Charles - Penrhyn Mainline Hunslet

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dewintondave
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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Tue Mar 03, 2020 11:35 pm

It's been so hot and dry that I haven't been venturing out to run anything on the line. So I have been making some progress on the frames. I have been closely looking at pictures of the real thing to work out axle box dimension, I thought I'd better make proper axle boxes even though they may not be sprung

Milling the axle box slots in the frames
rsz_img_20200219_170602.jpg
IMG_20200218_151330.jpg
IMG_20200225_144206.jpg
IMG_20200229_180139.jpg
Finish milling the axle boxes - end mill sharpened on the bench grinder :D
IMG_20200302_164806.jpg
Best wishes,
Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by LNR » Wed Mar 04, 2020 2:41 am

Nothing like a bit of sharpening on the bench grinder to keep your eye in. Another great build moving along.
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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Sat Mar 21, 2020 7:00 am

Re-cutting the distinctive front cut-out to better match pictures of the original

rsz_img_20200321_161402.jpg

rsz_hunslet_charles_penryn_20050601_3.jpg
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by tom_tom_go » Sat Mar 21, 2020 7:58 am

Why does the prototype have that cut out, is it purely cosmetic?

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Sat Mar 21, 2020 9:50 pm

tom_tom_go wrote:
Sat Mar 21, 2020 7:58 am
Why does the prototype have that cut out, is it purely cosmetic?
I don't know. Perhaps it's to give it a graceful swallow-like appearance befitting a mainline engine ;)
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by Keith S » Sun Mar 22, 2020 4:40 am

dewintondave wrote:
Sat Mar 21, 2020 9:50 pm
[quote=tom_tom_go post_id=152022 time=<a href="tel:1584777506">1584777506</a> user_id=395]
Why does the prototype have that cut out, is it purely cosmetic?
I don't know. Perhaps it's to give it a graceful swallow-like appearance befitting a mainline engine ;)
[/quote]

The Ffestiniog locos have a leading axle, and are 2-4-0 now: maybe this has something to to with that cut-out in the frame.

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Thu Apr 02, 2020 3:47 am

Manual CNC'ing the radii of the central slot

rsz_img_20200402_152417.jpg
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by TonyW » Thu Apr 02, 2020 11:00 am

Keith S wrote:
Sun Mar 22, 2020 4:40 am
The Ffestiniog locos have a leading axle, and are 2-4-0 now: maybe this has something to to with that cut-out in the frame.
The frames were also extended at the front (by about 8 inches, IIRC) when the pony trucks were fitted.
Last edited by TonyW on Fri Apr 03, 2020 12:07 pm, edited 1 time in total.
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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Thu Apr 02, 2020 10:55 pm

TonyW wrote:
Thu Apr 02, 2020 11:00 am
Keith S wrote:
Sun Mar 22, 2020 4:40 am
The Ffestiniog locos have a leading axle, and are 2-4-0 now: maybe this has something to to with that cut-out in the frame.
The frames were also extended at the front (by about 8 inches, IIRC) at the front when the pony trucks were fitted.
It's awful what they did to those locos, even fitted piston valves to Blanche
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by TonyW » Fri Apr 03, 2020 10:19 am

dewintondave wrote:
Thu Apr 02, 2020 10:55 pm
It's awful what they did to those locos, even fitted piston valves to Blanche
I'd be interested to read your thoughts on what should have happened to them.

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Fri Apr 03, 2020 10:32 pm

TonyW wrote:
Fri Apr 03, 2020 10:19 am
dewintondave wrote:
Thu Apr 02, 2020 10:55 pm
It's awful what they did to those locos, even fitted piston valves to Blanche
I'd be interested to read your thoughts on what should have happened to them.
IMO, they should be as near as the original as possible Tony. Unless they have repented I hope they don't get their hands on Charles ;)
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by TonyW » Sat Apr 04, 2020 10:20 am

dewintondave wrote:
Fri Apr 03, 2020 10:32 pm
IMO, they should be as near as the original as possible Tony. Unless they have repented I hope they don't get their hands on Charles ;)
Interesting, thank you. In my view, IF they had been left in original condition they would have been of no use to the Festiniog for a variety of reasons including poor lubrication, poor frame design, insufficient fuel capacity and too big for Garnedd tunnel. I think it fair to say that if the FR had not taken them then their future would have been very different (export to the USA maybe?), as would have been the future of the FR.
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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Sun Apr 05, 2020 2:43 am

TonyW wrote:
Sat Apr 04, 2020 10:20 am
Interesting, thank you. In my view, IF they had been left in original condition they would have been of no use to the Festiniog for a variety of reasons including poor lubrication, poor frame design, insufficient fuel capacity and too big for Garnedd tunnel. I think it fair to say that if the FR had not taken them then their future would have been very different (export to the USA maybe?), as would have been the future of the FR.
Thank you Tony. Let's hope Charles remains original
Best wishes,
Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Tue Apr 14, 2020 5:57 am

Got the keepers finished. Next job axle boxes

rsz_img_20200414_114412.jpg
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by FWLR » Tue Apr 14, 2020 7:35 am

Nice work Dave. :thumbright:
Rod

Life is so easy when I run my trains. :thumbright:

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