On 05/23/2013 11:42 AM, andy pugh wrote: > On 23 May 2013 17:33, Jon Elson <el...@pico-systems.com> wrote: > >> I had hoped to be able to do this without building >> a gantry machine here just to understand the homing issues. > > Two motors on the bench linked by spaghetti would seem like a usable > surrogate system :-) > > If the spaghetti shaft breaks then more work is needed. (limit > switches simulated by some HAL tracking Rawcounts from the encoders, > which as far as I know never change.) > haha! do you mean spaghetti literally? as in a bundle of dried noodles as a shaft that would break when/if the crabbing got too great? maybe some shearing friction plate coupler with a mark would do same. regards tomp
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