Happy accident

I had 2 more pieces of Madrone left, one that was burl and one that was mostly straight grain.  Tonight I decided to tackle both of them.

The first one was going to be an hourglass shaped vase but I had a small catch while hollowing and the piece broke in half both latitudinally and longitudinally.  I threw the top half in the microwave not knowing what would happen.  What happened was a pleasant surprise, the piece curled in on itself to form a spiral.  A light went off in my head.

My last piece was glued to a waste block, turned to a cylinder, and the inside was hollowed to a uniform thickness before the tube was parted off of the waste block.

I then used a pneumatic body saw (http://www.harborfreight.com/high-speed-metal-saw-91753.html) to cut straight down one side.  I was a bit surprised to see the cut open up so much immediately.  I was worried that it wouldn't act like the other piece, that it might unfold rather than curl tighter.

It turns out that my fears were unfounded. A couple of minutes in the microwave had the piece curled up like the sample piece.

Looks to be about 540 degrees, I think it would have curled more if it had been thinner.  I'm now thinking I might try to make some more of these with some other woods, not sure how much I have that's still green though.

Demo prep II

A few more sample jigs for my demo this weekend.

These jigs both thread onto the lathe.  The one on the left threads directly onto the spindle (1 1/4" X  8 TPI in my case)  I only threaded part way through this blank to make it "closed ended" as the drive portion in this case is the same diameter as the spindle.  The tailstock adapter was threaded and turned the other night.  The shoulder on the end was turned down to the same 1 1/4" diameter as the blank on the headstock.


These centers can be used to drive peppermill blanks, kaleidescope blanks, and similar objects.  The shoulders on each end are really to center the piece, the drive actually comes from the pressure between both ends.  The other advantage to using wood for the drive centers is that not only can they be custom fitted for a particular diameter but you can also turn right down and into the jig without damaging your tools.

Next up was another live center jig.  The blank was drilled, tapped and then the outside was turned as a reverse cone.











The inside was removed and the jig can now be used to drive spheres and help center and drive hollow forms.

Bisecting the burl

I'm not quite sure why but I decided it was time to cut up my burl today.  I tried for quite a while to find a sawmill to cut it up and minimize the waste but ended up deciding to bite the bullet and tackle it myself.

Step 1 was to wrap a rope around the burl and pull it out of the garage and into my driveway with my SUV.  Step 2 loop the rope around the top so the burl is tipped onto one of the already flat sides.  Step 3 fire up the chainsaw.








I had to cut from both sides to make the cut.  My chainsaw has a 20" bar and the burl is 36-38" wide leaving very little overlap in the middle.  The cuts didn't line up perfectly but it wasn't too bad.















I ended up cutting into 8 pieces, each roughly (very roughly) 18" cubed.  Each piece averages 95 pounds making the whole burl about 780 pounds.  Out of curiosity we weighed the sawdust and after subtracting the weight of the trashcan found that we had 33 pounds of shavings.

Here's a close up shot of some of the burl figure.  I'm very happy with the piece.  It's got very nice figure and color.  There are some bark inclusions but nothing that should be a deal breaker.

Ironwood blanks

A couple more Desert Ironwood handle blanks today.  I don't have an intended purpose for these yet, eventually I'll probably get a couple new tools and depending on the manufacturer they may need handles.

These are a little shorter than the one I turned yesterday due to a defect in the log, these are about 13" long, yesterday's was 15".  The stock handle that I broke on Thursday night was 12 1/2".  The additional length and the additional weight should provide better tool control.  The original handle was Ash and had a specific gravity of .66 Mesquite has a specific gravity of .80, Desert Ironwood is 1.15.  I suspect that with the additional length and the much denser wood the tool is about 50% heavier now.

Getting a handle on things

The handle on my spindle gouge had and "accident" last night and needed to be replaced.  I say "accident" but really I mean that I got mad at it, hit a log with it, and the handle broke right where the ferrule meets the handle.  I salvaged the ferrule to use on the new handle and set to work. 

I wasn't sure what I was going to make the handle out of.  I have a couple nice curly maple blanks but didn't really feel like using one of them.  Other blanks I considered were Walnut, Mesquite, Eucalyptus, Olive, Lignum Vitae, and Afzilia.  I finally settled on a nice piece of Desert Ironwood.  It's very hard and very heavy and should hold up to lots of use and abuse.  It's also one of the best looking woods around.  This piece has a small section of sapwood on the end, giving it even more character.

Birdhouse

A frustrating night to be sure.  I wanted to make a bidhouse for an upcoming event.  Artists in a show I'm in have been invited to decorate birdhouses that will be raffled off to help raise money for a local non-profit. 

I did another birdhouse for the same event 2 years ago and wanted to try something different.

The body is made out of Cedar, the roof is Walnut Burl.  I had to turn 3 bodies before I got one finished.  I wanted them to be quite thin in order to reduce the weight and I cut through the bottom on the first 2. 

The blanks for both the body and the roof are from pieces I've had for quite a while.  The Cedar came from eBay 5 or 6 years ago, The Walnut Burl came from a trade with another local turner about 4 years ago.

The roof was turned with steps to simulate shingles.  This was further enhanced by burning lines and by texturing the wood with a wire brush.  The ring on the top is copper wire.  Overall size is about 4" diameter and 5" tall.

Tailstock tap

I received a package on my front porch this afternoon.  I ordered a new 3/4"-10 tap from Enco late last week for my upcoming demo.  I now have all 3 of the most common sizes that I will need. 1" X 8 TPI, 1 1/4" X 8 TPI, and 3/4" X 10 TPI.  There are other thread sizes and pitches out there (3/4" X 16 TPI, 1 1/2" X 8 TPI, 33mm X 3.5) but these 3 should be all I need. 
 

This tap is used to tap small blanks to be used on my live center in the tailstock. The blanks are secured in my chuck, drilled, and then tapped with the thread that matches the thread on the nose of the live center.  The outside of the blank can then be turned to any shape needed. 





The trick for turning the outside is to lock the live center so that it doesn't turn.  A small screw inserted into the locking hole (which can be seen at the rear of the cylinder) and then secured with a couple of wraps of tape will prohibit the bearings from spinning, allowing you to shape the outside.  It's a right hand thread so it actually tightens as it spins. 

This one will be used to center the tailstock ends of peppermills.  Other shapes can be used to drive spheres, kalidescope blanks, and anything else that you don't want to mar the surface of.  It's also useful for preventing Turner's Elbow.