Subject:
|
Re: Toy Story Train comments?
|
Newsgroups:
|
lugnet.trains
|
Date:
|
Fri, 4 Jun 2010 03:06:00 GMT
|
Viewed:
|
24137 times
|
| |
|
|
In lugnet.trains, David Laswell wrote:
| |
I should point out that I made a few tweaks to the design. Instead of using
non-friction axle-pins to hold the main driver wheels on, I’ve replaced them
with red 6-long axles. Then I put some stud-pins in the drive wheels and
used them to attach some 1x8 tiles. I don’t know the standard practice for
how they pair those up, but I figured they wouldn’t both be at the same point
in their rotation, so I’ve got them 90 degrees out of phase with each other
for now. 180 degrees seems like it would be more likely (one piston
extending while the other one retracts, so you’d just have to switch the flow
of steam from one to the other).
|
No, 90 degrees is the norm for 2 cylinder locos, as Larry says it’s called
“quartering” (because they are a quarter of a circle apart). It ensures that
there is always at least one piston not at the end of it’s stroke.
ROSCO
|
|
Message has 1 Reply:
Message is in Reply To:
 | | Re: Toy Story Train comments?
|
| (...) I built a coal car over a 9v motor, and tried it out on a circle of track. It had serious problems running while pushing the engine in front of the motor. I tried adding some straights in to make an oval so it'd have a couple stretches without (...) (14 years ago, 3-Jun-10, to lugnet.trains, FTX)
|
17 Messages in This Thread:
 
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
