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Previously on "Google Rail: Going Nowhere Fast"

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  • VectraMan
    replied

    Leave a comment:


  • TimberWolf
    replied
    The yellow wheel is an immobiliser.

    Leave a comment:


  • stek
    replied
    Originally posted by d000hg View Post
    • The driving cog turns clockwise and turns the red cog anti-clockwise
    • The red cog drives the left and middle wheels clockwise
    • The wheels' cogs are double-thickness and the red/yellow cogs are in separate planes
    • So the red cog drives the middle wheel clockwise, which in turn drives the yellow cog anti-clockwise, which finally turns the right wheel clockwise
    • So all wheels turn clockwise on the rail, and in fact all 3 are geared equally


    Someone check this please, I think it's sound though I doubt it is what the designer intended.
    Maybe, but there's absolutely no sign of any valve-gear, unless there's some serious poppet-cam stuff going on between the frames - or any real connection between what seems to be the cylinders and the wheels.

    Looks like it's been designed by a Bob, as there is also nowhere for the driver to sit.

    Leave a comment:


  • d000hg
    replied
    Originally posted by VectraMan View Post
    Which wheels would need to touch to make it work? Unless the yellow wheel is entirely redundant and not connected to either of the lower wheels, it still won't work.
    • The driving cog turns clockwise and turns the red cog anti-clockwise
    • The red cog drives the left and middle wheels clockwise
    • The wheels' cogs are double-thickness and the red/yellow cogs are in separate planes
    • So the red cog drives the middle wheel clockwise, which in turn drives the yellow cog anti-clockwise, which finally turns the right wheel clockwise
    • So all wheels turn clockwise on the rail, and in fact all 3 are geared equally


    Someone check this please, I think it's sound though I doubt it is what the designer intended.

    Leave a comment:


  • doodab
    replied
    Originally posted by NickFitz View Post
    This is why software engineers aren't allowed to do proper engineering
    Or alternatively, that's why so much software doesn't work

    Leave a comment:


  • gingerjedi
    replied


    This one shouldn't work either.

    Leave a comment:


  • VectraMan
    replied
    Originally posted by d000hg View Post
    Are you sure wheels that look to touch aren't in separate planes?
    Which wheels would need to touch to make it work? Unless the yellow wheel is entirely redundant and not connected to either of the lower wheels, it still won't work.

    BTW I'm a software engineer and I spotted this straight away.

    Leave a comment:


  • d000hg
    replied
    Originally posted by NickFitz View Post
    Today's Google logo supposedly honours Richard Trevithick:



    Now, if the red cog goes anticlockwise, that means the yellow one must go clockwise. That means the left wheel will go clockwise, the right wheel will go anticlockwise, and the middle wheel will try to go in both directions at the same time

    This is why software engineers aren't allowed to do proper engineering
    Are you sure wheels that look to touch aren't in separate planes?

    Leave a comment:


  • xoggoth
    replied
    Which reminds me, still have a big box of Lego in the attic. Something to keep me busy when I reach my 2nd childhood.

    Leave a comment:


  • xoggoth
    replied
    And the big connecty thing would hit the gears. On the other plus side, if it could work, the piston rod at the front would be great for punching cows out of the way.

    Leave a comment:


  • Sysman
    replied
    Woosh! Back to childhood. I think it was a Ladybird book which featured what was possibly the first accident by a self-propelled vehicle



    Yes - that's a single wheel at the front.

    Trevithick's Puffing Devil also got a mention in that book, and also met with a sticky end:

    During further tests, Trevithick's locomotive broke down three days later, after passing over a gully in the road. The vehicle was left under some shelter with the fire still burning whilst the operators retired to a nearby public house for a meal of roast goose and drinks. Meanwhile the water boiled off, the engine overheated and the machine burned, destroying it. Trevithick did not consider this a serious setback, but rather operator error.
    Operator error obviously isn't something new.

    Leave a comment:


  • russell
    replied
    Originally posted by NickFitz View Post
    Today's Google logo supposedly honours Richard Trevithick:



    Now, if the red cog goes anticlockwise, that means the yellow one must go clockwise. That means the left wheel will go clockwise, the right wheel will go anticlockwise, and the middle wheel will try to go in both directions at the same time

    This is why software engineers aren't allowed to do proper engineering
    Good that it's only a digital image and not a real machine.

    Leave a comment:


  • AtW
    replied
    They've recently received a patent on this whole doogle thing idea.

    IANAL, but you may have just infringed it

    Leave a comment:


  • RasputinDude
    replied
    This is why artists aren't allowed to do proper engineering.

    Leave a comment:


  • NickFitz
    started a topic Google Rail: Going Nowhere Fast

    Google Rail: Going Nowhere Fast

    Today's Google logo supposedly honours Richard Trevithick:



    Now, if the red cog goes anticlockwise, that means the yellow one must go clockwise. That means the left wheel will go clockwise, the right wheel will go anticlockwise, and the middle wheel will try to go in both directions at the same time

    This is why software engineers aren't allowed to do proper engineering

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