Are you planning on keeping the barrels out 24/7? They might end up as squirrel food…
You missed the treads for screwing them in place…
Even with screws the tree rats will nibble away at resin printed parts. Ask me how I know… 
Hope so, that’s why they’re filled with cyanide. 
1 Like
Anyone think guard rails would be of practical help in preventing derailments here?
NO!
but i think, they could prevent tumbling down of derailed trains.
That’s what I’m getting at. You’ve personally seen their effectiveness in that regard?
only indirectly. i have seen a big hauler taking a 5’ dive from my trestle without guardrails.
(it gave an interesting sound on impact)
it could still be used - for modelling a Casey Jones scenario.
Cliff I’m not certain, but I believe you are thinking prototype guard rails where Korm, may be thinking protective rails that possibly angle out from the trestle and are sturdy enough to actually support the train. The prototype will possibly keep a derailed truck from jumping too far past the track line, but if the stouter variety is used though totally non prototypical it may keep an unguarded train from meeting it’s maker. JMHO YMMV MUD 
I do not know what the prototype had, inner or outer like the RGS but i would add them regardless. and they should be of smaller rail section. I use code 250 for the main so my guard rails are code 215.
AL P.
my miles vary just by some yards…
neither did i think about guardrails like in switches, or on some curves (or canadian bridges)
nor about ugly chains or piano wires alongside overhead layouts.
when i answered Cliff’s question i visioned the oldest type of “guardrails”
the solid ten by ten or ten by five beams, that were on bridges and trestles bolted to the outer ends of the ties/sleepers. these beams potentially hinder the roling stock to go over board.
(my trestle did not have them)
Yes David, like that. I was just trying it out with a loose truck, and the extra rails really do seem to keep the wheels from straying too far, like you and Al are saying.
When I built a small trestle for Clem’s modular layout, it had guard rails and guard timbers.
I don’t know where I got them from, but I have a bunch of GIFs from Bridge57, and a drawing marked ‘typical construction’.
P.S. My trestle had prototypical bolt heads along the guard timbers. Roger’s K-36 snow plow was so wide it hit every one! We had to rip them out.
2 Likes
Al, is that based on prototype usage of cheaper rail for the purpose, or is there a mechanical reason for the smaller size?
I have plenty of same size rail (350), but not 250 (which would look odd I think, and take awhile to acquire). Any real disadvantage to staying 350?
Those would have looked very nice.
However, due to complexities with the bottom end’s threaded inserts, the top end was on the build plate (with lots of supports), and that would have been a nightmare to sand (vs. on a belt). Having said that, a 2-piece print (separate lid) would have looked great.
Great drawing and info Pete, thank you.
All this coming from a man that just printed out non functioning bolt down water barrels for detail? If you really wanted to keep your trains from falling off (if you run them) just string some cable between your bolted down water barrels and call it a walkway hand rail.
Put the freaking guard rail details on it and call it done!!
Then get video with audio of you carrying it out and installing it.
my water barrels are two piece and the barrel hollow.