Quote:
Originally posted by nicozeg
Cathar, with that amazing precision parts your machinists can make; having to align the final assembly by eye seems a missuse of your resources. You could design some type of aligning feature on the lower face of the middle plate, that precicely match another one carved on the copper base. This could add some machinning time to your current design, but it will ensure a perfect centering of the jets every time. Once you switch to molded parts, this features comes almost for free.
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I like the idea. It would be nice to have features that would keep the part from ever resting on the tubes when the block was dismantled.
It might be difficult to get a precise fit between these features. When designing molds you have to take into account how the material will shrink when it cools. However, the machining of the copper could be modified after a sample molded piece was produced, to ensure that the alignment was good.
It's often easier to mold a piece, and make the rest of the design work around the molded piece, than it is to get the molded piece to match precise dimensions.