I've not posted anything for a while so thought I might put this up for your amusement.
I made some spigot spacers for my Vectra disks which are bigger diameter than the standard Astra ones at 288mm. They also have a larger centre hole than the standard Astra disks. Hence the spacers.
So I chopped a length of 70mm dia from a larger bar and stuck it in the lathe.

Cleaned it up and drilled a hole on the centre with the biggest drill bit I have.

Bored the centre hole out to match the Astra hub. (this takes a while and would be better to start with a pipe, but gotta use what's at hand. Well that's what machines are for ....!)

Then parted off several pieces. The brake disk is 7mm thick so I made the spacers 6mm to make sure they didn't foul the wheel fitting.

Chamfered all the inner and outer edges to clean them up.

And here we are, well if you're gonna make a pair may as well make some more at the same time :Banane44:

Fits the disk nicely

And here we are fitted to the hub ... nice snug fit ....

Next job is to drill the disks to four stud ...