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| dsquire:
Ralph I've got a fresh bowl of popcorn here so I'll be along for the lessons as well. :D :D Cheers :beer: Don |
| flyingtractors1:
Progress is slow. The master wax pattern is placed in a flask (used a 10 oz soup can) The investment (plaster) is mixed in precise proportion. Then the molds are degasseg in a vacuum chamber on a shake table. And cured at room temperature then baked in incrementally higher temperature to solidify and to melt out the wax (lost wax) |
| flyingtractors1:
Now while the mold has been in the oven, I found time to work on other essential parts - the nuts and bolts of it all. Three sets will be needed. I could have purchased these components commercially; in fact, I do have some on hand - 2-56 threads at 1/2 inch long. But I am after an authentic look like an old vise in the barn. So I've decided to make my own hardware of square head bolts and square nuts of silver since I don't know where such can be found and wanted the total experience. |
| flyingtractors1:
The casting of the master pattern went well. And when the mold was broken open it revealed a good cast. It looks a little crusty but will clean up nicely. Next comes the creation of the rubber mold for the production of soft wax patterns. Ralph |
| flyingtractors1:
progress every day. The rubber mold turned out good, and nice soft wax patterns resulted. |
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