Thank you for liking them.
Infojunky -
When you say 18mm, do you mean 18mm to the top of the head?
The sand coloured metal mini from Micropanzer is 18mm from foot to head. When I scale for 3d printing I always use an 18mm block
for scale reference, since the majority of metal minis I have are 18mm. Being Dwarfs they are scaled to fit.
Z