Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4885811.

This was originally a wooden trivet. The designer made the diagram available for free so i copied it in to fusion 360 for printing. Original model can be gotten from Andrew Klein (aklein2303 on instagram) This will require glue. Print 8 of these. Assembly is straight forward following the layout in the pictures. Tolerance may seem loose but i wanted it printable by anyone. Lay it on its side and scaled in the Z .2mm or so if you want it tighter