Demo prep

2 weeks until my Prescott demo.  This one snuck up on me a bit with everything going on surrounding the DWR so I'm scrambling to get everything lined up and get my handout done.

I've chosen to do a demo on shop made jigs.  More specifically turning related jigs that you can make with stuff you probably already have laying around in your shop.  I'm planning to do 4 or 5 different jigs, 2 of which are similar to the jig at the left.  I call this a Mark St. Leger style compression jig.  A recess is turned on the face of the jig and a cut is made on the side so that as the jaws of the chuck are closed the wood will flex and compress and grip the piece to be turned.  In this case the recess has a slight concave shape to grip the outside of the ring and prevent it from coming out of the jig unexpectedly.

Potato chips

More madrone tonight.  I think I have 3 more pieces left. 

Tonight I wanted to make a series of small bowls.  I glued the blank to a waste blog and then turned and cored a series of bowls.  The inside of each bowl was turned and then the piece was cored to turn the bottom of the first bowl and give a rough shape to the inside of the next bowl.

The bowls were then each placed on my vacuum chuck so the outside could be finished and the bowl turned to a uniform thickness.  I ended up getting 6 bowls from the blank. 

I ran one sample through entire process, including the microwave, before coring and turning the rest of the blank.  The piece in this photo separate from the other was the prototype.  I neglected to take a picture of the other 5 bowls nested together.

All 6 bowls sent through the microwave for 90 seconds each.  I'll probably give them all another 90 seconds tomorrow morning.

Here is all 6 stacked together.  You can see just how much they warped.  I'm a little disappointed they didn't retain a bit more of the original bowl shape.  They don't really appear to have been turned at all, I think taking thin slices off on a bandsaw would result in a similar effect, be much simpler, and would result in many more pieces, 20 or 30 if done carefully.

Madrone tube

Another chunk of Madrone burl tonight.  I think I have 4 left after tonight. 

Tonight I wanted to turn a thin wall tube.  I didn't get it as thin as the piece from yesterday (which I thought was a bit too thin).  I wasn't sure how this was going to work out as the blank was only secured with a bit of superglue on the waste block - see above.  The first half was hollowed with my bowl gouge, the second half I used my straight boring bar with a round scraper tip.

As I progressed deeper and deeper and then widened out the bottom end the glue surface area became smaller and smaller.  In the end there was only about 1/16" thickness left on the wall at about 2 1/2" diameter.  Very little left holding it in place but strong enough that I had to part it free.

2 trips to the microwave at 90 second each has the piece twisted and warped pretty nicely. 

The top end warped nicely.  The bottom end didn't move quite as much because it was just a little bit thicker.  Now I have an idea in my head for the next piece.  Now we'll see if I can get it done.  I plan to do a test run with some scrap wood to see if it's going to work like I hope.

Madrone Burl

As I promised Christian I got the first piece of the Madrone Burl he left me on the lathe today.  The color in the wood is amazing, fresh cut it was bright red with some brown patches.

I turned it as thin as I could, probably too thin in a couple of spots.  The wood cut very well, requiring almost no sanding.  I might have found a new favorite wood except it's pretty much impossible to get around here.

After turning was completed I popped it in the microwave for 60 seconds a couple of times to start to dry it and to force it to warp. 

We'll see how much more it moves over the next 24 hours. 

Desert Woodturing Roundup Day 3

 Today was the 3rd and final day of the 2011 Desert Woodturning Roundup.  There were 3 rotations (our term for a 90 minute demonstration).  2 before lunch and one after.  I spent the first hour of the morning, before the first rotation started, verifying that all the video equipment was setup and operating correctly.  I intended to attend Mike Mahoney's hollow form demo and did end up attending about 2/3rds of it but had to put out a few small fires here and there as they popped up.

