Today I made this:
Yes, that's right: it's a small notch in a random bit of 3 mm steel I had lying around. Impressed? I was.
It might not look like much, but in order to make said notch, I made this over the last week-ish:
More pictures:
In case you haven't worked it out, it's Harold Hall's filing machine. I hate filing with a passion, so this should be quite handy. So far I've only prepared a square file, a "tri-square" (why can't they just call it "triangular"?) file and a flat file, but more will come over the next few days.
The "variable stroke mechanism" (adjustable eccentric bearing) is a beautiful design. Here are a couple of videos of it running with somewhere near maximum stroke length (first slowly, then a bit quicker):
I'm feeling rather chuffed with that.