Tunnel Gauge
thingiverse
This simple tool helps modelers clear rolling stock from their layouts effortlessly. It makes inspecting tunnel entrances and bridges a breeze. To use it, cut a 5/16 inch dowel rod to length as a handle and tap it into the base.
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With this file you will be able to print Tunnel Gauge with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Tunnel Gauge.