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Re: Charles - Penrhyn Mainline Hunslet

Posted: Thu Sep 09, 2021 2:14 am
by dewintondave
This end-of-workbench clamp makes sawing sheet a pleasure

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Re: Charles - Penrhyn Mainline Hunslet

Posted: Tue Sep 14, 2021 12:27 am
by dewintondave
Starting off the smokebox door hole with a holesaw, the rest had to be bored out

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Re: Charles - Penrhyn Mainline Hunslet

Posted: Wed Sep 15, 2021 11:37 pm
by dewintondave
Progress shot! After lots of boring, sawing, and filing. I love all that stuff

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Re: Charles - Penrhyn Mainline Hunslet

Posted: Fri Sep 17, 2021 1:00 pm
by Old Man Aaron
When properly engineered, even the simplest of parts are a joy to look at. :)

Re: Charles - Penrhyn Mainline Hunslet

Posted: Fri Sep 17, 2021 11:37 pm
by dewintondave
Old Man Aaron wrote: Fri Sep 17, 2021 1:00 pm When properly engineered, even the simplest of parts are a joy to look at. :)
They do Aaron :thumbup:

Here's the back plate from 4mm hot rolled steel. I wanted it thicker to engage better with the boiler shell. The profiles were scribed from the front plate. The hole will be a lot bigger

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Re: Charles - Penrhyn Mainline Hunslet

Posted: Tue Sep 21, 2021 8:05 am
by dewintondave
That's a big hole for the boiler barrel, turned in the lathe on a faceplate. I'm just sawing off the excess before grinding and filing to profile. I used the bench grinder, very satisfying. Lots of checking with the digital caliper to get the curve even

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Re: Charles - Penrhyn Mainline Hunslet

Posted: Wed Sep 22, 2021 3:05 am
by Old Man Aaron
Very tidy - and a damn sight quicker than chain-drilling and filing! :oops:

Re: Charles - Penrhyn Mainline Hunslet

Posted: Mon Sep 27, 2021 5:47 am
by dewintondave
Old Man Aaron wrote: Wed Sep 22, 2021 3:05 am Very tidy - and a damn sight quicker than chain-drilling and filing! :oops:
Whatever it takes to get the job done :thumbup:

Checking the fit with the boiler barrel material, I bought that about 10 years ago from Macc Models, for this model :D

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Re: Charles - Penrhyn Mainline Hunslet

Posted: Sun Oct 03, 2021 11:06 pm
by dewintondave
Marking out the smokebox wrapper, needing to saw off a thin strip to true up the edge

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Re: Charles - Penrhyn Mainline Hunslet

Posted: Mon Oct 11, 2021 2:37 am
by dewintondave
Turning down the bending radius for the smokebox wrapper. I used this for forming the Large De Winton boiler shell in 2006!

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Re: Charles - Penrhyn Mainline Hunslet

Posted: Tue Nov 16, 2021 2:26 am
by dewintondave
Here's the first build log. The rolling chassis


Re: Charles - Penrhyn Mainline Hunslet

Posted: Fri Nov 26, 2021 7:08 am
by dewintondave
The steel smokebox shell, and chimney


Re: Charles - Penrhyn Mainline Hunslet

Posted: Thu Dec 09, 2021 2:52 am
by dewintondave
Fitting the smokebox to the frames, and a start on the cylinders