jcc3inc:
I thought of using a finer pitch. But all the plans I have seen for the big 4'x8' machines use 12 Pitch, 14.5 Deg. I don't even pretend to know why. Maybe it has to do with the big honking motors we use (thus lots of torque). Or maybe it's something else, don't know. But if I ever make some money with this machine perhaps I'll try a finer pitch and see what happens. Smoother would be better.
HomeCNC:
I see, so what your saying is I should make it adustable and move it up ever so slightly till I get a smooth action (We don't need no stinking books or plans!). LOL. Seriously, I'll try to find that data so I'll at least have a good guesstiment.
Thanks everybody!
You have all put my mind at ease. I'm sure the rack-n-pinion is as it should be. I just have to be careful how I mount them. I will make it totally adjustable. Thanks again. |