Starting to reduce diameter for the bottom cover. The notes I have imply that the supplied stock is 35mm ground cast iron – the material I have isn’t ground so needs a bit of tidying up.
Different view of the same job.
Using the Warco digital scale to cut the shoulder down to the correct depth.
Once the spigot had been drilled and a 5/16th thread cut the parting tool came out.
Then the part was reversed, mounted in the 3-Jaw and the spigot / rebate (?) cut to ensure a nice fit in the cylinder. I’ve reamed the hole out to 4mm to use 4mm silver steel as I don’t have a 5/32” reamer.