Steamer

[steamer]

Thanks Steve. The loci in the picture is Canadian National 6400 Northern. Built back in 1936. Started to build one, but sold it when I moved here from Ontario. Would be nice to have now. Always my favorite.
Rob

[steamer]

I did build a lock for the gate as follows. First made lock arms from some .060 brass. cut two pieces of 1/8" dia. drill rod and silver soldered on the arms. Cut a piece of 1/4" drill rod and drilled and taped 8-32 right the way through. Made up and silver soldered on a brass arm to link up to the servo.

Threaded the 1/8" drill rod 10-32 thread and installed it with lock nuts to keep the arm parallel and from turning

Mounted small servo from Helli to the box hooked up the linkage and it worked.
Last photo is the down stop switch for the screw drive. It has a diode bridge on it so it will reverse to go back up.

Thanks for looking
Rob

[grumpygrady]

i like the look of the saw marks on the ends of the plastic
they look like steel after being cut with a plasma cutter and a gas axe
nice detail lol



Threaded the 1/8" drill rod 10-32 thread and installed it with lock nuts to keep the arm parallel and from turning


Thanks for looking
Rob[/QUOTE]

[steamer]

Thanks for all the comments on the build. The pintle is from PMD and I think it's a good product. May have to install a spring to keep the lock closed.. Never thought about the edge looking like a plasma cut but it does. Tried a lot of different methods for cutting styrene and ended up using the band saw with 18 tooth blade. It cut the fastest and left that edge. I'll do up a drawing for the switch and post it later.
Back on the dump box. After it was finished I gave it a coat of Modelmaster Chrome silver and made the overflow boards for some mahogany.

In this photo you can see the servo for the tail gate latch.

I also had to shorten up the cab floor. I worked it out and was able to fit in the 12 volt battery for the dump. Two esc's are for truck drive and dump


Next up will be painting the cab.
Thanks for looking
Rob

[steamer]

I also did a short vid of the box in action. It was able to lift 25 lbs no problem.

Rob