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Subject: 
Re: Hogwarts Express 4-6-0 engine
Newsgroups: 
lugnet.trains
Date: 
Mon, 2 Aug 2004 20:07:19 GMT
Reply-To: 
cjmasi@*nogarbageplease%SayNoToSpam%*rcn.com
Viewed: 
1677 times
  
Mathew Clayson wrote:
I'm nearly finished with my HE 4-6-0, and thought I'd share some pics. It uses 3
pair of the BBB regular drive wheels, non are blind drive wheels. And it had a
drive rods spannig all tree wheel sets.

After experimenting I had several ideas to get 3 pairs to work, all of which
were also mentioned here by others. But the only ones that would allow me to
runn  drive rods to all 3 sets was either make blind drivers, or design it so
the inside center drive wheel could be pushed in 1/2 stud while on curves. I
choose the later, as I wanted the wheels to match each other. This solution only
works of you are useing 6 stud center spacing, with 7 stud the front and back
set bind to much and tend to derail.

I used technic bricks for the wheel base, and a thin technic beam to space out
the center wheels. The wheels are mounted on 2 stud axels with a small spring in
the center between them.

<http://www.brickshelf.com/cgi-bin/gallery.cgi?f=93123>
<<http://www.brickshelf.com/gallery/impact1/TRAINS/HogwartsExpress/legotrain05.jpg>>

If there is a beter way to build th edrive rods, I would love to here of it. I
have a limeted technic collection, but plan to swap out the U-joints with non
locking Technic Toggle Joints.

I still need to add a bit of detailing, and build the tender. And after that
convert the coach cars to 7 stud and 1 brick taller.

Mat Clayson

Mat,

   I like the way you handled the middle wheelset. It looks great. The
two stud axel with the technic triangle widgit thingy (LD part #2825)
for the extra 0.5 stud is a great idea. Where, by the way, did you get
the spring? The local hardware store?
   For the drive rods, I think most people use technic plates (32017,
32063, 32065, or in a pinch the plates with the studs 4262, 4263 for
example) rather than the technic beams.
   Any way, thanks for coming up with a nice design for a floating
flanged center wheel. Of course, you know that I will have to use this
design when I finally get arround to building another steamer.

Chris



Message has 1 Reply:
  Re: Hogwarts Express 4-6-0 engine
 
(...) so (...) Chris, thanks, I'm not the only one to come up with this, but I think my version may be the simplest to impliment. The spring is from a ball point pen. I cut it to 2/3 stud width. A spring from an old keyboard may be better suited. (...) (20 years ago, 6-Aug-04, to lugnet.trains)

Message is in Reply To:
  Hogwarts Express 4-6-0 engine
 
I'm nearly finished with my HE 4-6-0, and thought I'd share some pics. It uses 3 pair of the BBB regular drive wheels, non are blind drive wheels. And it had a drive rods spannig all tree wheel sets. After experimenting I had several ideas to get 3 (...) (20 years ago, 2-Aug-04, to lugnet.trains)

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