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  1. #41

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    I just wanted to add that if anyone wants to get rack (track) and pinion then you can sometimes get them in hobby shops. They usually stock the plastic type that come in about 100mm lengths, but can be clipped together to make a longer track. there are a couple of places on ebay that sell them too, just search plastic rack and pinion.

  2. #42
    Toffle's Avatar
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    Technobots sells these for a very good price, but I don't know if they are up to the task.
    http://www.technobotsonline.com/gear...ion-gears.html
    Tom, on Point Pelee, Canada

    Ansel Adams had the Zone System... I'm working on the points system. First I points it here, and then I points it there...

    http://tom-overton-images.weebly.com


  3. #43

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    aye that's the ones.

    I guess it depends on how much strain you'd put on it, right?
    A modern lens and back shouldn't be too heavy for it I reckon.

  4. #44
    Toffle's Avatar
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    The price is low enough that I think it is worth risking if only to prove that it doesn't work.
    BTW, I made the first concrete steps today towards construction after spending many an hour sketching and CAD'ing. Comments and suggestions are welcome.

    Cheers,
    Tom
    Tom, on Point Pelee, Canada

    Ansel Adams had the Zone System... I'm working on the points system. First I points it here, and then I points it there...

    http://tom-overton-images.weebly.com


  5. #45

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    too true.

    looks good so far, but I'm wondering why you've decided to make the back so bulky, not that it makes my difference, just could be thinner, so overall lighter.

    anyway, you should for sure try, at least, making your own bellows once. You're camera will be 4x5, no?

    not so hard then

  6. #46
    Toffle's Avatar
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    Quote Originally Posted by himself View Post
    too true.

    looks good so far, but I'm wondering why you've decided to make the back so bulky, not that it makes my difference, just could be thinner, so overall lighter.

    anyway, you should for sure try, at least, making your own bellows once. You're camera will be 4x5, no?

    not so hard then
    Good call, Himself. The bulk is coming off slowly but surely with some 60-grit sandpaper. When imposing on the good will of a neighbour, you can't be too fussy about the results. My friend (with the $100,000 wood shop) preferred to allow for error by slightly over-sizing, so I am working away at the thickness. The wood is definitely sturdy enough to withstand a little thinner build.

    Anyway, I shouldn't be hijacking this thread. I will post more results in a separate thread when there is more to report.

    BTW, I am definitely going to give the bellows a shot. After all, I have YOUR amazing floral bellows as an example.

    Cheers,
    Tom
    Last edited by Toffle; 05-07-2013 at 03:12 PM. Click to view previous post history.
    Tom, on Point Pelee, Canada

    Ansel Adams had the Zone System... I'm working on the points system. First I points it here, and then I points it there...

    http://tom-overton-images.weebly.com


  7. #47
    Steve Smith's Avatar
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    Quote Originally Posted by Toffle View Post
    BTW, I am definitely going to give the bellows a shot.
    On the basis that you can never have too much information, here is my bellows method: http://stevesmithphoto.webs.com/bellows.html


    Steve.
    "People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.

  8. #48
    Toffle's Avatar
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    Steve, that page has been open on my computer for about three weeks.
    Us poor unwashed who don't have access to a laser cutter will have to try other things first.

    Cheers,
    Tom
    Tom, on Point Pelee, Canada

    Ansel Adams had the Zone System... I'm working on the points system. First I points it here, and then I points it there...

    http://tom-overton-images.weebly.com


  9. #49
    Steve Smith's Avatar
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    You don't need a laser to do it. Get the pattern printed out the right size, tape it to the stiffener material and cut through it all using a scalpel and a steel rule.


    Steve.
    "People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.

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