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Subject: 
Re: Axle joiner angles
Newsgroups: 
lugnet.robotics
Date: 
Tue, 12 Dec 2000 00:50:34 GMT
Viewed: 
1056 times
  
I think these just correspond to the splines on the old connectors which
they replace. I haven't checked it, but I think the splines are every 12.5
degrees. The connectors are too chunky to make accute angles, so they only
do the obtuse angles:

    0.0   #1
   22.5  accute
   45.0  accute
   67.5  accute
   90.0   #6
  112.5   #3
  135.0   #4
  157.5   #5
  180.0   #2

#4 connectors exist, but they are rare, and they are 135 degrees. They are in
8446 and 8448 and some other sets.



In lugnet.robotics, Brian B. Alano writes:
I suspect the crux of your answer lies in the 3-4-5 triangle. [NOT! read
on to see why this isn't true!]
Ok, that wasn't the answer.

Anybody else?

connect two axles at an angle.

The angles Lego have chosen to supply seem incredibly
non-useful (apart from the obvious 180 and 90 degree ones).

Each part also has a number on it. Here is a table of the
angles for each one:

  1 : 0 deg    (well, it takes just one axle)
  2 : 180 deg
  3 : 112.5 deg
  5 : 157.5 deg
  6 : 90 deg


There must be method in their madness - but I'm damned if I can see
what it is.



Message has 1 Reply:
  Re: Axle joiner angles
 
Oops. It looks like in your list you exchanged the labels of #3 and #5. And it occurs to me that the splines had to be set so that the half bushings could be pushed together and lock when on the same axle. I would have to take a look to see if that (...) (24 years ago, 12-Dec-00, to lugnet.robotics, lugnet.technic)

Message is in Reply To:
  Re: Axle joiner angles
 
I suspect the crux of your answer lies in the 3-4-5 triangle. [NOT! read on to see why this isn't true!] The complements of 112.5 and 157.5 degrees are 67.5 and 22.5 degrees. The sum of 67.5 and 22.5 is 90 degrees. Add add a 90 degree angle and you (...) (24 years ago, 11-Dec-00, to lugnet.robotics)

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