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  1. #76
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    Mar 2005
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    Default I might have to give in and buy a lathe?

    Quote Originally Posted by crowie View Post
    Alan, Are you replying from recovery?
    Hoping all went well today.. Cheers, Peter
    As Sir Humphrey would have said, it was an ‘interesting’ day.
    When I got back from my Grand Tour last month, I almost immediately went to my GP who referred me to a Hand Trauma Clinic, they referred me to a specialist surgeon, his receptionist asked if it was urgent and/or was I in pain. I replied NO ....... of course?
    Well, apparently the surgeon disagrees with my assessment of the injury .
    The result of today is that he won’t operate ...... yet!
    I have been sent back to the trauma clinic for ongoing physio because the surgeon doubts that an operation would now improve my situation.
    He seems begrudgingly pleased with my level of recovery although he warns me that my hand might not return to pre-injury agility.
    So, I might soon need a swag of larger diameter handles and wine opening devices?

    fletty
    a rock is an obsolete tool ......... until you don’t have a hammer!

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  3. #77
    crowie's Avatar
    crowie is offline Life's Good, Enjoy each new day & try to encourage
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    Faulconbridge, Lower Blue Mountains
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    Default

    Sorry to hear the interesting news Alan...

    As I think I told you, the heart specialist is blaming my lungs and the lung specialist is blaming my heart for the ongoing breathlessness issues...NO MAGIC PILL YET!!

    BUT why are we considering a lathe for a finger injury??

  4. #78
    Join Date
    Apr 2013
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    Torquay
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    Default

    Sorry to hear of your injury Alan.

    I hope he can work on you to get back to your original agility.

    Take care and all the best Alan

    Will be in touch soon

    Regards

    Keith

  5. #79
    Join Date
    Aug 2010
    Location
    Horsham Victoria
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    Default

    Quote Originally Posted by Keith_1 View Post
    Hi All,

    I had a mate who used to love to sand and sand and sand. But I can tell you I hate sanding. After about 5 days of filing and sanding - I have got my second main drive wheel done. I went back and re-sanded my first one because I could still see file marks in it when I had it out in the sun.

    Now I have started the blanks for the trailing wheels. They too have 8 spokes each - more sanding

    Anyway hopefully they will look OK.

    Below are the 2 main drive wheels

    Regards

    Keith

    Attachment 423363
    Nice job !!!!

    DaveTTC
    The Turning Cowboy
    Turning Wood Into Art

  6. #80
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    Apr 2011
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    se Melbourne
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    Default

    Here is a link to a short video. https://www.youtube.com/watch?v=Xp4EEMciXQI
    The model is very rough, there is no color or tender and I am not sure if the cranks are at 90 degrees. I am sure Keith's model will be much, much better, even if it takes months longer to build.

  7. #81
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    Default

    Thanks Kevin,

    Looks like a mouse shooting across the floor.

    Fletty has kindly lent me the book - "Stephenson's Rocket - Owners Workshop Manual" - wow. Lots of isometric drawing of subframe and cylinder layouts etc.

    Along with Fletty's photos from the UK, I have a lot of work ahead of me - Loving it - still on my first trailing wheel. I reckon this will be by far my longest length of time build. Doubt whether it will be done by Christmas 2018.

    That's the beauty of this type of model making - day by day - week by week and month by month with lots of learning (and muck) ups along the way.

    Very slow progress but trying to get a better quality of finish on this loco.

    Thanks for everyone's help

    Regards

    Keith

  8. #82
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    Apr 2013
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    Default

    Hi All,

    Just about done all I can do on the first trailing wheel.

    As with other locomotive wheels I make up an inner and outer blank and turn the inner so it is a sliding fit into the outer. Then draw my spokes and glue the paper template onto the inner.

    Then cut the spokes using the bandsaw. You need to be very careful when you have very narrow spokes as in the trailing wheels as they can break quite easily.

    Glued the inner and outer together using PVA glue and let dry for a day. Put a photo of the main drive wheel and trailing wheel for size comparison.

    These wheels are good to file and sand as they are wider than the normal loco wheels and once glued into position - the spokes are pretty strong to be able to file and sand.

    As Fletty said - it is a lot easier to do the trailing wheel spokes as they are flat.

    Now back onto the wood lathe to machine the inner and outer blanks for the second wheel.

    Regards

    Keith


    14.jpg 15.jpg 16.jpg


    17.jpg 18.jpg

  9. #83
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    Apr 2011
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    se Melbourne
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    Default

    When you get around to it the wheels look good. Just as well you have a lathe.
    Like your other models I can see this one is also going to be a decent size. A lot of other model would have the larger wheel the size of your hand.

    Are we also going to have a Stephenson' in a top hat on the footplate of this model?

  10. #84
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    Apr 2013
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    Thanks Kevin,

    Like the pun

    Overall I think the model will be about 1100mm long. It will be pretty tall if I go for the larger original smoke stack (about 750mm high)

    Hadn't thought about Mr Stephenson as yet. Maybe at the end of the build ?

    Regards

    Keith

  11. #85
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    Default

    Here is another video, this time of a live steam model. https://www.youtube.com/watch?v=Hkku1wyxJA0 Sorry I am unable to translate. It gets better after the first 20 seconds. Also note the clocks.
    At the end of the video the chimney and smoke box are removed to show some of Stepenson's inovations. Multitubular boiler and blast pipe to consume the exhaust steam (to help the fire).
    What I have come to realize is while the engine is reversible, there is no variable cut off - one of the things that "Stephensons vavle gear" could do. This has the effect of saving steam (coal and water), or if you like a car analagie, Rocket has only one gear. The only way to adjust the speed (on level track) is to adjust the throttle.

    And here is the same engine in steam. https://www.youtube.com/watch?v=EtFKvfWOIaM Enjoy.

  12. #86
    Join Date
    Dec 2015
    Location
    Alabama usa
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    951

    Default

    I really didn't realize the size till the last picture and big is much better for details but adds a lot to the sanding job me thinks. LOL

  13. #87
    Join Date
    Nov 2008
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    Canterbury UK
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    Default

    The wheels are coming along great Keith all I seem to do lately is catch up with what all you guys are making.

  14. #88
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    Apr 2013
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    Finally I have got the locomotive wheels into a state that I can now start looking at making the chasis. Needed to do the wheels first so I could establish the correct heights on the chasis with the bearings and leaf springs.

    I am thinking of making the chasis out of aluminium flat bar and angle so I can get the correct size proportions.

    The photo below shows the drive and trailing wheels at the correct scale centre distance for my model. (thanks Fletty for the photos to work off) - the centre distance is 350mm.

    The (empty) beer can gives some idea of the size of the loco.

    Regards

    Keith

    19.jpg

  15. #89
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    Default

    Wheels look great Keith I hope you use a fresh can for scale every time you take a picture

  16. #90
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    Default

    Quote Originally Posted by Dalboy View Post
    Wheels look great Keith I hope you use a fresh can for scale every time you take a picture
    Thanks Derek

    Hadn't thought of that - TOP idea

    Regards

    Keith

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