My dad wanted a tunnel for our Lionel Train Set, so I designed one in Blender!
Video demo is here: https://www.youtube.com/watch?v=O_qTKXkKmnA&feature=youtu.be
This tunnel is 224mm wide, 290mm long, and 140mm tall. It is split into two pieces, both of which require the entire build volume of the MakerBot Replicator Dual!
It has a guaranteed clearance height of 110mm and width of 90mm, plus a curved ceiling which adds up to 20mm additional clearance height depending on the object traveling under it.
The platform above can completely fit an object with a blueprint of 160mm x 210mm, but actually has more room due to the mountainous structure.
The tunnel also has a 70mm diameter hole at the top in case you need to fit a plug to power any decorations on top.
| Tunnel_13_EDIT.blend | 894.5KB | |
| Tunnel_v1_1of2.stl | 149.0KB | |
| Tunnel_v1_1of2__no_holes_.stl | 136.5KB | |
| Tunnel_v1_2of2.stl | 157.0KB | |
| Tunnel_v1_2of2__no_holes_.stl | 144.5KB |
