Author Topic: How to route circular depressions  (Read 695 times)

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Offline ColossusX

  • Posts: 225
How to route circular depressions
« on: August 05, 2019, 02:16 PM »
Ok. As some of you may know, I'm completely lost when it comes to using routers.  Is there an easy way to route circular depressions? Or do I need to make some kind of jig.  What I'm looking to make for some friends is in the image below.

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Offline Michael Kellough

  • Posts: 4547
How to route circular depressions
« Reply #1 on: August 05, 2019, 02:20 PM »
What does the 25mm sign refer to?

Offline Dick Mahany

  • Posts: 551
How to route circular depressions
« Reply #2 on: August 05, 2019, 02:23 PM »
One option is to make a simple template out of hardboard or MDF drilled with an appropriate forstner bit.  Then use double stick tape and rout with a top bearing guided pattern bit.  Making multiples if needed would then be easy.
« Last Edit: August 05, 2019, 03:32 PM by Dick Mahany »

Offline SRSemenza

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  • Finger Lakes Region, NY State , USA
Re: How to route circular depressions
« Reply #3 on: August 05, 2019, 03:21 PM »
Does it have to be done with a router? Can it be two layers?

   If those are 25mm diameter, get a 25mm forstner bit. Drill all the way through a piece that is the thickness of the depression depth (1/4" ?).   And then just layer it on top of another piece.


Offline ColossusX

  • Posts: 225
Re: How to route circular depressions
« Reply #4 on: August 05, 2019, 03:29 PM »
25mm depressions/openings.   I thought about doing it in layers and forgot about buts with bearings for an MDF template.  I can probably just use a forstner bit either way. The key will be to keep it as thin and light as possible, as these will be used for a table top war game.  Thanks for helping out a woodworking idiot

Offline Rob Z

  • Posts: 879
Re: How to route circular depressions
« Reply #5 on: August 06, 2019, 11:24 AM »

I think the plan detailed by Seth and Dick is a good one. Using a pattern bit is easier than you think  (if you haven't tried that before) as long as your template is properly attached.  Do you have a spindle sander? If so, you will likely want to run the holes around the spindle for a quick sand after drilling with the forstner bit.  Other than that, I think once you get the set up taken care of, you should be able to make a lot of these fairly quickly.