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Charles - Penrhyn Mainline Hunslet
Posted: Sat Dec 07, 2019 8:30 am
by dewintondave
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
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 (54.38 KiB) Viewed 11550 times
Re: Charles - Penrhyn Mainline Hunslet
Posted: Mon Dec 09, 2019 4:52 am
by Keith S
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.
Re: Charles - Penrhyn Mainline Hunslet
Posted: Mon Dec 09, 2019 6:16 am
by dewintondave
That's it Keith, no need to worry
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
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Re: Charles - Penrhyn Mainline Hunslet
Posted: Wed Dec 18, 2019 7:00 am
by dewintondave
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
Re: Charles - Penrhyn Mainline Hunslet
Posted: Wed Dec 18, 2019 11:43 am
by GTB
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
Re: Charles - Penrhyn Mainline Hunslet
Posted: Wed Dec 18, 2019 10:57 pm
by dewintondave
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
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
Re: Charles - Penrhyn Mainline Hunslet
Posted: Fri Dec 20, 2019 11:16 am
by bambuko
dewintondave wrote: ↑Wed Dec 18, 2019 10:57 pm
It turned out to be rather pleasurable Graeme
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
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
Re: Charles - Penrhyn Mainline Hunslet
Posted: Thu Dec 26, 2019 1:07 am
by dewintondave
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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Re: Charles - Penrhyn Mainline Hunslet
Posted: Fri Jan 03, 2020 2:07 am
by dewintondave
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
Here we are setting up the frame to mill the end face
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Re: Charles - Penrhyn Mainline Hunslet
Posted: Wed Feb 05, 2020 4:07 am
by dewintondave
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
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- rsz_img_20200205_165351.jpg (66.03 KiB) Viewed 10738 times
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This is the latest state of play
Re: Charles - Penrhyn Mainline Hunslet
Posted: Thu Feb 06, 2020 8:59 pm
by tom_tom_go
Fine work Dave, I am many years behind!
Re: Charles - Penrhyn Mainline Hunslet
Posted: Sat Feb 08, 2020 11:02 am
by FWLR
Love your work Dave. You have a skill I truly admire...
Re: Charles - Penrhyn Mainline Hunslet
Posted: Sat Feb 08, 2020 9:48 pm
by dewintondave
Thanks lads! Get stuck-in, this hobby is a very therapeutic
Re: Charles - Penrhyn Mainline Hunslet
Posted: Tue Feb 25, 2020 10:35 pm
by LnBmad
what a great start dave! i will enjoy watching the build thread on here.
Re: Charles - Penrhyn Mainline Hunslet
Posted: Wed Feb 26, 2020 12:08 am
by dewintondave
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
Re: Charles - Penrhyn Mainline Hunslet
Posted: Tue Mar 03, 2020 11:35 pm
by dewintondave
Re: Charles - Penrhyn Mainline Hunslet
Posted: Wed Mar 04, 2020 2:41 am
by LNR
Nothing like a bit of sharpening on the bench grinder to keep your eye in. Another great build moving along.
Grant.
Re: Charles - Penrhyn Mainline Hunslet
Posted: Sat Mar 21, 2020 7:00 am
by dewintondave
Re-cutting the distinctive front cut-out to better match pictures of the original
- rsz_img_20200321_161402.jpg (34.2 KiB) Viewed 9002 times
- rsz_hunslet_charles_penryn_20050601_3.jpg (33.42 KiB) Viewed 9002 times
Re: Charles - Penrhyn Mainline Hunslet
Posted: Sat Mar 21, 2020 7:58 am
by tom_tom_go
Why does the prototype have that cut out, is it purely cosmetic?
Re: Charles - Penrhyn Mainline Hunslet
Posted: Sat Mar 21, 2020 9:50 pm
by dewintondave
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