I think the bit with slidertime might be confusing for the noobs. No actual time based stuff is happening other than the current frame moving. It’s use in box creation is no different than i*i. It took me a few reads through the code to figure out “where is that parabola coming from?” I wasn’t listening very hard at the time, but it sounded like a comment was made that you don’t normally use the timeslider but here it looked to be interesting… if got that part right, then it’s more misleading than helpful.

Sorry, takes more words to pick nits than to praise the whole. Seriously, I liked it.

After making my stack of boxes I thought it might be nice if the stack of boxes twisted. Poked a bit at adding rotation to the creation line. Failed. Quick look at the docs gave a solution that looks like (for a single box rotated 35 degrees. For a tower, i*3 or something might be nice):

mybox = box()
myrot = eulerangles 0 0 35
rotate mybox myrot

I don’t know if it’s the best or right approach, but it might help fellow travellers.