Yes, this is in line with my suggestions to design based on the materials you are using. Countersinks have more bearing surface and are stronger in plastic than counterbores but MORE IMPORTENTLY a countersink can be printed upside down (or any orientations) with no need for a support structure.
There are lots of design tricks for plastic. In metal, we like to have flat mating surfaces because they are easy to machine with a fly cutter. But in plastic, we can print wavey mating surfaces that interlock and self align. I like to use hemispherical bumps that fit into hemispherical "divots". Then the screws don't need to take any shear forces. It is trivial to do this in plastic so "why not? On Thu, Nov 12, 2020 at 10:08 AM andy pugh <[email protected]> wrote: > On Thu, 12 Nov 2020 at 17:05, Gene Heskett <[email protected]> wrote: > > > Suggested fixes? > > Countersunk screws instead of counterbored? More likely to be > self-supporting. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
