Part 4 - Bearing Journals

Part 4 of how to build the Stuart Number 9 Mill Engine.
This episode we establish the mounting surfaces for the bearings. These have to be very accurately machined to ensure that they are perpendicular to the cylinder. Once again it is excitement on a level rarely seen. Yes that's right, excitement is rarely seen! One good goof though.

[@modellingmark]

You were very restrained when you crashed the collet nut into the casting! I love the way you clearly explain the setup for each operation.

[@CreaseysWorkshop]

I was so lucky it didn’t break. It could have been a huge disaster.

[@624Dudley]

I’m all for double and triple checking important dimensions. 👍

[@CreaseysWorkshop]

I am very nervous about screwing up these lovely castings.

[@Preso58]

What is it with the naming conventions of Stuart engines? The #9 is bigger than the #8 but the #10 is smaller than both the #8 and #9! Was it to do with when the kits were released?
Regards,
Preso

[@CreaseysWorkshop]

Yes I think it’s just the order that they were released up till the 10. After that they started using names like sirius, Victoria etc. It’s a miracle they still exist. They once made a generator for Shackleton’s Antarctic expedition.

[@Rustinox]

Wasn't it possible to cut the thwo surfaces (the last ones) in the same setup as all the rest? Just a thought.

[@CreaseysWorkshop]

Yeah I could have. I thought I would get curved sides but actually that would have been very minimal so it would probably have been better. Certainly much faster as it took me 3 tries to get that setup to work.