The Myfordboy Steam Roller. Part 2 Boiler. A Re -Engineered Mamod

Continuing with the build this time the boiler is made and a first steam test.
Please visit myfordboy.blogspot.com for more information on this project.

[@russtuff]

I find the older I get the more interested I am in old technology. Steam engines fascinate me :)

[@gth042]

Beautiful. A Master at play.

[@loricastro3772]

Great job, thanks a lot for sharing!

[@RetroSteamTech]

Great job 👍👍👍 I like your high tech hydraulic pressure tester 👍🤣 Cheers, Alan.

[@myfordboy]

Amazing what pressure you can get from a cheap spray bottle.

[@RonaldWalters2010]

Second! :-)

[@stovepipe666]

Nice work

[@jdmccorful]

Nice work! Have you ever seen a "turbo torch" used in refrigeration tubing and piping ? It has different size tips that you can control the heat with when brazing.

[@myfordboy]

Yes I have, but not suitable for boiler making imo as you need to heat a large surface, not just where the joint is. The Sievert set I have has a number of different burners the largest has an output of 85kw.

[@BruceRobinson-tz8cj]

Nice video. Re flanging, do you think that 3D printing flange blocks could be applied on some if not all components?

[@myfordboy]

Yes I have used 3d printed formats and the work fine.

[@timothyboles6457]

Interesting that you didn't flange the boiler end caps. How think of material did you use? I've heard about people talking about doing a small boiler this way, but hadn't seen anyone do it

[@johngroenen]

I did it also with a small vertical boiler. 3mm thick disc, 42mm in diameter. 9 flame tubes 8/6mm. Outer shell is 67mm. The outer shell does have flanged plates.

[@myfordboy]

I used 2mm end plates. I used a similar method on my Ellie tram engine which was a published design.

[@johngroenen]

What is the thickness of the copper plate? I am playing with the idea of making a new boiler with firebox for my wilesco roller

[@myfordboy]

I used 0.5mm for the tube and the ends are 2mm.

[@etherealbolweevil6268]

Sir. I am intrigued by how the firebox end plate was fitted over the top boiler bushing, did you make a clearance hole without showing us?

[@myfordboy]

The front firebox plate has a cut out at the bottom of the hole for the barrel. The barrel is inserted upside down then rotated into th correct position.

[@etherealbolweevil6268]

Thanks. I do like the firebox and tubeless boiler concept in this design. @@myfordboy

[@williamsworkshopuk]

7:17 - no flanges on the bronze plate?

[@myfordboy]

Simplified construction. 2mm plate. Bronze because I had a bit in stock. This is the same construction as used in the popular Ellie tram engine model.

[@williamsworkshopuk]

@@myfordboy is that because of the lower working pressure makes it suitable? I'm making my way through your TE again and finding it very enjoyable.

[@myfordboy]

Glad you like the traction engine. I belive the method of unflanged plates it common in Austrailia.

[@silasmarner7586]

First!

[@skysurferuk]

As a kid, I remember every Mamod steam engine ran by throwing hot water across the room. Crap design, with crap tolerances. Good luck improving this one.