All that practice on steel paid off – the first brass part (OK, the second brass part, but I’m not counting that first total fail) looks pretty good. I need to be a little more careful on the big cutouts and probably not go quite as deep, the right one in the picture is a little too close to the end and the thin edge is pretty thin. Since the tool that cuts those is handmade, I don’t have a really good location for the center of the arc, it’s up to me to eyeball location of the cutter on the machine. Not perfect, but for the purpose it’s totally acceptable.
Making the final 2 pieces later this week to deliver this weekend!
Here’s a picture of the scale this part goes with. It rests in the body of the scale at the 6 1/2″ mark when not in use; when in use it’s placed on the brass arm in the cutout at the 2″ mark.
This scale is designed to calculate postage in England, so the scale reads in pence. Without the pin, the range is 0p-10p, with the pin the range is 10p-20p as shown on the opposite side of the scale.
It’s pretty clever how this thing works – any weight on the pan raises the arm to the first of the 5 pins in the middle of the scale and the readout is 1p. As you add weight, eventually it’s enough to lift the first pin; now you’re in the 2p range. This repeats for the 4p, 6p, 8p, and 10p rates; when you max out just add the final pin, and read the results on the other side to use the 12p-20p range.
According to dad, it was manufactured by Joseph and Edward Ratcliif in England in the 1840s.