Charles - Penrhyn Mainline Hunslet

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dewintondave
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Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Sat Dec 07, 2019 8:30 am

Back in 2011, I bought boiler shell material for Keith Bucklitch's "Charles" loco design, I had also turned the wheels. But then I shelved the plan and went on to build the Live Diesel, using the wheels on that locomotive. I now have two large scale Penrhyn steam locos and feel enthused to make a start on this fine "mainline" loco. I am planning on concurrently building a completely different loco as well, so these projects will take a lovely long time. I've been checking my stock, I have one more unused pressure gauge :thumbup:

Years ago I scanned and .pdf'd Keith's Garden Rail "Building Charles" 8-part series from which this general arrangement is taken
Charles.JPG
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Last edited by dewintondave on Sat Dec 14, 2019 2:37 am, edited 1 time in total.
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by Keith S » Mon Dec 09, 2019 4:52 am

Good, haha I was worried you were going to rest on your laurels a bit after the ossie Hunslet and I wouldn't be able to look forward to seeing your build updates. Looks like I was worried for no reason.

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Mon Dec 09, 2019 6:16 am

That's it Keith, no need to worry :D

It's been too windy to run the new loco so I've made a start cutting the wheel blanks - the hard way! I used to use the bandsaw at work... Now I'm using a parting tool down to about 1" diameter and then hacksawing the remainder. It's the first time to use the backgearing of the lathe in a long time and I'd nearly forgotten how. My target was to produce one wheel blank per day, but missed a day yesterday :D
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Wed Dec 18, 2019 7:00 am

It's far too windy to run the new loco, so I've been turning wheels
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This is the front face of the wheel and this recess will be painted black
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by GTB » Wed Dec 18, 2019 11:43 am

dewintondave wrote: Mon Dec 09, 2019 6:16 am It's been too windy to run the new loco so I've made a start cutting the wheel blanks - the hard way! I used to use the bandsaw at work... Now I'm using a parting tool down to about 1" diameter and then hacksawing the remainder.
That's definitely doing it the hard way.

When I got into garden scale I started cutting some wheel blanks with a hacksaw. I got about 1/4” into the first cut, got in the car and came back an hour later with a 4” x 6” bandsaw in the boot. Best $400 I've ever spent............. ;)

Will this Charles be 7/8” scale?

Regards,
Graeme

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Wed Dec 18, 2019 10:57 pm

GTB wrote: Wed Dec 18, 2019 11:43 am
That's definitely doing it the hard way.

When I got into garden scale I started cutting some wheel blanks with a hacksaw. I got about 1/4” into the first cut, got in the car and came back an hour later with a 4” x 6” bandsaw in the boot. Best $400 I've ever spent............. ;)

Will this Charles be 7/8” scale?

Regards,
Graeme
It turned out to be rather pleasurable Graeme :D The parting was aided by syringing-in cutting oil using the trusty lubricator draining syringe. And, with an 18tpi hacksaw blade, the 1" was easy to cut, again with cutting oil.

1" Scale. It's a lovely scale to scale up to from 16mm scale metric drawings, just divide the dimension by 16 and that's the new size in inches. Charles' drawings are imperial though :thumbup:
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by bambuko » Fri Dec 20, 2019 11:16 am

dewintondave wrote: Wed Dec 18, 2019 10:57 pm It turned out to be rather pleasurable Graeme :D The parting was aided by syringing-in cutting oil using the trusty lubricator draining syringe. And, with an 18tpi hacksaw blade, the 1" was easy to cut, again with cutting oil....
+1 on that :thumbleft:
I cut all my wheels with hacksaw and it's no bother at all.
Simply no space left in my tiny workshop for a bandsaw :cry:

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Thu Dec 26, 2019 1:07 am

I seized the opportunity Christmas presented in the early evening and finish turned the wheels
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The wheel turning mandrel wasn't true in the 3-jaw chuck, so I used the 4-jaw. Even with the extension, the set-up was rigid enough for the 3 mm deep LGB flanges
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Fri Jan 03, 2020 2:07 am

Whilst looking at my steel sheet for making frames I remembered all those years ago I'd already got steel strip in for them, and there it was oiled-up on my stock shelf in the garage :thumbup:

Here we are setting up the frame to mill the end face
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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Wed Feb 05, 2020 4:07 am

The weather's too hot for running the new loco so I've been doing some more work on the frames, making the distinctive buffer beams. I filed the radii this time :thumbup:
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This is the latest state of play
Last edited by dewintondave on Fri Feb 07, 2020 1:12 am, edited 1 time in total.
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by tom_tom_go » Thu Feb 06, 2020 8:59 pm

Fine work Dave, I am many years behind!

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Re: Charles - Penrhyn Mainline Hunslet

Post by FWLR » Sat Feb 08, 2020 11:02 am

Love your work Dave. You have a skill I truly admire...

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Sat Feb 08, 2020 9:48 pm

Thanks lads! Get stuck-in, this hobby is a very therapeutic :thumbup:
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Dave

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Re: Charles - Penrhyn Mainline Hunslet

Post by LnBmad » Tue Feb 25, 2020 10:35 pm

what a great start dave! i will enjoy watching the build thread on here.
If it can be made full scale it can be made 16mm

My line: http://gardenrails.myfreeforum.org/about7200.html

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Re: Charles - Penrhyn Mainline Hunslet

Post by dewintondave » Wed Feb 26, 2020 12:08 am

LnBmad wrote: Tue Feb 25, 2020 10:35 pm what a great start dave! i will enjoy watching the build thread on here.
Nice to have you back :thumbup:
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Dave

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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
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Finish milling the axle boxes - end mill sharpened on the bench grinder :D
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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.
Grant.

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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

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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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