screws and glue without clamps, will it be ok ?

Discussion in 'Archived Threads 2001-2004' started by Jones_Rush, Jun 22, 2001.

  1. Jones_Rush

    Jones_Rush Stunt Coordinator

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    I am going to start building my first sub on sunday,
    The problem is that I have no clamps at all.
    My plan is as follows:
    1) tell the carpenter to cut all the necessary boards.
    2) I will also tell him to make all the holes for the
    screws.
    3) I will take the boards to my home, glue them together,
    and then use the screws to make it hold. (Well, It's a
    DIY sub, I must do something on my own...)
    Will this work ? can I get away without using clamps this way ?. How much time will the screws will have to be inside the MDF before ejecting them out ?.
    btw, the sub is going to be a sealed 3 c/f shiva.
     
  2. Shade Watson

    Shade Watson Stunt Coordinator

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    Jones,
    Thats the way I built mine, and I own clamps. I find useing screws faster and easier. Why do you want to take them out when you are done?
     
  3. Kevin Liedtke

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    Thats the method I used (screws and glue) on my Kit81s. The only time it split the MDF was the first screw I put in and didn't make a pilot hole. Everyone after that went in with out spliting the wood. I found the method to be pretty easy.
    ------------------
    -Kevin Liedtke
     
  4. Kyle Richardson

    Kyle Richardson Screenwriter

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  5. Jones_Rush

    Jones_Rush Stunt Coordinator

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    quote: Why do you want to take them out when you are done?
    [/quote]
    Well, I read somewhere that if you don't get the screws outside the MDF after the glue dries, after some time the screws can damage the MDF or the sub's covering somehow.
    I read that if you need to use screws with MDF, you should do it only with T-nuts, but T-nuts are not an option in this situation.
    Have you heard anything about this?, or have I just read wrong ?, It will be a lot easier to leave the screws inside the MDF rather than to take them out, fill the holes, and sand them.
     
  6. Dan_D

    Dan_D Stunt Coordinator

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    Ive been building car audio boxes for years and have always used 3/4" MDF w/ 1.5" particle board screws and liquid nails. always works great. im in the process of making a home sub enclosure now and am doing the same thing. Just be sure to predrill and countersink every hole. [​IMG]
     
  7. Jones_Rush

    Jones_Rush Stunt Coordinator

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    What is a liquid nail ?
     
  8. Patrick Sun

    Patrick Sun Moderator
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  9. Jones_Rush

    Jones_Rush Stunt Coordinator

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    Can anyone give me a rough approximation of how many screws will I have to use in order for the box to hold well.
     
  10. SteveMc

    SteveMc Stunt Coordinator

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  11. Kevin Liedtke

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    You really only need enough screws to make sure the sides are tight together. Im sure one box would be plenty for your construction.
    ------------------
    -Kevin Liedtke
     
  12. Dennis Kindig

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    Hands down, the biggest time-saver I have ever used for enclosure construction is an air-powered brad gun. It completely eliminated clamping, drilling pilot holes, time spent getting that perfect edge alignment, reduced hole-filling requirements, etc.
    If you want to get exact edge aligment without pulling your hair out, throw a biscuit-jointer into the mix. The glue really does most of the work in maintaining the integrity of the enclosure. If good resin-glue is used, the MDF should give before the joint does.
    Dennis
     
  13. Hank Frankenberg

    Hank Frankenberg Cinematographer

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    I'm going to be different here (strength of the forum) and tell you that I have built many speakers, from monitor (bookshelf) size to towers, and I do not use screws. If your saw cuts are accurate so the MDF surfaces mate well, good old carpenter's glue and clamps work great. Screws are an unnecessary time-consuming item. Lots of holes to drill while you hold the wood in alignment, then you have to countersink the holes. Afterwards, you have to go back and fill the holes, then sand the filler flush with the wood surface. The glue joint will be stronger than the MDF itself, so screws do not add joint strength. Years ago, I used lots of screws and finally had to think "outside the box" and experiment with no screws. Now I save time and money by not using screws. I recommend glue and clamps. As Dennis said, an alternative, if you want to invest in it, is an air-powered brad gun. I would still use my band clamps to hold the enclosure square.
     
  14. Patrick Sun

    Patrick Sun Moderator
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    Add me to the "Glue and Clamp" camp. I just finished my rear speakers (see the SunTwo's thread), and again, I used just Titebond II and clamp pressure to put them together.
    ------------------
    PatCave; HT Pix; Gear; DIY Mains; DIY CC; Sunosub I + II + III; DVDs; LDs
     
  15. Ken Cline

    Ken Cline Stunt Coordinator

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    Well, I like using screws and glue. To me clamps are cumbersome(especially when trying to align two corners), and I do own clamps. I've tried the clamp method, air nailer method and screw method. It doesn't take me that long to predrill the holes.
    I use 2 miter clamps at each corner and predrill the required holes. This makes perfect alignments - easily.
    Just my 2 cents
    ------------------
    Ken Cline - Home Theater Fanatic
    [email protected]
    Friends Don't Let Friends Watch Crap!
    www.dvdtracker.com/~kencline.asp
     
  16. Brian Bunge

    Brian Bunge Producer

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    I really like using glue and clamps along with a biscuit joiner! The biscuits really help with alignment, although a slightly warped piece of MDF can throw things off very slightly. But sanding can take care of that!
    I really would like to try those band clamps as well. Hank, don't you use those band clamps that MCLS (or is it MLCS) sells?
    Brian
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  17. BrianW

    BrianW Cinematographer

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  18. Hank Frankenberg

    Hank Frankenberg Cinematographer

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  19. BrianW

    BrianW Cinematographer

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    Thanks for clarifying, Hank. Sorry for mischaracterizing what you were trying to say.
    I'm always amazed at the expertise displayed on the HTF, regardless of the topic. But, heck, we could start a whole new forum with the woodworking talent we have here! What an awesome group we have!
    ---------------------------
    Don't ever take woodworking lessons from a guy named "Nubby."
     
  20. David A. Frattaroli

    David A. Frattaroli Stunt Coordinator

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    I also like Gorilla Glue. Great stuff for wood and MDF. I prefer it to yellow glue. I think they have it atwww.rockler.com.
     

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