Llewellyn Loco Works #1

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Hydrostatic Dazza
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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Mon Aug 12, 2019 6:23 am

DonW wrote:
Sun Aug 11, 2019 11:39 pm
It is always a good moment when something passes a test. Mind you having seen the photos of your soldering I think we all would have been surprised if it did leak.

Don
Thanks Don, I have a head start with Brass and Silver brazing, I have been involved with making steel bicycle frames for 40 years now.
Cheers from Dazza, The Hydrostatic Lubricator 8)
The chances of finding out what’s really going on in the universe are so remote, the only thing to do is hang the sense of it and keep yourself occupied. Douglas Adams

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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Fri Sep 13, 2019 9:26 pm

Why progress is slow on the little loco and the "Potters Orchid Railway" I around the 12.30 mark talking to engineering legend Peter Olds. I was fireman on 967 for the day. I had a drive with 8 on the hook the next day.
https://www.youtube.com/watch?v=v1O4DHw ... DxwQeklH9w
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Re: Llewellyn Loco Works #1

Post by DonW » Fri Sep 13, 2019 11:49 pm

Nice video, like the locos.
Don

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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Wed Sep 18, 2019 11:45 pm

A simple job started, but it was nice to be in the Red Room last night with ABC jazz on the radio working on my little choo choo.

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Cheers from Dazza, The Hydrostatic Lubricator 8)
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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Thu Sep 19, 2019 9:55 pm

A little package arrived at the Llewellyn Locomotive Works from "Stannier Engineering" yesterday.
The workshop manager studies the smoke box saddle casting in his usual pensive manner as the head hand tries to get his head around it. Nice fella but dim at times.
Cast in White Bronze this new investment casting looks sweet.


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Cheers from Dazza, The Hydrostatic Lubricator 8)
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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Thu Sep 19, 2019 9:57 pm

In the drought stricken Queensland (all of Australia) there is progress on the front foot plate.
Holes all drilled and 10 BA threads done.
A bit more milling and it will be done.


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Cheers from Dazza, The Hydrostatic Lubricator 8)
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Re: Llewellyn Loco Works #1

Post by DonW » Fri Sep 20, 2019 10:23 pm

Hi Dazza
That casting looks very good. Did you make a master first? That will be bolted down onto the footplate you are making all looking very neat,

Don

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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Fri Sep 20, 2019 11:01 pm

DonW wrote:
Fri Sep 20, 2019 10:23 pm
Hi Dazza
That casting looks very good. Did you make a master first? That will be bolted down onto the footplate you are making all looking very neat,

Don
I draw the part in 3D and checked all in my full assembly model. Every part is done this way and then converted to a 2D workshop drawing. I drew another 3D part with some machining allowance added and then sent that file (STL version) to Mike at Stannier Engineering in NewZealand and he prints the wax part and the foundry make the shell mold with the wax and then do the investment casting. Then the postman delivers it to my door. The process takes 2-3 weeks. I have done this for the steam chest covers and the expansion link supports. Pics of this earlier in this thread some where. This all takes time but when the loco is completed and running there will be a full set of proven and accurate drawings for every part, without all the made up bits and vagaries and ommissions that I have have suffered in previous drawings.

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Cheers from Dazza, The Hydrostatic Lubricator 8)
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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Fri Sep 20, 2019 11:03 pm

1001 uses for small cut off discs. I simply love em.

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Re: Llewellyn Loco Works #1

Post by DonW » Sat Sep 21, 2019 1:02 pm

[/quote]

I draw the part in 3D and checked all in my full assembly model. Every part is done this way and then converted to a 2D workshop drawing. I drew another 3D part with some machining allowance added and then sent that file (STL version) to Mike at Stannier Engineering in NewZealand and he prints the wax part and the foundry make the shell mold with the wax and then do the investment casting. Then the postman delivers it to my door. The process takes 2-3 weeks. I have done this for the steam chest covers and the expansion link supports. Pics of this earlier in this thread some where. This all takes time but when the loco is completed and running there will be a full set of proven and accurate drawings for every part, without all the made up bits and vagaries and ommissions that I have have suffered in previous drawings.

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[/quote]

Thanks Dazza. I didn't realise they could print off the wax part from a drawing to such quality. I know people have been 3D printing master but thought these needed a fair bit of cleaning up.
Don

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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Sat Sep 21, 2019 9:08 pm

Don, go here
https://www.flickr.com/photos/151366293 ... 945260417/
for examples of the detail possible, note the small text on the castings.
The possibilities opening up are immense for model engineering.
Cheers from Dazza, The Hydrostatic Lubricator 8)
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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Sat Sep 21, 2019 9:18 pm

At the world wide head quarters of the Llewellyn Locomotive Works the drawing staff generated a plot to chain drill the front foot plate. It may seem fussy but it makes the final hand filing smooth and easy. One has to love DRO on the mill drill.

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After zero progress on the little loco and the POR garden railway it was nice to bolt this part on with 8 BA hex. No slotted screws are allowed to be seen on the exterior of this loco.

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Saddle casting and the completion of the cab foot plate are the next steps, then the smoke box so the boiler can be trial fitted to the frames.
Cheers from Dazza, The Hydrostatic Lubricator 8)
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Re: Llewellyn Loco Works #1

Post by tom_tom_go » Sat Sep 21, 2019 9:20 pm

That looks the nuts Dazza!

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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Sun Sep 22, 2019 10:34 pm

Clean up the bottom of the new smoke box saddle casting.

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I do not spot through, I clock off a true edge and use the DRO. Sanity marks before using the DRO.

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Trimming the 10 BA hex bolts.

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Fit up

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Cheers from Dazza, The Hydrostatic Lubricator 8)
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Re: Llewellyn Loco Works #1

Post by Hydrostatic Dazza » Sun Sep 22, 2019 10:47 pm

The head fitter and his side hand , or rather paw are pondering the smoke box. The drawing office has generated the required drawings and the materials are to hand.

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Cheers from Dazza, The Hydrostatic Lubricator 8)
The chances of finding out what’s really going on in the universe are so remote, the only thing to do is hang the sense of it and keep yourself occupied. Douglas Adams

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