Quote:
Originally Posted by Babytank
Sidebar; what do you think of 3d printing a custom camshaft in plastic(compensating for thermal expansion of the metal by a factor of the alloy), adding feeders and troughs to it, submerging in in silica/plaster mix(seen it used before and is cheap), burning out the plastic and filling the cavity with 1 and a half original camshaft material. The end results I've seen for small parts have been pretty good with home level gear these days.
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That would be a lot of effort resulting in a low quality cam.
Machining a cam from solid steel bar stock would be less effort, and result in a higher quality cam.
I worked for a machine shop in Florida years ago, we provided cam blanks to Roush Engineering (machined, heat treated/carburized, ready to grind bearing surfaces/lobes).
Those cam blank were 8620 steel.