I made this handwheel specifically for my O scale Gate Valves as a 15″ dia handwheel – the original 12″ dia handwheel was just too delicate. It has five-spokes. The valve stem hole is 0.88 mm/0.035″ – this is smaller in a 3D print because of shrinkage but ends up around 0.28″ which is fine as a Quilting pin used for the valve stem is around 0.021″ – a common round-headed Quilting pin can be purchased at a Walmart sewing section.
- HO scale (1:87) – 27.4″/696mm
- S scale (1:64) – 20.16″/512mm
- O scale (1:48) – 15.12″/384mm
- O scale (1:43.5) = 13.7″/348mm
- 1:35 – 11″/280mm
- 1:24 – 7.6″/192mm