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Thread: Router help?

  1. #1
    Join Date
    Sep 2012
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    Lake Macquarie
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    Default Router help?

    I need some advice

    I've just got myself a router, (ryobi), I've mounted it in a table that I've made myself and the first project I'm asking is a little display cabinet, I make and collect glass beads and i have a bunch i want to put on display

    So, it's just a simple set of little shelves made out of merante and I'm setting the shelves into a groove (forgive me if I'm getting the terminology wrong)

    I've got the set up all good and I've tested it out on some scrap mdf and it was perfect but as soon as I rout the merante i'm left with a crappy furry edge that I really have no hope of cleaning up without ruining the cut

    What am I doing wrong?

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  3. #2
    Join Date
    Nov 2004
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    Millmerran,QLD
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    Default

    Some possibilities are:

    You are trying to take too deep a cut at one pass which is slowing the bit down. Hence the ragged edge. What HP is your router?

    The bit is not sharp enough. How much work have you done with it?

    Meranti varies a lot. It refers to a group of trees rather than a specific tree. Some meranti is lightweight and tends to fluff. When chosing the timber try to select the more dense (heavier) boards.

    It is quite possible your problems stem from a combination of all the above and maybe something else too.

    Regards
    Paul
    Bushmiller;

    "Power tends to corrupt. Absolute power corrupts, absolutely!"

  4. #3
    Join Date
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    Bushy has probably hit the nail on the head here. You need to take tiny bites, increasing the height of the bit till you get the final dimensions.
    -Scott

  5. #4
    Join Date
    Sep 2012
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    I'm cutting about 5mm deep

    I think it's 1200hp

    I did try to pick all boards the same colour, as red as I could

    The bit is brand new

    I think you're right about the combination of reasons, could it also be the speed? I'm working on the slowest speed

  6. #5
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    back in Alberta for a while
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    Default

    It could also be the bit

    I'm guessing you're using a straight cutter -- depending on the brand, even a new bit can be blunt

    alternatively use
    a spiral down cut bit 192 Downcut Spiral Bits : CARBA-TEC which will cut down rather than across the surface
    or
    if your shelves a thick enough, a morticing bit 801 Mortising & Planer Bits : CARBA-TEC

    using the router's slowest speed is also a likely cause
    regards from Alberta, Canada

    ian

  7. #6
    Join Date
    Nov 2004
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    Millmerran,QLD
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    Default

    Quote Originally Posted by Imdeb View Post
    I'm cutting about 5mm deep

    I think it's 1200hp

    I did try to pick all boards the same colour, as red as I could

    The bit is brand new

    I think you're right about the combination of reasons, could it also be the speed? I'm working on the slowest speed
    I think you have just answered your question. The slower speed setting is for large diameter bits. Up to 20mm diameter (even 25mm diameter) you should use your fastest setting, which will be around 22,000 to 24,000rpm.

    Regards
    Paul
    Bushmiller;

    "Power tends to corrupt. Absolute power corrupts, absolutely!"

  8. #7
    Join Date
    Sep 2012
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    Default

    Thanks guys, more speed seems to have solved the problem

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