Garden Railway Forum

BTW you are indeed correct when you say it is narrow gauge loco.
Prototype runs here:
https://www.ffestiniograilway.org.uk/ga ... ountaineer

Mountainer was one of the 100 locos ordered by British War Department for service in France during 1st World War, to be built in USA by ALCO. I see no reason why a competent model engineer couldn't customise the appearance and details to suit his ideas, but using sound basic design available in ME a...

Like I've said in my comment on Youtube it is probably based on Don Young's Mountaineer.
Series of articles started in Model Engineer Vol 139, No 3467, June 1973
Here is the GA from the first part:

dewintondave wrote: ↑Mon May 11, 2020 9:15 am ...Hmmm, I wonder which to go for? ...

I like flat one better, but both are equally plausible - you can find prototype for each

p.s. pictures are better as well

Huh, I never knew about any real differences between the two... They are not really significant in a grand scheme of things :mrgreen: but to OCD afflicted, anally retentive old git like me, they are interesting... ...You seem to know more about Airdmillan & Bundy than I do! :lol: I enjoy resear...

...Aye, Airdmillan is up the front of our storage compound. Like most things at Woodford, it looks worse than it really is... Good to have confirmation :thumbright: It's the last steam loco (I understand) build by Fowler in UK. ...Here's the only shot I have of the loco... Yes, that's her allright....

Thank you for your very kind (and generous :D ) comments Old Man Aaron :thumbright: I enjoyed your blog, in particular this post: https://anzaccreekworkshops.blogspot.com/2019/10/detailing-your-roundhouse-fowler.html Whilst it is different prototype to my loco, family resemblance, many identical com...

Best way to add weight is to use tungsten
It is approximately 1.75 denser than lead.
It is expensive, but if space is limited...
You can get it on Bay

... I cannot see why you would cross pin the crank pins to the cranks. I could not find where B. W mentions this in the book ??... There it is (scanned from the book): https://live.staticflickr.com/65535/49868821548_75c7dd80c8_o.png I guess it's another poetic licence by the illustrator and book's ...

Next update is about cranks. First a "test run" to make sure everything works as planned :thumbright: I have spare axle with wheel from when I was making them, so will use this and one test crank to check some of my ideas. Each crank starts as a rectangle of steel, with holes drilled and r...

GTB wrote: ↑Sun Apr 26, 2020 11:07 am ...Don't overthink things...

Yes, you are right, should have calculated things, before making flippant comments.
As you say wall thickness in our application is limited by practicality of using it rather than max pressure.

Nice work Dave :thumbright: I am slightly confused :scratch: , because you've said before that you are not planning to have sprung axleboxes, but looking at your last photo (too small to be totally sure) there appear to be pockets for axlebox springs? Any chances of close up photo and clarification ...

...3/32" tube slides into a 1/8" tube That would imply 0.4mm (27 SWG) wall thickness for the 1/8" tube ... Rather thin? but clearly it works OK for you :thumbleft: Maybe it is also the function of the steam pressure? Steam pressure in 16mm locos tends to be lower than what it is for ...

...I will look it up later... thank you ...This is why I take the time and effort to do full 3D and 2D drawings and go back and edit them and have them updated... that's professional way of doing things :thumbup: ...Note, be careful using "Pipe" dimensions as this refers to the bore/inter...

Thank you Graeme, 25 swg is smack in the middle of what's available from my supplier :D and it leaves 2mm dia delivery hole in middle. Sounds just about right - good to have confirmation :thumbright: As for stainless, I am still long way off before I need it, but I have filed the info. BTW - what is...

On Brian Wilson's Eric (and few other designs I looked at) steam pipe is quoted as 1/8" dia tube, but nobody ever mentions the wall thickness... :oops: I can get 1/8" copper tubing in following SWG - 27, 26, 24, 22, 20 (or for metric guys from 0.4mm to 0.8mm wall thickness). Which size of ...

thank you guys,
so it is aluminium body ...
I was aware about aluminium and plastic ones, but was hoping to find steel body ones.
It will be interesting to see how will aluminium perform long term in this particular application.

Where did you find M3 heim/ball joint
or are you making it yourself as well
when I tried to source some, the smallest I could find in steel was M5 or M6
anything smaller was either plastic or aluminium...

:D It took two attempts to get pony truck frame right ... and the second time I put (almost) as much time into making a fixture that held everything for silver soldering as I did into making the bits for the frame :thumbup: but I got it right in the end - if you look closely at the photos you will s...

Thank you Dazza! Any praise coming from you, is particularly nice indeed :thumbright: It would have been great to have mouldings from Mike in NZ for both pony truck frame and axleboxes. Maybe next time... For now it is just rough, coarse representation of swing link truck in the prototype, but it wi...