and BTW have you all looked at
Free 2D CAD which is easier than Sketch-up.
On Jan 15, 2014, at 10:41 PM, David G. LeVine wrote:
I remember a toy in my youth which was a wheel-shaped joiner with one
axial hole in the center and 6 or 8 radial holes around the rim. It
allowed dowels with slots to be inserted, friction held them in place.
I can't remember what they were called.