Machine a plastic tube that will go over the thread ( and stay on there) that protrudes past the face where the key goes in by about 30mm or so . Turn it plastic tube down and bang it repeatedly on a solid surface. The inertia of the key blank will force it out.
Modified a cheap Bosch angle grinder to make it run along a linear rail. Trimmed all the newly made glass lenses to size with a diamond disc. Lenses pretty much indistinguishable from the originals when in the housing. Will call that job done :)
Picture of the six taken before the last...
I’m just outside of Headcorn. Have Spitfires overhead at least three times a week. I treat it as a personal aerobatics show, always a loop and a victory roll , with a quick waggle of the wings as it flies off.
How often do you use it? Does the oil resemble pink yogurt? Normally a condensation issue. Hydrovanes don’t like infrequent use. They need to run everyday to boil the condensation out .
Every micrometer is fast enough if you know how to use it properly. Hold it by the frame and run the thimble along your arm and badda bing badda boom you have quick adjustment, unless you have very short arms…:whistle:
Then I really cannot see how reading a micrometer is an issue, it’s part of it.:dontknow:
It’s not like you work in a Chinese sweatshop and have to churn out 5000 parts an hour….
iPhone used to program the temperature controller on the little dental kiln I am using. Added bonus of Wi-Fi is real time data logging so I can see what’s going on without having to go out to the workshop. Controller could do with a bit more PID tuning, but accurate control in a very small kiln...