Here we have some pictures from the latest "developments".

a boat:

My son has designed and manufactured a boat made of aluminium to keep it dry, and some rescue features in case of any catastrophe...

aluminium boat

a torax:

My daughter asked me how the air could go into the lungs. I prepared this chest to clarify the answer...

plastic chest

a turntable roller:

My one disappeared. Truly. I am not just looking for an excuse to play with my printer... It disappeared. And then I had to play with the printer...

turntable roller turntable roller

The printed wheels were neither well centered, nor perfectly circular shaped. I designed a very simple lathe to make the adjustments with a rotary tool.

lathe lathe