N&W S1a Project - Tender Build

Where users can chronicle their builds. Start one thread and continue to add on to it.

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gamh44
Posts: 57
Joined: Tue Mar 24, 2015 4:03 pm
Location: Australia

Re: N&W S1a Project - Tender Build

Post by gamh44 » Fri Jan 31, 2020 5:47 am

Still plodding along.  Thought I had better update this thread.

Thanks to the advice above the wheels and axles turned out nicely.
59. WheelsFinished.JPG
Back to the bogie frames.  A small adjustment to the bending jig then onto mass production.  Here they are all done.  Each one taking about 10 minutes from start to finish.
60. FramesDone.jpg
If you have the bandwidth, this video demonstrates the process.
https://www.youtube.com/watch?v=c7xslAkeWYc&t=41s

Axle boxes were next.  Again, mass (or at least multiple) production seemed like the way to go.

Material was taken down to size and the mounting holes were drilled and the axle holes bored.  The 6” vice allowed for five boxes at once.  Perfect for one bogie plus one spare - just in case.
61. BoringAxleBoxes.JPG
Once both lots were drilled and bored, they were set up to rough out and finish the front faces.
62. RoughingAxleBoxes.JPG
To finish off, we need some angle blocks to cut the front faces.

gamh44
Posts: 57
Joined: Tue Mar 24, 2015 4:03 pm
Location: Australia

Re: N&W S1a Project - Tender Build

Post by gamh44 » Sat Feb 22, 2020 10:54 pm

Slow progress is better than no progress ...

Here is the latest

A couple of angled v-blocks were made to cut the face for the lift up oil door. Again, doing these in bulk saved a heap of setup time.
63. AxleBoxFaces_1.JPG
64. AxleBoxFaces_2.JPG
The sides of the boxes were done in bulk.  After separating all the boxes, this setup provided sufficient accuracy.
65. AxleBoxSides.JPG
In the absence of any detailed drawings or photos, the design and dimensions are being determined on the fly so there is a fair amount of mocking up to see if it all looks right. This is starting to look the part.
66. AxleBoxMockUp.JPG
Currently working on the bearings and the oil door itself.  There are also a few more parts to do for the frames before brazing them all together.

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