daveskig

My guess is that there are too many lateral loads on screws that go directly into end grain to say that this is "a strong chair". Screws can sheer. End grain can split. It is such a simple build, so try it anyway. There are lots of ways to reinforce joints (junctions, in fact, they are not joints) if you find that some have movement.

Magnificent

Good idea. I'll try with with some perspex/acrylic. It should work with same tools. There are alternative designs that would suit aluminium like this example which is doubtless mild steel: https://www.instructables.com/DIY-dropouts-for-b...