(Topic ID: 209160)

Plunge Router splintering plywood

By SealClubber

3 years ago

Topic Stats

  • 5 posts
  • 4 Pinsiders participating
  • Latest reply 3 years ago by SealClubber
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    #1 3 years ago

    I was cutting a new lamp display panel using a plunge router. The display holes are fine. For the lamp holes, I used a 1/2" straight bit with my plunge router. No matter how lightly I pressed, it did not cleanly cut the final ply and pushed through and splintered the back side so I have a lot of holes with large gashes around them. Not a great big deal for this panel as it is the back side, behind a backglass so nobody will see it unless during maintenance. However, I would like to prevent this for any future builds. For you woodworker experts here, what is the best way to do this right and make a nice clean hole all the way through?

    #2 3 years ago

    Clamp a second piece of wood under the area you are drilling. When you drill through the first piece of wood and into the second, there should be no splintering then.

    #3 3 years ago

    Did you pre-drill the panel or rely on the router to do that? I always pre-drill to minimize tearout.

    Like FF mentioned, clamp a scrap board to the underside prior to drilling.

    #4 3 years ago

    ^^ Take Force Flow's advice. Drilling will nearly always result in backside splintering on any wood regardless of tool or bit unless there is a sacrificial backing material in place.

    #5 3 years ago

    Will do. Thank you.
    Did not pre-drill.

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