How to route circular depressions

ColossusX

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Jan 18, 2018
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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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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.
 
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.

Seth
 
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
 
Colussus

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.
 
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