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Biscuit joints

Discussion in 'Home Cinema Building DIY' started by IronGiant, Jun 25, 2003.

  1. IronGiant

    IronGiant
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    I'm sorry to announce the RELinquished project has ground to a halt for now, because I cannot fathom how my biscuit jointer works.
    I chose biscuits because they are 10 million times stronger than dovetails, dowels anything you care to mention (slight exaggeration), but I'm a bit stuck.

    It has a highly machined 4"by4" aluminium table built in under the blade that seems to do nothing. To use it in any sensible way, you open up a highly dodgy looking flap and use that. The instruction book is in a form of corrupted english that makes no sense and a search on woodworking.com brought up no less than 2711 hits, mostly about what can I do with it, rather than how does it work.

    Anyone know what the table bit is for?

    Dave
     
  2. MartinImber

    MartinImber
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    Ok here is a way of finding out.

    How to get the best from GOOGLE!

    Rather than searching a site try Google, use quotes around words like "biscuit Joint" prefix with a + to force it

    So try +"Biscuit Joint" and try other key words such as wood and any text on the biscuit machine!

    This MAY help

    If I am teaching you to suck eggs I apologise
     
  3. Gary Lightfoot

    Gary Lightfoot
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    Can you post a few pics of it? someone may be able to work it out from that.

    Gary.
     
  4. IronGiant

    IronGiant
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    I'll do some more searching and if I don't work it out I'll post some pics

    Dave
     
  5. Mylo

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    Any idea what make it is?
     
  6. Exeter Man

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  7. IronGiant

    IronGiant
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    Yep, that's what it is, only mine is made by Ferm and the instructions are very poor.
    I think I've worked out pretty well how to use it on edges, set that little table to half the
    width of the mdf, lay it on top, and away you go. What I can't work out is why the base is
    finely machined with three grooves in. And if you have any tips as to how to use it in the
    middle of a board (to mount the centre brace) that would be extremely helpful.

    Please treat me as a complete beginner and take me from the start and assume I know nothing :D

    Thanks,

    Dave
     
  8. Exeter Man

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    Regmarch,

    I've got the Ferm one too - much better quality than I expected for £45 :)

    If you've already figured out how to join boards at corners and on the flat, then you're pretty much sorted.

    The underside is machined to give a nice flat reference face, as there are some occasions when it is necessary to use this rather than the front fence.

    As for biscuit jointing internal braces, you will need to measure the distance between the centre of the blade and the machined underside. Using this information, you can draw a line (or provide a guide fence) offset from the centreline of the brace, and use this as a guide to position the machine (using that machined face). You will need to remove the front fence to do this.

    For a more graphic (and clearer) explanation, see New Yankee Workshop on Discovery Home & Leisure.

    Sorry not very clear, but hope this helps.

    Regards
     
  9. IronGiant

    IronGiant
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    Clear enough Exeter, thanks for your help. I'll give it a go.

    Dave
     
  10. sticker

    sticker
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    You can also build yourself a right angled brace to help you biscuit in the middle of a board and keep the jointer at 90.

    Basically its a right angle with a triangular brace behind it. 2 pieces of MDF around 12" square are normally fine. Biscuit these at 90 and then add the brace (you can add two) by gluing and screwing (countersink) the brace should be around 9" and a 90 degree triangle
     
  11. IronGiant

    IronGiant
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    I might well try that, thanks.

    Dave
     
  12. Exeter Man

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    Good idea regarding 90deg jig.

    Had a look at my biscuit jointer last night, and noticed that there are indicators on each side, level with the middle of the blade, which will help with connecting the brace.

    Regards
     
  13. IronGiant

    IronGiant
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    OK, if this sub isn't built by the end of the weekend start hassling me :)
     
  14. IronGiant

    IronGiant
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    I discovered today, just in time, if you pull the plastic piece off the adjustable table, it exposes another bit of machined metal, which when you swing it round is the 90 degree jig/brace :D

    See "RELinquished finished" thread for the results.

    I should have bought one of these years ago.

    Dave
     
  15. Exeter Man

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    Regmarch,

    I ummed and aahhed about getting mine, but first time I used it, I knew it was money well spent.

    If nothing else, it makes things much easier to assemble, as the biscuits ensure that all of the pieces are properly aligned :smashin:

    Regards
     

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