Subject:
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Re: Any Ideas= 8448 and 4 wheel steering?
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Newsgroups:
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lugnet.technic
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Date:
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Thu, 18 Jan 2001 09:51:38 GMT
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Viewed:
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970 times
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In lugnet.technic, Jeffrey Driscoll writes:
> Similar to what I'm building now I think. I'm using 2 u-joints with
> 'parallelogram' suspension, and it works ok as long as you make sure that
> the pivot points for the hub and suspension are vertically aligned witht he
> u-joint pivot points. That way, distance does not increase or decrease
> (altho it does a wee bit i think due to simple tolerances in LEGO) and
> allows all points to remain equi-distant relative to each other in 3
dmensions.
You also have to make sure the two u-joints are connected with the "slits"
matching, not 90 degrees apart, or you'll get the sinusoidal variation Jason
mentions here: http://news.lugnet.com/loc/au/?n=4154.
If you don't understand my description (you wouldn't be the first!) check out
the instructions for the 8448, steps 5 & 6 on the page dealing with the diff /
u-joints (pg 32 in my instructions). You can see that the slit on each u-joint
lines up with the adjacent one. This is not just for good looks!!
Regards,
ROSCO
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Message has 1 Reply:
 | | Re: Any Ideas= 8448 and 4 wheel steering?
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| (...) Well, I did it for good looks, but now I'm glad i did! Whew. Not sure how long that wouldv'e taken me to figure out. I finally mounted my t-block engine and the two-speed auto tranny to the rear assembly. And darned if it dont all work! (...) (24 years ago, 19-Jan-01, to lugnet.technic)
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Message is in Reply To:
| | Re: Any Ideas= 8448 and 4 wheel steering?
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| Similar to what I'm building now I think. I'm using 2 u-joints with 'parallelogram' suspension, and it works ok as long as you make sure that the pivot points for the hub and suspension are vertically aligned witht he u-joint pivot points. That way, (...) (24 years ago, 18-Jan-01, to lugnet.technic)
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