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  1. #14
    Join Date
    Jan 2001
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    20,697
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    Why dont you go to amazon.com and buy a cheap pen type laser pointer. Lay the pointer in the pulley or sheave and I would almost bet money that it will be as close to spot on as we need to be.

    Think of it...... straightedge....string...... pulley narrower than sheave......... lot of variables involved..... and Id say that most manufacturers of laser pointers have that laser diode in there to where it is pretty much shooting straight out of the pen body...... or at least straight enough for lining up two pulleys.

    Want one with a straight cylinder body though....... so it will sit square in the pulley valley.

    Someone try this......... I bet it will work fine.
    The bible is my constitution and the constitution is my bible.

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    Chewbacca Mom 2016

  2. #15
    Join Date
    Jun 2012
    Location
    Northeast
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    615
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    Quote Originally Posted by TTer. View Post
    I picked up a Bosch 6" torpedo level with laser($40-$50). I use magnet on opposite pulley with markings on it to account for the distance that the laser is off of first pulley. Then I check on backside of pulleys too. It works out awesomely. A ton quicker, more accurate and cheaper.
    Can you post a pic of the magnet? Just curious on how you made the markings?

  3. #16
    Join Date
    Aug 2013
    Posts
    8
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    Quote Originally Posted by DaveCR View Post
    Here's a small laser that will get you started.
    http://cycleplicity.com/products/244...FchDMgodXmYA8w
    This is one cool laser. I would think most pulleys would not lend to getting the short base of this laser square, however. I'm gonna try the torpedo level w/laser, anyone feel free to post links on those. I need to find the aforementioned Bosch.....

  4. #17
    Join Date
    Jun 2013
    Location
    Central Florida
    Posts
    811
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    $67
    http://sprocketcenter.com/index.php/...ool-cat-d.html

    $12.89
    http://www.amazon.com/Magnetic-Push-...+earth+magnets

    I attached a piece of magnetic business card sticky to the base of the laser so it would stay on the pulley and painted the rest of the colored pins white, so I'd have spares.
    JUST A LITTLE CLOSER AND THE LITTER BOX IS ALL MINE!

  5. #18
    Join Date
    Jun 2013
    Location
    Central Florida
    Posts
    811
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    Quote Originally Posted by tech45 View Post
    There is a need for a folding straight edge for sure. I was crammed in a smaller commercial ahu the other day and struggled.
    I made multiple straight edges of 18, 24, 30, 36 and 48 inches out of .090 aluminum, 1 1/4" wide; drilled holes at one end and put them on a 'keychain'. Cheap and always handy.
    JUST A LITTLE CLOSER AND THE LITTER BOX IS ALL MINE!

  6. #19
    Join Date
    Feb 2007
    Location
    Central NJ
    Posts
    667
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    Straight edge and your eyes are more than enough for most blower pulleys imo. Laser alignment tools seem more suited for coupled pumps i think. Alignment on those can be really critical in most cases I believe
    You have to pay your due's before you pay the rent!

  7. #20
    Join Date
    Aug 2019
    Posts
    6
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    Gates EZ-Align

  8. #21
    Join Date
    Dec 2007
    Posts
    9,103
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    Quote Originally Posted by IronArcher View Post
    Gates EZ-Align
    Posting in a 5 year old thread is frowned upon.
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

  9. #22
    Join Date
    Feb 2016
    Location
    Louisburg Kansas
    Posts
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    You don't need a laser, string or anything else to get perfect sheave alignment. Leave the driven sheave set screw loose and start the motor. The belt tension will bring the sheave into alignment instantly. Shut the motor off and tighten the set screw. You are done and it is right.
    No man can be both ignorant and free.
    Thomas Jefferson

  10. #23
    Join Date
    Jul 2018
    Location
    Wisconsin
    Posts
    974
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    That will only align parallel

    Sent from my SM-G960U using Tapatalk

  11. #24
    Join Date
    Apr 2018
    Location
    greater philadelphia area
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    Belt hog is fantastic. Pricey, but you get what you pay for.

  12. #25
    Join Date
    Feb 2016
    Location
    Louisburg Kansas
    Posts
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    I have to admit I never tried self alignment on sheaves that were perpendicular to each other.
    No man can be both ignorant and free.
    Thomas Jefferson

  13. #26
    Join Date
    Nov 2004
    Location
    up in the hizzy
    Posts
    3,333
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    Quote Originally Posted by WAYNE3298 View Post
    I have to admit I never tried self alignment on sheaves that were perpendicular to each other.
    Your method does not account for angular mis-aligment.
    There is not better place for the working men than the union! 100% UA the only HVAC union!

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