4-axis rd. 2

I’m thinking of making a lamp – and with the 4-axis, now I have the opportunity to make a custom base for it.  I had a piece of 1/2″ thick walnut that would make a great testing ground.  Ideally after getting the part just the way I want it, I’d like to use a thicker piece, but for now this is a great test.

I made a simple curved profile, and swept it around to create a natural looking curved base.  A 1/2″ brass tube will sit in a notch in the center.

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Loaded up into SRP Player and added tabs.  I wasn’t too worried about these tabs as I could just sand them off afterwards.
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After ensuring my job wouldn’t be crazy long, I got my part dimensions.IMG_4341IMG_4339

Then cut a piece of 1/2″ walnut to size

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Found the center to sit in the 4-axis…
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Loaded up my bit.
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And started milling.  I used two bits, a 1/4″ square for roughing, and a 1/4″ rounded bit for finishing to get really smooth curves. IMG_4347 IMG_4352 IMG_4354

I took it to the band saw and took off the tabs.  Then sanded the tabs down.

It’s not perfect, I need to make the center hole a tiny bit wider to actually fit the 1/2″ pipe.  A 1/2″ peg does not fit into a 1/2″ hole.  I should’ve known that, but I overlooked it.   I also need to make the curve a little gentler so there’s more material surrounding the tube.  On this iteration there wasn’t enough material there, so the tiny lip left behind got a bit chewed up.IMG_4359

 

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