Today I went to the San Antoni book flea market (Barcelona). About 99% of the books are non-technical. But I saw four very interesting old volumes. Two of them have almost no text at all, just a lot of diagrams with various old machines. And the other two contain countless diagrams of simple mechanisms. But unfortunately they were very expensive, 120 euros this one.


Also in the area I came across some Pakistani second hand shops, or something like that. They don’t even show up on Google Maps. They have all kinds of tools at very low prices.


These things are from the toolbox for 0.5 euros each

I also found an interesting MT3 milling cutter. I think it’s for making T slots. The cutting part is covered with some kind of rubber. But I can’t imagine how it could cut steel with my milling machine without chatter. It’s too long.

And why are the teeth not aligned?

And a bag of M10 screws never hurts.
