Since I can't sell my objects at Objects Online as I live in the UK, I might as well give this simple little object away for free.
It's a simple object for drawing in 2d and 3d Forticrete Stepoc walls http://www.forticrete.co.uk/standard-masonry-products/stepoc/stepoc1.htm .
I haven't done that much to it other than draw the 2d symbol in the module size but I'm sure if you want to tweak the fills or script em or make it scale sensitive it's not that tough to work out.
Enjoy
AC versions 3.41 to 25 (UKI Full 5005).
Using AC25 5005 UKI FULL
Mac OSX 10.15.7 (19G2021) Mac Pro-2013 32gbRam AMD FirePro D500 3072 MB graphics