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Thread: Suppose You Had a Laser Mast

  1. #1
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    Default Suppose You Had a Laser Mast

    that had been left together for years by the previous owner, and you wanted to separate the two parts, what would you do?
    Asking for a friend, really.

  2. #2
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    Default Re: Suppose You Had a Laser Mast

    Don't The two pieces slipped together? I would put some oil at the junction tap lightly with a piece of wood. Then I would anchor one end with a rolling hitch and put the other on a come along and start putting pressure on them
    Elect a clown expect a circus

  3. #3
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    Default

    That's a tough one. Two pieces of aluminum like to oxidize themselves together if given half a chance.

    I'd probably try vibrating it to try and convince it let loose. R/O sander with no paper maybe?
    You would not enjoy Nietzsche, sir. He is fundamentally unsound. P.G. Wodehouse (Carry On, Jeeves)

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    Default Re: Suppose You Had a Laser Mast

    I'd pour half a gallon of boiling water over the outer section and see if the sections would separate.If not,repeat a few times at daily intervals.The use of force as in post #2 would definitely help.

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    Default Re: Suppose You Had a Laser Mast

    Two strap wrenches set in opposite directions - some cloth wrapped around upper and lower sections - boiling water over the lower, cold water on the upper and try twisting with the strap wrenches ,

    Penetrating oil might help.

    There's a similar technique using hot coffee and ice-cream - used to free stuck trumpet mouthpieces.
    I'd much rather lay in my bunk all freakin day lookin at Youtube videos .

  6. #6
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    Default Re: Suppose You Had a Laser Mast

    Hot coffee and ice-cream?

    Sorry, man - ya can't say that, and then 'move on'...
    There's a lot of things they didn't tell me when I signed on with this outfit....

  7. #7
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    Default Re: Suppose You Had a Laser Mast

    Corroded aluminum? Probably a hacksaw

  8. #8
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    Default Re: Suppose You Had a Laser Mast

    well, I would weld a hook on either end. Then I would chain one end to an F250 and the other to a Chevy 2500. Have the drivers head in opposite directions and see what happens.

    You asked and this is the bilge.
    Jack
    Nicotine free since 1 October 2009

  9. #9
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    Default Re: Suppose You Had a Laser Mast

    Some interesting ideas. True, I didn't stipulate that the patient should survive the operation. Vibration does seem to loosen everything one wants to stay put, so it might work. Possibly a combination of several methods. Thanks to the ever helpful Bilge

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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by JTA View Post
    well, I would weld a hook on either end. Then I would chain one end to an F250 and the other to a Chevy 2500. Have the drivers head in opposite directions and see what happens.

    You asked and this is the bilge.
    We have a winner!
    "If it ain't broke, you're not trying." - Red Green

  11. #11
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    Default Re: Suppose You Had a Laser Mast

    I would try other things first, because the following is completely unproven and not tried. But...

    Would aluminum wheel cleaner be of any help? Wear safety goggles, gloves, no watch, no phone in your pocket, as it contains hydrofluoric acid which will fog/etch glass.

    What about sodium hydroxide (lye-based oven cleaner)? It's notorious for ruining anodized aluminum, takes the anodizing right off.

    Just brainstorming, be careful and perhaps consult others and try everything else first. Oh and boiling water should be fine but don't heat higher than that, high strength aluminum alloys can lose their temper and strength at surprising low temperatures, well below the melting point.
    When you can take the pebble from my hand, it will be time for you to leave.

  12. #12
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    Default Re: Suppose You Had a Laser Mast

    PB-blaster and some gentle tapping with a wooden stick, twice a day for three days.
    Only then would I attempt separation with heat gun and strap wrenches, which won't work the first time, so back to the PB and the stick for a couple of days, then try again.
    The true patriotism, the only rational patriotism, is loyalty to the Nation ALL the time, loyalty to the Government when it deserves it.

  13. #13
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    Default Re: Suppose You Had a Laser Mast

    To those who mention alloy issues, there are two sleeves on a Laser topmast. They are both nylon or some similar plastic, and the alloy sections never touch each other.

    The brute force solutions are (1) four or more Laser sailors twisting on each half; (2) tying a line to the gooseneck and something solid, and jerking away. Alternatively, if you tie a line to the vang take-off it will normally bend before anything else breaks so at least you can just pop rivet another one in.

    The lower sleeve's contact patch against the mast wall is only about 18mm high. If you drilled out the pop rivets on the upper sleeve, which has a contact area of about 40mm in height, so that it came loose from the top section you may be able to break the lower sleeve's hold on the bottom section, and then use it to belt out the top sleeve.

  14. #14
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    Default Re: Suppose You Had a Laser Mast

    We have this trouble with fishing outriggers that are not regularly -- once every six weeks or so--separated, cleaned and a little silicone spray applied.

    1.5 or 2-inch aluminum tube ( the pole) with a nylon sleeve on the end. Slides into an unsleeved chrome on bronze base.


    The way to get them apart? ( After all approaches above fail?) Unbolt the base and then use a piece of pipe as a drift to drive it out; have also seen one guy who adapted a bearing puller into pusher and used that.

    SOP is to sand the nylon piece to take it down a bit.

    Kevin
    There are two kinds of boaters: those who have run aground, and those who lie about it.

  15. #15
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    Default Re: Suppose You Had a Laser Mast

    I've used the lots of people idea that Chris 249 mentioned.

