Windscreen chop

Discussion in 'Old's Cool' started by Robert, Jun 1, 2004.

  1. Robert

    Robert KickAss Adventurer

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    I've seen that most guys use a hacksaw to cut their windscreens...is this the general consensus??? What about a coping saw??? I wanna cutdown the tallscreen on my Gran Canyon.
    I suppose a bandsaw would work nicely, but I don't have a fancy workshop...it will have to be by hand.
    Any advice appreciated......
    #1
  2. Rad

    Rad Just me

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    I used a zig saw with a blade for plastics. I taped both sides of the screen then cut it.

    I used a palm sander to round and sand the edges, finishing with 600 wet/dry ...Very smooth.

    I have a Dremel now, so next time I will use it
    #2
  3. Robert

    Robert KickAss Adventurer

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    I do have a jigsaw....is it possible to cut on the curved surface???
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  4. AntWare

    AntWare Lost In Translation

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    trying mounting the jigsaw in a vice or something similar and run the plastic through the blade, it should be easier to control, get a better finish, and save handwork later on.

    Be careful not to restrict the motor.
    #4
  5. Stephen

    Stephen Long timer

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    Cutting plastic. Ah. Material and thickness matter, as does feed speed and cutting speed. Acrylic (plexiglass) is fairly hard, so a small-toothed (but not extra fine) saw is appropriate. Cutting speed should be lower than for metals so you don't melt material too far from the face of the cut. Feed speed is moderate; slow enough so the material on the edge can cool before the blade passes so the cut doesn't weld itself back together. Clearly, a lower cutting and feed speed will help keep the blade itself cool.

    Lexan is softer and IIRC higher melting-point, thus implying larger teeth and slower cutting and feed speeds, but has seemed to cut about the same as acrylic though not as brittle.

    Hacksaw works for straight cuts on either. Coping saw can be used carefully for curves. I've had horrible experiences with electric jig saws on plastics, but mine is old and loose. Real easy to make chips and cracks with it. X-acto saws yield a beautiful edge for straight cuts, but are exasperatingly slow.

    ABS is a real PITA to cut. Hot knife or spiral saw are the only things I've had success with.

    So now, that's more than you wanted to know, and some of it's probably wrong. :evil
    #5
  6. Farnsrocket

    Farnsrocket Manos arribas!!!

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    :rofl :rofl :rofl
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  7. Robert

    Robert KickAss Adventurer

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    Thanks all....
    I guess I'll just get a fresh hacksaw blade and give it a go.....I should only have to worry about getting the cut straight..
    #7
  8. Sgt.Floyd

    Sgt.Floyd delinquent

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    I got great results using a table saw. I have an 80 tooth finishing blade in it, and the cut was very clean and very striaght, cleaed it up with a sanding drum in the dremel tool. If you have access to a band saw, that'll work too.
    #8
  9. GENO

    GENO Adventurer

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    Hello GENO here,please excuse poor english and spelling. I ride a black GS 1100 with a standard screen,hoping to get advise on fitting taller screen. |s it worth it ,the cost ,etc etc. The weather here in Ireland is great for biking,looking to take GS down to County Cork. Thanks for reading and any replies . GENO
    #9
  10. Sgt.Floyd

    Sgt.Floyd delinquent

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    GENO there is a ton if this info in the "Gspot" forum. including a whole FAQ here
    #10