Subject:
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Re: Two New GBC Modules..
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 14 Aug 2007 09:26:12 GMT
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Viewed:
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8920 times
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In lugnet.technic, Jean-Marc Nimal wrote:
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I wonder if regular cams (6575) might work too, I don’t see why not...
hummmm...
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In lugnet.technic, Jordan Bradford wrote:
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Speaking of remorseless shameless copying, I spent an hour and half last
night trying to build the crankshaft.
I can’t figure out the pattern those pulley wheels are using, especially how
much space is between them. It doesn’t look like the space is always the
same, but maybe that’s because you had the same troubles I was having.
Sometimes a 4-stud axle is too long, and a 3-stud axle is usually too short.
Bah!
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It’s hard to tell from that picture, but pause the video and you’ll see the
balls run up at a 6-stud spacing. That means the peaks of the wave are six
studs apart.
The cams are spaced with one pulley plus a half bush, so are spaced exactly one
stud apart.
This means that he’s using the six holes of the pulleys to align them in 60°
rotations (6 x 60° = 360°).
You couldn’t replicate this with cams as they can only be fitted at 90° angles.
You could try it, but it may not be a smooth enough movement when you take into
account the rising slope.
Jason R
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Message has 1 Reply:
 | | Re: Two New GBC Modules..
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| I built it last night. My earlier problem was in trying to use 4-stud axles to hold the pulleys in their offset position -- this is hard to describe, but the gist of it is the axles sometimes got in the way of other pulleys and warped their (...) (17 years ago, 15-Aug-07, to lugnet.technic, FTX)
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Message is in Reply To:
| | Re: Two New GBC Modules..
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| (...) Speaking of remorseless shameless copying, I spent an hour and half last night trying to build the crankshaft. I can't figure out the pattern those pulley wheels are using, especially how much space is between them. It doesn't look like the (...) (17 years ago, 13-Aug-07, to lugnet.technic, FTX)
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