Re: [CAD_CAM_EDM_DRO] New motor direct coupling question

I think those 'spider' couplings have (or will aquire over time) some
backlash. It sounds like what you already have will work.

RayHex

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> From: washcomp <jeff@...>
>
> I'm working on changing a Bridgeport from a NC to a CNC unit. The
> NEMA 42 motors are directly coupled to the screws, but the have what
> looks like neopreen bushings around the mounting screws going through
> the mounting brackets giving some smll ability for the motor to have
> some give. Has anyone seen this arrangment before? Should I change
> the setup to flexible shaft couplings? I've got some off another
> machine which look like rubber gears that go around a finned metal
> disk on each side. Are these OK (if you think the original mounting
> is inappropriate).