On Fri, 17 Dec 2021 at 08:06, John Dammeyer <jo...@autoartisans.com> wrote:
> Add the second though and there doesn't seem to be any clear position where > the second just drops down onto the secondary planet gears. It's always a > force fit. Either there's a key where it can go together just so perfectly > or it's a flawed design. I think I would print the planets with the phase shift built-in. But you will never be able to slide them in axially, they need to be engaged radially and then the axles be dropped in. But I don't think that I understand your tooth counts. You should have 100, 101 and 6 x 40t gears. The 100 and 101 need to be profile-shifted to have the same PCD. Align the green and blue teeth at 0 deg. Half way round the teeth will be 180 degrees, or half a tooth pitch out of phase. At the +120 degree position the pinion pair need a phase shift of +1/3 tooth pitch, and at -120 degrees -1/3 tooth pitch. I don't _think_ that the +120 and -120 gears are interchangeable, but I might be visualising erroneously. It's probably worth making a detailed CAD model and meshing all the gears in the model, just to be sure. I failed to do that with this. At least yours is just 3D print: https://youtu.be/wzz9MIz_KNg -- 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
