Hello, All; and a very bright New Year's to you all!
I've been digging in my archives, and found the images of Gn15 tipcars I had built way back in the 2001 or 2002 era. I have about ten of these little cuties finished, one being "braked" with appropriate parts.
The frame was laser cut from 3/16" thick acrylic, and the tip supports are lasered from 1/8" material. The bin is a modified Lionel part (or is it Marx?), shortened in length and made more accurate looking with new tip pivots. I will eventually cast these in resin, as I had a finite supply of the original plastic parts to cut up.
Axleboxes are whitel metal, and wheelsets are "S" gauge parts, regauged to HO, as made by 'American Models' or 'S Helper Service'. Coupling is via a bent pin on one end, and a permanently fixed link in a ring on the other, so they are one-directional in use, which likely won't be a problem. The frame cross-stretcher is styrene channel, and there are a number of 'Grandt Line' plastic rivets added at strategic points on frame, uprights, and bin. A later addition, after the photos were shot, was a length of styrene long-ways, to act as a continuous buffer beam.
This image shows an experimental laser cut axle box, which I felt lacked enough detail, but once painted, they looked fine.
Eventually I hope to finish many more of these, even if Sir Arthur disliked tippers, I simply can't get enough of them.