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Fiberglass 2" rod ?

Discussion in 'Home Brew' started by W9WD, May 22, 2009.

  1. W9WD

    W9WD Guest

    Anyone know where I can find a cheap piece of fiberglass 2" diameter rod about 2 feet ought to do it. Maybe 18"


     

  2. TheTeZ

    TheTeZ Member

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    thats short.... Whats it for?
     
  3. W9WD

    W9WD Guest

    Part of a 5/8 wave antenna to isolate the vertical element from the mast
     
  4. HomerBB

    HomerBB Sr. Member

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    I used the white schedule 40 PVC with a piece of vinyl closet rod stuffed in it. Our local Home Depot doesn't carry it anymore, so a piece of wooden rod could do it. The 1 1/4" PVC proved weak alone, so I split a section of 1 1/2" Sch 40 PVC for about 3/4 the length of the section and wrapped it around the smaller using PVC cement and a hose clamp around the bottom. The top was drilled through passing also through the vertical to secure the top of the section.

    reinforced 5/8

    another photo

    This has stood up to incredible winds
     
  5. Cajun Invader

    Cajun Invader Membership Moderator

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    Fiberglass shovel replacement handle from Home Depot. Won't be 2" but check them out and see if you can make them work for you.
     
  6. HomerBB

    HomerBB Sr. Member

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    It's about 1 1/4"

    Got a pair of them from a posthole digger. Hollow in the middle.
     
  7. W5LZ

    W5LZ Crotchety Old Bastard

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    Well, if nothing else works, wanna make one?
    - 'Doc
     
  8. Moleculo

    Moleculo Administrator
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    MAX-GAIN SYSTEMS, INC. : Fiberglass Price List

    I bought some from these guys a while back. They have every size, type and length. You don't need 2" in diameter for your project...I bought some 1" diameter solid stuff that is unbelievably strong

    BTW, these guys also have fiberglass push up masts.
     
  9. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    How much stuff did you get mole? Any 8 foot long stuff? Was shipping very high?I ask because I plan to make a purchase from them this fall/winter to build an HF quad and was wondering what shipping costs are like. I figure you on the west coast and me on the east coast should be comparable except for the fact I have a border to deal with.
     
  10. W9WD

    W9WD Guest

    I was just thinking of the ID size of the pipe.
    It's actually 1-1/2" but I thought I could turn down some 2" part of the length and let the rest stick out.

    Last night (while not sleeping) I figured I could shove a piece of 1-1/2" something down the inside of the mast and let about a foot stick out and then get some kind of plastic pipe that was 2" OD, slide the plastic over the whatever and clamp the vertical element to that.

    I think Marconi and the others that suggested I had induction problems between the mast and element hit the nail on the head. I think the increase of SWR with the increase in power suggests that too

    From an earlier experiment I have a piece of 1-1/2" wooden closet rod (4') that I can slide inside the mast and lag bolt. Now I just need to find some plastic pipe that is 1-1/2" ID and 2" OD (apprx) so I can use my original ($) u-bolt mount for the vertical. But I can always figure out some shims if nothing else

    Thanks for the link to the fiberglass rod place. Wish they sold less that 8' chunks. Probably a third of that would do me
     
  11. Beetle

    Beetle Sr. Member

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    If you live near the plant, you can probably get pieces that didn't make the grade quality-wise for free or very cheap.
     
  12. Moleculo

    Moleculo Administrator
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    The shipping was pretty cheap because asked them to cut it into two 4' pieces. If you want a full 8' piece, shipping is pricey...like $30-$40 or more.
     
  13. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    You can get any length you want in any size from Honest Bob in Ontario Canada at Maple Leaf Communications - Antenna Accessories Bob is a great guy to deal with. He even sent me what I needed to repair my tribander after a severe winter storm trashed it and told me to send him the money after I got the goods with enclosed invoice to avoid credit card charges. (y) Not bad considering it was my first purchase from him. Subsequent purchases have been equally as good to deal with. (y)
     
  14. Wire Weasel

    Wire Weasel Senior Moment

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    Use common Sch 40 PVC pipe like HomerBB suggested. Available any home improvement, hardware store.
     
  15. HomerBB

    HomerBB Sr. Member

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    The closet rod dowel I used at first broke when I put it up into the vertical element.

    See your other post on Bizarre SWR Shift for details.
     

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