two of us (the guy who originally decided he wanted to model the engine and myself). I was quite proud of this group-effort, and all seemed to be going fine.............. (Note: If you ever think things are going fine, just wait a little while and things will change.) |
| MetalCaster:
And the cylinder and some of the other parts were printed in various places around the world, and shipped in. The best 3D print was the flywheel, but I did not have to pay for that one. The cylinder and some of the other parts were made on an inferior 3D printer, and so lots of extra work to finish them (an ongoing process). |
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