Subject:
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Re: 4 to 1 ratio?
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Newsgroups:
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lugnet.technic
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Date:
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Wed, 12 Jan 2000 20:16:05 GMT
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Viewed:
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524 times
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In lugnet.technic, Daniel Delcollo writes:
> while working on a project of mine to build a small replica of a 4 stroke
> engine out of legos I discovered I didn't know how to make a 4 to 1 ratio for
> the timing of the valves. I could get close using pulleys, but I figure there
> must be a way and Im sure someone who reads this will know the answer and can
> tell me how. Please help.
I've been thinking on this a while ago and I think the easiest way is to use 2
pair of an 8-tooth and a 16-tooth gear. Something like this
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## #
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# ##
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where ## is a 16-tooth gear and # an 8-tooth gear and | are axles. This means
the (horizontal) distance between the axles is 1.5 studs, but this can be
accomplished by several ways, most easiest by using a 1x1 1-hole Technic beam
next to a 1x2 1-hole Technic beam.
Hope this answers your question.
Keep building, Rengenier
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Message has 1 Reply:
 | | Re: 4 to 1 ratio?
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| Replying my own message... sigh! The "picture" was messed up. The fixed width / Non fixed width issue again... Of course it should be: (hope this time it's okay in non-fixed width fonts, I'll not reply again). | | | ## # | # ## | | | Back to (...) (25 years ago, 12-Jan-00, to lugnet.technic)
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Message is in Reply To:
| | 4 to 1 ratio?
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| while working on a project of mine to build a small replica of a 4 stroke engine out of legos I discovered I didn't know how to make a 4 to 1 ratio for the timing of the valves. I could get close using pulleys, but I figure there must be a way and (...) (25 years ago, 12-Jan-00, to lugnet.technic)
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