I believe (I've sent out a sample file to be quoted) that they will be prohibitively expensive.
If I could figure out how to make shapeways 3D printed metal parts work that might be affordable.
(Long time followers will recall that the shapeways process does not work for internal cooling passages, so the inner and outer need to be assembled from separate parts, and if you then weld them together they get porous as the high welding temperature drives out the brass used to infuse the stainless powder.)
So one of the tests that I might do is to see if I could make a 3D printed rocket design that Shapways could make, then I would solder or low temp braze the outer shell over the motor.
Another possibility might be to plate the resultant leaky welded motor ... a number of things to try...
One could always build saddle jacket motors.
4 comments:
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That's an interesting approach to rocket motor construction. The 3D printing challenges remind me of trying to survive the night in Fnaf, always facing unexpected obstacles. Finding the right balance between cost and functionality is key. Maybe exploring alternative materials or plating techniques could unlock a winning combination. It's all about problem-solving and finding creative solutions to push the boundaries of what's possible.
That sounds like a fascinating and challenging project! I once tried creating custom RC car parts and ran into similar issues with metal 3D printing—cost and structural integrity were big obstacles. I ended up switching to simpler designs and spent some time unwinding with browser games like Slope Game when I got frustrated. Sometimes, taking a break and coming back with a fresh perspective really helps you find creative solutions.
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