  16. #16
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    Default Re: Suppose You Had a Laser Mast

    Try to get white vinegar into the joint and let it work on the aluminium oxide

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    Default Re: Suppose You Had a Laser Mast

    Dang, just missed out on the vinegar thing ! If that doesn't work, how about CLR or something similar?

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    Default Re: Suppose You Had a Laser Mast

    I keep opening this thread looking for a mast mounted laser.

  19. #19
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    Default Re: Suppose You Had a Laser Mast

    I knew that was a possible misinterpretation. I'm surprised no one has suggested a solution involving a laser

  20. #20
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    Default Re: Suppose You Had a Laser Mast

    Only if mounted on a shark!

  21. #21
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    Default Re: Suppose You Had a Laser Mast

    I was thinking weld plugs in the ends, add a small bung, fill it with liquid and star pumping. Something will happen.
    The are similar and faster methods involving, um, fire...

  22. #22
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by bluedog225 View Post
    I keep opening this thread looking for a mast mounted laser.
    I keep seeing the thread and my brain keeps saying, "Suppose you had a rocket launcher..."
    When you can take the pebble from my hand, it will be time for you to leave.

  23. #23
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by Canoeyawl View Post
    I was thinking weld plugs in the ends, add a small bung, fill it with liquid and star pumping. Something will happen.
    The are similar and faster methods involving, um, fire...
    There is a nylon plug in the bottom, otherwise the mast would grind through the boat.

    If we're getting silly, you could drill a hole, put grape juice and sugar in there, seal the hole and wait for it to ferment.

  24. #24
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    Default Re: Suppose You Had a Laser Mast

    Small amount of butane an a flame...
    I'd much rather lay in my bunk all freakin day lookin at Youtube videos .

  25. #25
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by Canoeyawl View Post
    I was thinking weld plugs in the ends, add a small bung, fill it with liquid and star pumping. Something will happen.
    Never done it, but this is my favorite method of separating the crankshaft from the armature in an engine driven welder.

    Install a grease nipple, grab the grease gun, et voila!


    Quote Originally Posted by Canoeyawl View Post
    The are similar and faster methods involving, um, fire...
    On a more serious note, heating the joint with a heat gun, then cooling it with ice/water for several cycles may or may not help, but at least you'd feel like you were doing something!
    Rattling the teacups.

  26. #26
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    Default Re: Suppose You Had a Laser Mast

    Small amount of butane an a flame...
    We made cannons as a kid, by jamming a tennis ball into the top of a length of pipe. We had a drilled hole in the bottom of the pipe. We'd spray hairspray into the bottom hole, apply a match or lighter, and send the tennis ball downrange at impressive velocity.

    Kevin
    There are two kinds of boaters: those who have run aground, and those who lie about it.

  27. #27
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by Breakaway View Post
    We made cannons as a kid, by jamming a tennis ball into the top of a length of pipe. We had a drilled hole in the bottom of the pipe. We'd spray hairspray into the bottom hole, apply a match or lighter, and send the tennis ball downrange at impressive velocity.

    Kevin
    Potatoes too! Don't use anything less than schedule 40 if the potato is jammed in tight though...
    "If it ain't broke, you're not trying." - Red Green

  28. #28
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    Default Re: Suppose You Had a Laser Mast

    Potatoes too! Don't use anything less than schedule 40 if the potato is jammed in tight though...
    Those are not cannon. You are describing a Maine depthsounder. Shoot the tater, then listen: " Splash" means go; "Thud" means stop.





    Kevin
    There are two kinds of boaters: those who have run aground, and those who lie about it.

  29. #29
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by Garret View Post
    Potatoes too! Don't use anything less than schedule 40 if the potato is jammed in tight though...


    Rifled PVC pipe:

    • Available in 1 1/2" and 2" SCH 40 and 2" SCH 80 sizes only.
    • Six rifling lands equally spaced around the interior.
    • Design is unidirectional.
    • Pressure tested to 300 psi.
    • Range Proven.
    • Continuous lengths up to 60 inches (five feet) long.
    • Optional precision lathe cut potato knife w/ inside 'squeeze' chamfer on one end. (described below)
    • Available in 3, 4, or 5* foot lengths.
    • Nearly seamless unlimited lengths now possible with new indexed coupling system.
    • Ask how you can make a barrel 20 feet long if you really want!
    Rattling the teacups.

  30. #30
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    Default Re: Suppose You Had a Laser Mast

    What is a laser mast?
    Tom

    "Leave the gun, take the cannolis"

  31. #31
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by ccmanuals View Post
    What is a laser mast?
    They're very light...

    A mast for a laser sailboat.
    "If it ain't broke, you're not trying." - Red Green

  32. #32
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    Default Re: Suppose You Had a Laser Mast

    OT, despite being the OP, but old WD-40, before they started using carbon dioxide as the propellant, gives much more potent results I those potato guns

  33. #33
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by David W Pratt View Post
    OT, despite being the OP, but old WD-40, before they started using carbon dioxide as the propellant, gives much more potent results I those potato guns
    This is the bilge. Isn't a thread that goes from a laser mast to a potato gun completely understandable?
    "If it ain't broke, you're not trying." - Red Green

  34. #34
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by Garret View Post
    This is the bilge. Isn't a thread that goes from a laser mast to a potato gun completely understandable?
    more like completely predictable...

    Jeff C

  35. #35
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    Default Re: Suppose You Had a Laser Mast

    Quote Originally Posted by leikec View Post
    more like completely predictable...

    Jeff C
    True - but in a good way IMO.

    Of course Mr. Pratt may be going "Will you guys STFU?!?"
    "If it ain't broke, you're not trying." - Red Green

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