Some folks might want to use the Scorpion Mech in different scales. That's very do-able, and I encourage that.
In 6mm or Epic, he'd be a great Titan Hunter or Kaiju Fighter, buzzsawing the legs right off Knights.
In 28mm, he'd be a vicious combat drone, or an assault cyborg chassis, or light mecha.
The reference stick is 4"x1"x1/2". Metric readings are on there, as well.
I had a request from a gentleman in the UK for a common size reference object, like an AA battery. So, I whipped one up. Thanks for the suggestion, David! Cheers!