Small Boiler

[editor@glue-it.com]

Hi, have been learning how to form the endplates for a boiler, used a hammer to round the edges:


But then decided to make a forming tool


Made two endplates for the traction engine boiler


then drilled holes and made up 7 off 3/16" pipes using brake tubing


More info around the heat treatment is here
glue-it.com

The next stage is to make up the other fittings and silver solder it all together, Best regards, Nigel

[Savage11]

Keep us updated OP!

[editor@glue-it.com]

I've turned up the smokebox, these are the basic forms that are coming together

The beam is just cut to size at the moment and needs to be drilled and threaded in the future.

The bottom end of the chimney has taken some time to machine, the curve was machined as a taper and then by hand I made the curve. The bottom surface that is curved to fit the smokebox was machined using a flycutter.

A nice feeling when it starts to look right.

[Savage11]

Its coming along nicely, very cool indeed.

[editor@glue-it.com]

It's a mix of making parts, drawing the plans as I go and then sometimes remaking parts. I'm using images of a 6NHP Burrell for inspiration and gradually adding detailed design around each element. Any help with respect to the design and tooling around the manufacture would be most welcome.

[editor@glue-it.com]

I re-turned the lower chimney section


Some hand turning, take extreme caution if you're going to try this...


This was my first attempt at riveting and I made the rivet punch


As you can see I'm creating drawings as I go and will share more details on the full build: Miniature Burrell Smokebox

[thehomeengineer]

Hi
Nice to see your build. This is a really good project.
I have a web site which has some details of my traction engine build. It might be of help for your build. There is a couple of sections on the copper boiler making. Practical Engineering
I hope you find this is helpful towards your excellent engine build.
The Home Engineer

[editor@glue-it.com]

This originally started as a discussion around the boiler and I'll come back to that soon, In the meantime I'm gradually picking off the parts to make:

The rear wheel rims were machined from 4 inch diameter mild steel stock, I roughed out the size and then switched to a 4-jaw chuck and DTI

These then got machined with the inner beads and finished 97mm overall diameter

the treads were machined on the milling machine, this took some time to setup the 10° angle, align the wheel with a DTI in the chuck again and centre the milling bit

I'm pleased with the result, more details of the setup and discussion, drop me a line if you want to know more, best regards, Nige

[editor@glue-it.com]

I machined one tread and then didn't take enough time setting up the opposite angle, the old saying "measure twice, cut once" is still ringing in my head and so I had to make another complete wheel, at last I have a pair:

More details are here: https://www.glue-it.com/wp/gallery/r...el-tread-pair/

I also took a picture of my parts made and bought to date:


I'm gradually creating the drawings as I go and collecting these into a set of plans - need to think about how I'm going to make these available to others....thoughts?

[editor@glue-it.com]

My Record BS250 bandsaw is great, but not very good when it comes to cutting thin materials such as the brass I'm using for the wheel spokes. I thought up this simple modification to the table:

The MDF table is fixed to the main table from underneath, removing the gap under the fence, adding support around the blade and removing the step around the blade: Cutting Brass on a Bandsaw