Spiral staircases

thingiverse

I'm eager to quickly display left-hand up, right-hand up, and double helix staircases. Here's how I approached the challenge: To begin with, the diameter of this design, if printed as is, measures 40 mm in height and 25 mm, with the double version requiring two parts that need to be glued together, each part measuring 30mm high. Now, take a look at my creation and feel free to share your own makes.