Box Bottom

berniep

G'Day All

Can someone please advise how best to make the grooves in the sides of the box for the bottom. If I use a slot cutter bit I get round corners inside.
Go easy on me I'm new to using my router.

Any help appreciated.

Cheers
Bernie

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AxlMyk

It's called a stopped dado. I do them by setting up stop blocks against the fence, or by putting marks on it. You start the router and push the wood down onto the spinning bit to start it. When you gert to the end, turn the router off, and then lift the stock off when the bit stops.

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berniep

G'Day Mike

Thanks for that, will give it a go and let you know how I go.

Cheers
Bernie

jmg1017

Not sure I understand the question. If you use a slot cutter on each piece before assembly, and cut all the way through each piece, how are you ending up with round corners?
Any slot stopped before the end of the cut is going to result in a rounded corner because the cutting tool whether it's a dado or slot cutter is round. In that case you'll need to square it off with a chisel.

berniep

G'Day Joe

Thanks, see your point. Have tried stopped dado as Mike mentioned, and seems to work, so I won't push my luck.

Cheers
Bernie

blackemmons

That's what I use.

Box-Slotting Bits - Lee Valley Tools

It's easy to round the corners for the bottom.

bobj3

Hi Bernie

It's hard to do with a slot cutter.the size of the bit is just to big it diam.the norm.pull the slot cutter out and chuck up a strait bit and then you get the job done with a start and stop blocks.

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CharleyL

Lee Valley makes 2 small diameter bits for slotting boxes for the bottoms on a router table. These won't elminate the round corners, but will make them much smaller and easier to work with, and are ideal for making small boxes. I too like to clamp together the sides of boxes and slot them for the bottoms on the router table. I find it much easier and safer than making stopped dados on smaller pieces.

CharleyL

jmg1017

Ok, help me out here, are we talking about cutting the slot for the bottom after the box is assembled? Why? Are you talking about rabetting the bottom of the sides? to accept a flush bottom?

Hamlin

Hi,

Why are you using a slot cutter for cutting the groove for the bottoms? Doesn't matter if you're using a slot cutter or the one's from Lee Valley, it's still going to leave a rounded corner. To prevent this, you need to use either a straight or spiral bit and stopped dado's. Otherwise, you'll need to round the corners on the bottom piece.

I guess I must be missing something here.

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