I spent the rest of the day in Christian Burchard's room.  First at his 'Baskets and Gourds' demo and then at his 'Spheres and Spherical forms'.  I didn't know much about Christian prior to the DWR and now that I've seen him in action he's one of my favorite demonstators.  Unfortunately it seems he doesn't demonstrate very much, his last demonstration was the AAW convention held in Portland in 2007.  His work is almost exclusively Madrone Burl, it's turned green, turned thin, and the dried in the microwave to accelerate the drying process and to cause it to warp substantially.  Madrone is among the most unstable woods in the world and is known for extreme warping as it dries.  Christian emphasizes this in his work.

At the conclusion of his 'Baskets and Gourds' demonstration he had several inquiries about purchasing some of the finished pieces he had for use as examples.  I managed to purchase this piece from him for just $35.  A very fair price.  It's not very big, probably 2 1/2" diameter, just under the size of a baseball.  The texture of the piece is emphasized by sandblasting before the finish is applied, the pieces are never sanded.  This will be added to my small but growing collection.  My collection now includes pieces by J Paul Fennell, Christian Burchard, Al Stirt, Hans Finsterwalder, Molly Winton, Loren Fisher, and Brenda Behrens.

At the conclusion of the DWR he asked me if I'd ever turned green (wet) Madrone before and if I wanted some.  He'd shipped some extra pieces just in case something happened to one of his demo pieces.  His one condition is that it needs to be turned this week because one face on each block is not waxed and will start to dry and crack very quickly in this area.  Obviously I wasn't going to turn down such a generous offer.  He also included several glue blocks, the only way that he turns.  Now I have to figure out how to use the wood.  I don't want to copy his work (I may have to try 1 or 2) so I'm trying to think of something a little bit different, I'm leaning towards thin wall tubes, open at both ends.  Richard Raffan turns tubes and it's something that I've been wanting to try for a while, this may be the perfect opportunity.

Desert Woodturning Roundup Day 2

Yesterday was the official first day of the 2011 Desert Woodturning Roundup (DWR).  I'll post about it in a couple of days, after things settle down a bit.

Today was day 2 and the start of the demonstrations.  The one demonstration I knew I wanted to see today was Mike Mahoney's McNaughton coring demo.  I have and use the Mcnaughton set on a regular basis but I've always admired his work and knew I could pick up some pointers.    I ended up running the video camera which meant I was on stage with him and assisted him at various times.  The second half of his demo was coring this piece of Honey Locust Burl.  It was only about 10" diameter but he managed to get 7 pieces out of it.  Using my current tecnique I would have been lucky to get 3.  I learned quite a bit and got to interact on a personal basis with one of the turners I admire the most.  Pretty tough to beat that -

 Part way through the banquet we honored a couple of local turners.  What I didn't know is that everyone had gone behind my back and decided to honor me as well.  It was a complete surprise and very humbling.  I wish my wife could have been there but there was a camera taping everything so I should get a copy eventually. 

After the awards were handed out the live auction took place.  I ended up winning 2 items (I bid on a couple more that I didn't win and if I'm being perfectly honest I expected to be outbid on both of the items I won, but I'm happy that I won them).

This turned, carved, and painted square platter is by Al Stirt.  He's one of our demonstrators this year and donated this piece to the auction (as did several other demonstrators, Mahoney, Sfirri, Burchard, and Hatcher). 


Surface detail.  I might have to check out one of Al's demos to see how he does this technique.  I also won another chuck, I don't really need another one (unless it's a Nova Titan) but the price was too good to pass up, I didn't really intend to win it but that's the way things end up sometimes.

The backside of the auction piece I won.  I donated 2 items to the DWR, a framed lightning photo that went for $75 and the trio of burned hollow forms that were featured earlier this year.  That trio sold for $150, both were very fair prices.

Completed trio

I finished up my trio of plates last night.  I still have to sign them but all the hard work is done.

They're not quite as identical as I'd like but they're darn close. 

The three of them together are a bit under 1" tall when stacked, each one is just over 1/4" tall and right at 1/16" thick at the rim.