Member postings for Jim Nic

Howi

Nice looking job on Sophie, she's a good runner too. Well done.

Jim

I'm with JS. I used the bent shaft method to mount Spitfire and Hurricane models on a single base and gave an appearance of a close formation banked turn. The bend was close to the top.

I also made a small top hat plug to fit in the aircraft fuselage to add strength where the shaft fitted. Sorry no pictures, it was a few years ago.

Jim

I am not normally an Elf''n'safety jobsworth but I would be VERY wary of using gloves when machining, especially if my fingers lacked feeling.

If your budget allows it insulation, and loads of it, (for the garage as well as you) would be a good first move.

Jim

Edited By Jim Nic on 25/02/2017 22:16:02

Today I finished making the parts for the Jowitt poppit valve engine drawn by Jason B. I’ve made few changes from Jason’s build log, mainly in materials to suit what was to hand and fabricated flywheels rather than use castings, but it’s taken a while longer than Jason did.

All (all??) I have to do now is get it running and paint it up.

Paul

I have used both the methods you are considering. For the studding method I use some Loctite to keep the bits together with some success.

For grinding the back of a die I hold it in a tailstock die holder to save my fingers from the wheel and the heat generated and the fact that you have a small grinding wheel is an advantage as you will form a concave recess on the die. Just make sure you grind the unmarked face!

Even with a ground die I doubt you will get your plug to seat unless you either undercut the male thread or recess the female.

Jim