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In lugnet.technic, Geoffrey Hyde wrote:
> Some photos of what you've tried so far would help a great deal.
I'm sure they would. Sorry I just haven't taken any yet. But this thread has
given me some great ideas to try...
> I was wondering if it would be possible to see how cloesly you're matching
> up the worm gears to the rack gears, theoretically, it should be possible,
> but if you're using more than one worm gear against a rack gear, the
> construction has to hold it in place and the worm thread on the worm gear
> needs to be precisely aligned with the line of the rotational thread of the
> worm gear next to it or your worm gears will be out of rotational sync with
> each other - unless you're only using one worm gear on each rack part.
The worm gears are aligned carefully, and they seem to mesh fairly well, but I
think ultimately rack gears and worm gears in LEGO just aren't a good match. I
think part of my problem is that there is enough space along the axle for it to
deflect away from the rack, giving room for the teeth to skip.
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"Bill Ward" <bill@wards.net> wrote in message news:Ivo9xE.1oBF@lugnet.com...
> In lugnet.technic, Geoffrey Hyde wrote:
> The worm gears are aligned carefully, and they seem to mesh fairly well,
> but I
> think ultimately rack gears and worm gears in LEGO just aren't a good
> match. I
> think part of my problem is that there is enough space along the axle for
> it to
> deflect away from the rack, giving room for the teeth to skip.
They do not mesh. We need a rack like this ///////////
not ||||||||||| .
Bob
--
http://www.ozbricks.com/bobfay/
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