Old school Kleins had pressed-in headsets that
were way ahead of their time. The good thing about them is that
they didn't require any adjustment and they were bomb-proof and lasted
forever. The downside is that changing the headset when it wears
out (and it can last for ten years) or you change forks is a lot more
work and requires a special tool.
I was able to buy the frame of the press from a fellow cyclist but
didn't have any of the attachments. So when the guys at the shop
said they would teach me how to machine, this was the first thing on
tap to make.
I'll be putting up a guide on how to change a Klein headset but that'll
have to wait for now. So for now, just appreciate the machined
The frame is the large part in the rear with a threaded rod.
That's what a friend had. The parts that I made are all the
pieces in front of the frame.
This was the very first part I ever made.
I started working on it at 9:00 in the morning. We went to lunch
at noon and I hadn't quite finished it. I had no idea how to do
anything. The machinists helped me, a lot, but it was a slow process
learning to use the lathe. How to turn something to the correct diameter. How to
get the correct width and the like. So it took me 3.5
hours to make because when I say I was starting from zero knowledge, it
was exactly 0.0. Now, I could make the piece in a few
minutes but that's what experience does for you.
The piece on the left was the second piece I made and as you can
see, has a taper. That was another long process to learn but the
taper was eventually in there.
However, we then had to mill the slot into the piece. The problem
was how to clamp a circular piece into the mill. The machinist was
thinking of all these ideas and I finally said, "Hey, let's not clamp
it by the sides but by the ends. Instead of cutting the slot left
to right, lets move the mill table back and forth." The machinist
said, "Uh..yeah. Good idea." I was learning fast.