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I meant what part of the world, but that's interesting, too! :)

What general area are you in?

Thanks, that was my next stop!

Does anyone have an idea what a Colchester Chipmaster is worth? I'm asking for someone else and after a quick look at it, the ways look very good, it has no chucks, the variator is not just not functional but totally missing and was replaces with a 575V 3 phase motor with a VFD. I didn't check...

I had a Maximat 7 and agree, that switch could be a real pain if it fails, otherwise I really liked it. They do require care though as the flat ways collect swarf and are soft, so they have to be kept very clean, replacing the felt wipers would be a good start.

I'm not sure what you are doing with your wrenches, I have sets of Bondhus wrenches that are at least 20 years old, the only one that gets worn out, and I think I've only replaced two in the 20 years, plus the 3/16 ones that got lost. The thing to watch out for is allowing regularly used screws...

Clean up isn't a big deal, the magnet turns off so a shovel/brush/water spray will do it.

While not particularly applicable to most home shops, I suppose it depends on what kind of magnet and how old, but things have changed considerably from what you suggest, as well as how you do your setup on the magnets, there are some very strong magnets out there now, some designed for milling.

It's just a guess, but the likely source of magnesium rims is in very high end rims where the minor difference in weight makes a difference or at least the perceived difference, most 'consumer grade' 'mags' are aluminum. That said, if you aren't sure, test it before use.

FWIW, others may disagree but it's not their machine. Advice on what might be the best way or pitfalls to look out for can be helpful but you own it so do what works for you.

And, a stub drill helps as well.

It is an auction, I've seen a clapped out Bridgeport in boxes go for more than a reasonably nice, completely assembled machine, it just depends on who is willing to pay for it and how badly.

Where's the fun in that, why buy something when you can make it for 5 times the price?;)

And, because there is no size, just a '76RT' designation, they can't even be checked with a CMM? I would think someone ought to know the dimensions.

I'd like a copy as well, please!

What, you have opticians that can grind a lens perimeter, opticians around here buy their lenses from one of three companies that own the industry?😲 My optometrist that requires a 'dispensing optician' on staff, buys from the Zeiss lab in Vancouver, a 40 hour, non-stop drive away.

Here's a good video, it doesn't require any special tools apart from a glass cutter, and the diamond should work. The applicable part is at around 8 minutes into the video.

With safety in mind, pretty much anything is worth a try.

FWIW, you can do bevel gears with only a straight cut, but you have to use a tooth form cutter suitable for the outer diameter and that means it will contact only at the outside end of the teeth, the two/three cut method is better as it provides better/more contact. There is complete...

When I initially gave the description, it was relative to the other survey equipment the OP said it was with, generically, a goniometer is anything that measures or facilitates setting angles.