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Posted on Cutting circles on router table

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426 posts in 5364 days

#1 posted 12-13-2007 05:29 PM

Hi Bob

You are correct that 1/4” shank – 2” long is tough on the router and even dangerous because it can break at high loads and I would not suggest a beginner to use them but…

All the “kuntz” (German – trick) is in the way that I use it…because the router lift is outside of the table area, as you can see, I’m lifting the bit by something like 1/16” increment at every round of the workpiece and it’s very easy on the router and the bit (I can hear when it’s tough on them) and, I don’t have to stop to re-adjust the bit height.

I know that not many people are “excited” from this router lift (only a few people on other forums asked me for more detailed information) but this primitive, $1 router lift is a “gold” for me and serves me much better than a $200~$300 lift would do…even for mortising with 3/4” dia (20 mm) bit, it cuts very easy because of the small increments.

My router table is 1ΒΌ” thick and is covered with 5/16” “floor panels”
The router is connected directly to the floor panels and because I removed the router base, I lost only 5/32” (4 mm) from the maximum bit height (or depth)

I have a few long bits (already 10 years) and they are reserved for jointing, doweling and sometimes mortising.
Even when I’m jointing, I don’t “bite” more than 0.5 mm (0.02”) in one pass not to stress the long bit.

By the way, before, I was cutting occasional circles of 24” dia on the table saw (pic below)


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