So I’ve invested in a 3D printer and have started printing some 3.5″ gauge rollingstock. There are some sources for some ready to print rollingstock that I’ve found on the internet. While 3D printed rollingstock isn’t suitable for passenger hauling it does look good running at the back of a train.
Wheels
Looking at options for wheels in 3.5″ gauge and there is little available commercially. The International Brotherhood of Live Steamers has the cad files with wheel profiles on their website. I’ve used this to create some basic wheels for 3.5″ gauge. Time will tell how these last running on the raised track at the club.
Most of the models require some additional materials to complete and you will need a supply of brass, bright mild steel rod for axles, bearings, BA bolts etc.
Ready to go Wagons to print
I’ve added some links to some ready to go files you can print for 3.5” gauge. Let me know if you come across any others.
Andrew_Wildish has published the STL files for a 5″ gauge lowfit wagon on Thingiverse and I’ve successfully printed these at 70% to create a 3/5″ gauge wagon https://www.thingiverse.com/thing:4907727
Darren Elmslie has a 3.5″ gauge mineral wagon on TinkerCAD https://www.tinkercad.com/embed/foMYt4BfXHu?editbtn=1
Pine Valley Estate Railway 