Part 1 - Part 2
Be sure to read Part 1 for some background on my PM522 Washbear revolver.
In its current state, the cylinder of my revolver design takes over 20 hours to print and eats up a good deal of filament. It's a lot of resources for a consumable part. So I came up with an solution to improve the production of these types of parts. It's essentially my take on the method used by this group from Yale, wherein a hollow shell of the part is printed and then filled with a two-part resin. I modified my cylinder model to be two pieces of the shell, seen here:
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These parts have virtually no overhangs and can be printed with no support material. You can see the six bores are printed inside the white piece. They are rifled in the front half. After these two parts are printed, they are epoxied together to form the hollow shape:
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After that, the shape is filled with a two-part resin such as the common polyurethane resin used for fiberglass work. That's it. It would take 1-2 hours to print and ten minutes to pour and cure the resin. If this works, it would immensely improve the practicality of printed barrels. I'm gonna send these files over to FP and see if he can get a prototype put together for testing.
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Questions? Suggestions? Let me know in the comments.
Be sure to read Part 1 for some background on my PM522 Washbear revolver.
In its current state, the cylinder of my revolver design takes over 20 hours to print and eats up a good deal of filament. It's a lot of resources for a consumable part. So I came up with an solution to improve the production of these types of parts. It's essentially my take on the method used by this group from Yale, wherein a hollow shell of the part is printed and then filled with a two-part resin. I modified my cylinder model to be two pieces of the shell, seen here:
These parts have virtually no overhangs and can be printed with no support material. You can see the six bores are printed inside the white piece. They are rifled in the front half. After these two parts are printed, they are epoxied together to form the hollow shape:
After that, the shape is filled with a two-part resin such as the common polyurethane resin used for fiberglass work. That's it. It would take 1-2 hours to print and ten minutes to pour and cure the resin. If this works, it would immensely improve the practicality of printed barrels. I'm gonna send these files over to FP and see if he can get a prototype put together for testing.
Questions? Suggestions? Let me know in the comments.