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Post by andyhigham on Apr 23, 2020 15:00:18 GMT
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Post by andyhigham on Apr 23, 2020 15:39:30 GMT
I have bought a chunk of reclaimed teak to make the dumb buffer blocks. An interesting story in itself. It is part of a shipment of teak from Rangoon to Liverpool aboard the SS Pegu. The Pegu was torpedoed and sunk by U57 on 8th July 1917 off the coast of Ireland. About 80 Tonnes of this shipment was salvaged from 80M of water in 2011
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Post by andyhigham on Apr 24, 2020 17:46:43 GMT
This is the coupling on my 3 1/2" Conway loco. There is a mushroom shaped detent that aligns with a notch in the pin. Rotating the pin locks it into place. I aim to replicate this idea on the Hunslet as it is simple, effective and pleasing to the eye 20200424_175621 by Sigma Projects, on Flickr 20200424_175601 by Sigma Projects, on Flickr
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Post by andyhigham on Apr 25, 2020 12:55:00 GMT
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Post by andyhigham on Apr 29, 2020 12:17:26 GMT
First buffer bandsawed to length and faced in the 4 jaw It actually machined very well using a negative rake general purpose insert tool 20200429_131135 by Sigma Projects, on Flickr
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rrmrd66
Part of the e-furniture
Posts: 339
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Post by rrmrd66 on Apr 29, 2020 14:54:09 GMT
Hi Andy
The full size ones have a large nose radius (in one plane only), I note at Lake Bala.
Any suggestions as to how you will form this?
A static vertical belt sander perhaps?
Cheers
Malcolm
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Post by andyhigham on Apr 29, 2020 15:13:00 GMT
I've looked at loads of photos online and have seen them without the radius, radiussed when viewed from above, from the side and both. I have also seen many lengths of block. I am going to use a bit of artistic licence and make them flat with stainless steel facing. I have ordered some M4 x 90 stainless allen head bolts which I will modify the heads into coach bolts
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Post by andyhigham on Apr 30, 2020 15:05:23 GMT
The bolts for the buffers arrived today. I modified the head of one, it looks the part. Just 15 more to do. 20200430_155706 by Sigma Projects, on Flickr
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Post by andyhigham on May 1, 2020 19:06:15 GMT
I did the other 15 today. You really don't want to know the method I used
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Post by ettingtonliam on May 1, 2020 19:57:21 GMT
Oh yes we do! (or at least I do)
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Post by andyhigham on May 1, 2020 20:01:39 GMT
Battery drill and belt sander
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dscott
Elder Statesman
Posts: 2,438
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Post by dscott on May 3, 2020 23:14:49 GMT
I now have 3 Battery drills and have been known to use them in anger round the track!!!
There is only one way to Deburr 1000 holes on both sides!!!!
There is only one way to tackle jobs round the house and loft insulation as well.
David and Lily.
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Post by andyhigham on May 9, 2020 21:06:30 GMT
I finished the buffers today, the stainless steel facing is mirror polished and stands out like a bull dogs bo**ocks.
I think I need to blast them and paint black. The teak looks good, feels good, smells good and was a pleasure to work with
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Post by andyhigham on May 10, 2020 17:34:41 GMT
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Post by steamcoal on May 10, 2020 23:18:47 GMT
Andy.
I have some Alice Hunslet photos I took at Bala Lake last June. Spent a few days there. I can send on e-mail tonight if you like. They are close ups of various parts. Have a nice buffer photo too.
Those painted frames may not be far from the truth either, as eluded too by Roger.
Hayden
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Post by ettingtonliam on May 11, 2020 10:23:35 GMT
Those buffers look good, but it was common practice to 'band' wooden dumb buffers to stop splitting. Don Townsley's book 'The Hunslet Engine Works' has a photo of 'Holy War' in its working days showing long wooden buffers with end plates, just like yours, with bands on both ends. Admittedly the outer end band of the right hand buffer is missing, but the left hand certainly has one.
I had to band the wooden chassis frame end on Locomotion's tender, and wooden chaldron wagon chassis frame ends were banded too.
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Post by steamcoal on May 11, 2020 10:46:21 GMT
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Post by andyhigham on May 11, 2020 17:16:01 GMT
That's another variable, your photo shows the block with the grain running across the loco. Other photos show with the grain parallel to the rails. KOTS-01 by Sigma Projects, on Flickr
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Post by andyhigham on May 11, 2020 19:04:05 GMT
I guess the style and size of the buffers depended on who was wielding the saw on the day they were fitted. They probably got changed numerous times, often up on the galleries between overhauls
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Post by andyhigham on Oct 28, 2020 9:57:09 GMT
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