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(...) Thanks to this advice, I've got a pretty good idea how we can fix the lift lock, but I'll throw somethign together at home tonite to test... THen I'l bring it to dinner next Friday Dave K (19 years ago, 5-May-05, to lugnet.technic)
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| | Re: Help with redesigning a Boat Lock
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(...) The 'water' and especially the boat are quite heavy, so any slippable connections would not work. The weight would also cause problems with driving the string reliably. john (19 years ago, 5-May-05, to lugnet.technic)
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| | Re: Help with redesigning a Boat Lock
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(...) Hmmmmmm.... cough... cough....... I think Jeff had a little bit of help ;) Rob, if you come to the next dinner, and if Jeff brings the lift lock, maybe we can put our heads together and come up with a thought or two :) John (19 years ago, 5-May-05, to lugnet.technic)
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| | Re: Help with redesigning a Boat Lock
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(...) What if two gears were used, one on either side of the the worm, effectively pinching it between them? That should stop any flexing and prevent the teeth from slipping. Jennifer (19 years ago, 5-May-05, to lugnet.technic)
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| | Re: Help with redesigning a Boat Lock
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(...) You know Jeff, for a train guy, you are pretty good with gears :) I think you are very close with Attempt 3. The tricky part is designing a "nut" to mesh nicely with the worm gears. I have a design for a leadscrew that is very smooth and (...) (19 years ago, 5-May-05, to lugnet.technic)
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| | Re: Help with redesigning a Boat Lock
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(...) Then it's a lift lock 'cause that's what Jeff's going for--the bottom of the lock is suppose to look like water going up and down and work like a lock in the Welland Canal Lift Lock system. And then the doors are suppose to open and the boat's (...) (19 years ago, 5-May-05, to lugnet.technic)
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| | Re: Help with redesigning a Boat Lock
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(...) First off I think it should be called a boat lift rather than a lock, because in a lock only the water moves. (...) I've read the other posts in this thread and I like both the string and the rack idea's. Racks are commonplace on locks because (...) (19 years ago, 5-May-05, to lugnet.technic)
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| | Re: Help with redesigning a Boat Lock
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(...) So much for quick diagrams - of course the back corner should attach to the RIGHT side string not the left. ROSCO (19 years ago, 4-May-05, to lugnet.technic, FTX)
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| | Re: Help with redesigning a Boat Lock
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(...) In case I didn't explain myself well, see the diagram (click to enlarge): (URL) The yellow lock level is attached to the string at the red exxes. Pull A to raise, B to lower (they can be wound on pulleys). You can reduce it to 1 per side a la (...) (19 years ago, 4-May-05, to lugnet.technic, FTX)
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| | Re: Help with redesigning a Boat Lock
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(...) That looks like a *great* project - I hope you can make it sturdy and reliable! As Larry pointed out, you need to keep all the vertical worm gears in sync by tying them all together. Do you have room for the 24t - worm gear gear blocks in (...) (19 years ago, 4-May-05, to lugnet.technic)
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