Large Scale Central

Changing scales

General Discussion
#1


 
Ray's post on changing scales inspired me.  He wanted to go bigger, and that certainly has it's challenges.  I, however, decided to try going smaller.

I wanted to see how small I could make a working coupler.  Trip pin, knuckle, draft gear and all.  At first, I was going to simulate the draft gear action with a spring... but then I thought: why not make the draft gear too? 
 
I have been experimenting with using a cat whisker to trigger the trip pin.  Unfortunately, they are very easy to lose, and my cat isn’t very happy with me right now.
 
More photos here: http://burlrice.com/couplers/
#2

Good one.

Dennis

#3

So how large is that 3D printed quarter? You should have done a dime, then we really would have been impressed. (http://largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-wink.gif)

#4

The quarter came from Amazon: https://www.amazon.com/Loftus-Jumbo-Quarter-3/dp/B0034DSDUY/ref=sr_1_1?ie=UTF8&qid=1491131787&sr=8-1&keywords=giant+quarter

I have a dime, but the math didn’t work out. The quarter is 3:1 scale. Since 1:29 is 1/3 of HO, it fooled a lot of HO guys.

#5

Ah, gotcha

#6

Cool trick!