On Saturday, 26 March 2022 14:43:33 EDT Chris Albertson wrote: > Do you have the "Cura Setting Guide" extension installed?
Apparently it does not come in the linux AppImage. > If so, I > think it is pretty clear. There is a diagram that shows how as the > parts getts fatter the holes get smaller so to compensate use "hole > expansion." Haven't seen that, ever. > I agree, it is not clear exactly what a hole is what about slots? I > think a hole is just any interior facing wall. Which is one of the reasons I prefer to do the predistortion for such in openscad. Then I know for sure I'm not screwing anything else up. > In any case the value for the expansion is in mm, so the effect of 1mm > is huge on a 3mm hole but only 1% on a 100mm hole > > I have two solutions for 3D prints used as machine parts: > 1) design the machine to work well with poor tolerences. This mostly > works if you can do a from the ground up design Which is what this is, I'm copying an idea, but not the part. > or > 2) Put the plastic part on the lath or mill and take a thin cut to true > the surface. > > I just did this the other day. My printed countersinks where not 100% > round and smooth so I whent over the part and touched them up with a > countersink cutter on the drill press, had to correct some other issue > with a file, Then the parts get primed and painted. Oh! My! Much to fawncy for me. I'm happy if it works, color is whatever I fancied the last time I ordered more filament. ;o) Take care Chris. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
