Subject:
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Re: some new technic models on my brickshelf gallery
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Newsgroups:
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lugnet.technic
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Date:
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Sat, 17 Jun 2000 15:04:46 GMT
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Viewed:
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779 times
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> Interesting! Any chance of some detail on how you achieved this?
Basicly, the secret to having wheels that have both drive axles and
steering is to have the point where the steering piviots (on a model with
regular "steering-link" steering like the 8880, 8448, 8466 or whatever this
will be the towball that the steering link attatches to) aligned with the
centre point of the second universal joint (in the case of the 2 official
lego 4wd cars, the 8880 and the 8466 this is handled by the special 4wd parts).
To make the joint I used, do the folowing.
Get a universal joint and stick an axle into it (the other end will plug
into an axle thats in turn plugged into the first universal joint). The
length of this axle will depend on the wheels you are using but a #4 works
well when using the 8448 wheels.
Next, get 1 of these: (lets call it part 32184)
http://img.lugnet.com/ld/32184.gif
Stick your #4 axle through the hole in the middle of it.
Then get 2 #3 axles and stick them into the axleholes so that they stick
out evenly on both sides.
Then grab another 4 of part 32184 and stick them on the #3 axles so that
they sort of "enclose" the universal joint.
Then get 2 of this part: (part 6536)
http://img.lugnet.com/ld/6536.gif
and stick a peg with towball into the peghole.
Then get a #4 axle and stick it through the "free ends" of the part 32184
so that it sticks out evenly on both sides. You need to take part 6536 and
place it so that the axle hole end is in the middle of the 2 axle holes in
the free ends of the part 32184. The end with the towball in it needs to be
pointing away from the universal joint in the centre.
These 2 towballs are what the "a-frame pieces" like on the 8448, 8466 or
8880 attatch to.
Repeat for the other part 6536 and another #4 axle.
Now, to do the steering, you take a 1x3 thin liftarm and attatch a 1/2 pin
in the centre. Then you attatch the liftarm to the free ends of the #4
axles so that the short end of the 1/2 pin points outwards. (see what I
mean about alignment?) Then you attatch a flex system connector to the
short end of the 1/2 pin, this does the steering (this particular ute used
flex system steering)
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Message has 2 Replies:
 | | Re: some new technic models on my brickshelf gallery
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| (...) <snipped> So in effect you build a completely new hub carrier with more offset than the standard part, which will therefore enable the pivot of the universal joint to lie on the axis of the upper and lower balljoints. All these fancy pieces of (...) (22 years ago, 19-Jun-02, to lugnet.technic)
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