Gallery, Projects and General > Gallery
Miniature Tool Collection
flyingtractors1:
Thanks John B. It is gratifying that you enjoy my work. Knowing that appreciators, such as yourself, are interested encourages me to keep up with the photo industry and posting. As you so accurately described, I am a Hobbyist And a collector. One might add that I am a true amateur - "one who does something for the love of doing it". :D Others might say obsessed, since I can't seem to stop. Ralph
mklotz:
You may find the work of this fellow interesting...
http://www.finewoodworking.com/woodworking-plans/article/pro-portfolio-micro-maestro.aspx
flyingtractors1:
Thanks mklotz. I do find the work of William R. Robertson interesting, motivating and inspirational. I had seen some of his work but not to this extent. I am totally impressed. Ralph
flyingtractors1:
New Project - And have previously built the essentials -- Master Pattern, Rubber Mold and Wax Patterns and did a limited production run (all I needed was 1), but plan to produce more of this model. Ralph
But first, it goes without saying that the Master pattern and Master mold had to be created to get to this stage. The Master mold building was presented earlier on page 4, and below is a pic of how the Master pattern was constructed which yielded the mold. Each component was hand carved / filed of hard wax and arranged with proper flow channels - that is, connected together with softer wax wire to form a single piece and providing channels for the molten metal to reach every part of the pattern. Then it was suspended in a plaster filled flask, and it was burnt out (lost wax). The remaining cavity in the plaster mold was injected with molten metal, cooled and finished (filed, sanded and buffed to perfection). This could be the end of the process if only one piece was desired, but to produce multiple copies - a Master Pattern has to be free of imperfections because every little detail will transfer to the rubber mold and then appear on the resulting secondary patterns.
Meldonmech:
Hi Ralph, is the mould you show plaster of Paris, for casting the bronze?
Cheers David
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