Author Topic: 5" gauge buffers  (Read 2335 times)

Offline gingerneer

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5" gauge buffers
« on: December 14, 2011, 04:48:11 PM »
Hi Guys

After a long time away (decorating, marriage and more decorating), I have started to Tinker and make bits again.
I was given a set of frames for a 5" gauge 'Speedy' loco (LBSC design) last week. I decide to make up the buffers and buffer beams. While i have a set of drawings i am using the materials i have to hand.

First up are the buffer housings, 1" square bar was used (drawings state a size of 1 1/4"). I have included the rough doodle. I had a good idea of what i need to do in my head, for example the 1st op was to centre and turn down the bit which goes through the buffer beam and bolts the housing to the buffer beam. 12 dia by 12mm threaded M12 (fine thread would be nice but 1,75 pitch die was all i had to hand)

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BUFFERS by tapdieuk, on Flickr[/img]

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IMAG0101 by tapdieuk, on Flickr[/img]

Turn around and form the body, drill the hole for the buffer shank.


IMAG0104 by tapdieuk, on Flickr

Next on to the buffers, rather than hacking them out of a solid bar the shanks were turn up then hard soldered to some 3mm plate used for the head. The shanks have recess in them to hold a spring to allow the buffer to compress.

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Buffers by tapdieuk, on Flickr[/img]

Checking for a nice fit in the housing

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Buffers by tapdieuk, on Flickr[/img]

The housings, buffer shanks and heads

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Buffers by tapdieuk, on Flickr[/img]

Silver soldering the shanks to the heads. Ready for some heat. I did not have enough hands to take pictures while heating the job up.

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Buffers by tapdieuk, on Flickr[/img]

A nice fillet of solder.

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IMAG0112 by tapdieuk, on Flickr[/img]

Oh dear tried to move it too early.

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Buffers by tapdieuk, on Flickr[/img]

Griping on the shank, turning the head to size.

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Buffers by tapdieuk, on Flickr[/img]

Thats all for today hoping to finish them tomorrow.

Will

Offline gingerneer

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Re: 5" gauge buffers
« Reply #1 on: December 19, 2011, 04:30:58 AM »
Hi Guys

I managed to finish the buffers off at the week end. The last bits that needed making were some spindles or the buffer heads, theses are simple 4 mm rods threaded M4 on each end. I made one to check the over length and the length needed on the thread parts, before cutting the other 3 to length. The threading was made easier with the use of a tailstock dia holder

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IMAG0116 by tapdieuk, on Flickr

A trial fit of the spindle and the adding of a spring.

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IMAG0118 by tapdieuk, on Flickr

The assembled buffer, with locking nuts on the spindle compressing the spring.

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IMAG0119 by tapdieuk, on Flickr

I made up a buffer beam.

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IMAG0120 by tapdieuk, on Flickr

Both sets of buffer beams.


IMAG0121 by tapdieuk, on Flickr

Offline saw

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Re: 5" gauge buffers
« Reply #2 on: December 19, 2011, 04:59:18 AM »
Looking good, nice work  :thumbup: :thumbup:
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Offline andyf

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Re: 5" gauge buffers
« Reply #3 on: December 19, 2011, 12:02:47 PM »
Really neat, Will  :thumbup:.
Looking forward to seeing the bits that join the two buffer beams together.

Andy
Sale, Cheshire
I've cut the end off it twice, but it's still too short

Offline DaveH

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Re: 5" gauge buffers
« Reply #4 on: December 19, 2011, 02:40:29 PM »
Will,

very nicely made, nicely posted too.  :thumbup:  :clap:
 :beer:
DaveH
(Ex Leicester, Thurmaston, Ashby De La Zouch.)