03-26-2024, 02:34 PM
I mentioned a couple of months ago that I was going to build this table:
It's 42" diameter and pulls apart for the addition of 3, 12" extension leaves. I have never built and extension table, so that made it sound interesting. The leg design and the fake dovetails in the top were appealing to me, too. The original tables mostly used walnut and oak. In discussing it with my customer, we decided on mahogany and maple. It's hard to imagine that this pile of wood and plywood cost over $1000 but it did.
The legs start out with a 2.5" square.
I laid out the mortises and cut them on my Horizontal Router Mortiser:
The lower leg is a round taper. I removed some of the waste using a simple tapering jig on my TS:
I have a lathe and I can turn a little, but I knew I'd never be able to make perfectly straight tapers on all four legs, so I thought about how to do it on my CNC. I built a crude 4th axis to rotate the leg while the CNC followed the taper pattern I programmed it to do.
I don't have enough Z height to machine from the top, which would have given a much better finish, but the tapers it cut cleaned up beautifully with sandpaper on a wood block.
There is an interesting transition from the round taper to the square top section; the outside corner is radiused to match the taper. I did this with a handplane and sandpaper.
I cut the veneer for the top with my Grizzly bandsaw, to which I added a tall fence and roller featherboard system. Those assure the wood is pressed tightly to the fence and keep my hands away from the blade. It makes sawing veneer a simple operation.
even down to the last cut:
Then to the drum sander:
and they are ready to use:
More to follow.
John
It's 42" diameter and pulls apart for the addition of 3, 12" extension leaves. I have never built and extension table, so that made it sound interesting. The leg design and the fake dovetails in the top were appealing to me, too. The original tables mostly used walnut and oak. In discussing it with my customer, we decided on mahogany and maple. It's hard to imagine that this pile of wood and plywood cost over $1000 but it did.
The legs start out with a 2.5" square.
I laid out the mortises and cut them on my Horizontal Router Mortiser:
The lower leg is a round taper. I removed some of the waste using a simple tapering jig on my TS:
I have a lathe and I can turn a little, but I knew I'd never be able to make perfectly straight tapers on all four legs, so I thought about how to do it on my CNC. I built a crude 4th axis to rotate the leg while the CNC followed the taper pattern I programmed it to do.
I don't have enough Z height to machine from the top, which would have given a much better finish, but the tapers it cut cleaned up beautifully with sandpaper on a wood block.
There is an interesting transition from the round taper to the square top section; the outside corner is radiused to match the taper. I did this with a handplane and sandpaper.
I cut the veneer for the top with my Grizzly bandsaw, to which I added a tall fence and roller featherboard system. Those assure the wood is pressed tightly to the fence and keep my hands away from the blade. It makes sawing veneer a simple operation.
even down to the last cut:
Then to the drum sander:
and they are ready to use:
More to follow.
John