Three-path Dice Tower V.2

I just wanted to let everyone know, anyone is now authorized to sell prints or remixes based on this model, as long as they are correctly attributed to me.
(Tips would be appreciated, haven't received any in the nearly 10 years since I posted this)

Three-path Dice Tower, now with stone-like surface!
This is a dice tower based loosely on Laura's Tower in Shrewsbury.

All the components are to be connected using 8mm x 3mm disc magnets. Here's a link of it in action https://youtu.be/Yud55mL8Ov8

I used texturelib.com's brick_pavement_0060 image to make an svg in Inkscape. Then I imported the svg into Autodesk Fusion 360, and extruded it into a solid. This solid was then used to cut stonework into the surface.

I also took shawngeise's (http://www.thingiverse.com/shawngiese/about) advice, and made the top "dice-dumpable". Thanks, shawngiese!

No STEP files, I don't use them. ;)

I created arches that follow the contour of the stair railing, and merged them with the stair objects. At the widest spacing, the maximum gap between columns is 13.886 mm, plenty tight enough to retain 20/25 mm dice.

I'll be updating the all-in-one models with an arched stair version, and rendering images with the updated stair objects over the next few days.