30
May 20

ex-Xmas Tree Xmas Tree Decorations

So a few years ago, some woodworkers on a podcast made an April Fool’s joke about how they always picked the same species of xmas tree so that they could mill it up for lumber after the holidays and make a chest of drawers out of them. Which was funny, until another woodworker went and actually did it (with small boxes not a chest of drawers, because there’s a lot of timber in a chest of drawers):

And this was important because until this point, the several xmas tree trunks in the back yard were just there because I had been too lazy to make a second trip to the recycling yard with them. See, after the holidays I take our now-long-dead-and-drying tree into the back garden and hack off all the branches with a hatchet and bag up the branches and the two kilograms of needles that have fallen off them on the ten-yard trip from living room to back garden. Those bags go to the recycling center because if you tried to just shove the tree into the car to bring the whole thing there, you’d be cleaning pine needles out of the car ten years later.

But now, there was a reason I was keeping those trunks 😀

And what better time than during a pandemic lockdown to do something with them? So, first up, take a glazier’s hacking knife and debark them and lop off the top foot or three until we get past the really bad shakes and checks on the surface (these things have just been drying outdoors untended for up to five years now).

Then I took the more manageable-in-my-shed lengths into the shed and cut out all the pieces that looked salvagable, trying to get at least one chunk from every trunk so we’d have every year represented. The bandsaw rendered the rest into firewood.

The oldest two trees just resulted in a handful of chunks but the most recent trees yielded a lot more material (that binbag is shavings btw, I had to empty the extractor that day)

Some of the smaller pieces turned out to be spalted when rough-turned, which is kindof pretty in a monochrome sort of way.

The shakes in this piece were just too large to ignore though, so out with the hot glue gun to make a dam and it’s resin time!

Daler-Romney pearlescent acrylic ink in sun-up blue, in case you’re interested.

It’s pretty nice stuff, and handles very well. I may need to get a few more of these. The resin pour proved messier than expected though…

And yes, the whole damn thing did in fact leak all over the live center, lathe bed and drive center and why yes, that was so much fun to clean up, how did you guess?

You couldn’t even really see the resin and its colour in the end. But it held the piece together while I chucked it up then put a jacobs chuck and 7mm drill bit into the tailstock and drilled out the center for an insert from a kit (bought mine from The Carpentry Store). I turned a small test shape to see how the wood handled, sanded it, sealed it, thought “no, that needs colour” and stained it then thought “wait, sanding sealer and stain should have gone on in the opposite order, oh bother”, and then promptly bent the ferrule learning how to get the head and ferrule into the tube running through the center.

Still. It’s only a test piece, I have three-and-a-bit trunks to play with still. And the stains don’t react too badly to pine (and it’s interesting to see how they react when you seal the surface first), and the buff-it gold compound I used as embelleshing wax works nicely (gold because, you know, xmas colours). So I learned a few things (like don’t try to pour resin into a crack in a piece while it’s still on the sodding lathe). Worth doing.

So there you go, an ex-xmas tree xmas tree decoration 😀


29
May 20

Cheating

I’m progressively increasing the size of the blanks I’m trying on the lathe, rather than jumping straight into a 12×3″ or 10×5″ blank which would be up near the top end of what I think you can safely do on my minilathe. This was a spalted beech blank about 8″ in diameter and 2½” thick. Small by most people’s standards I’d say, but give me time 😀

The blank did come sealed btw, using parrafin I think, but I had one miniature blank check badly on me so I kindof went on a paint-all-the-endgrain rampage 😀

If it’s worth doing, it’s worth overdoing…

Since this was another step up in size I kept the shape nice and simple and focussed on not getting a catch and flinging the bowl off the wall and into my face.

I did okay as well, up to this point. The bowl turned out to be too big by a few mm to go into the cole jaws, so I had to use a jam chuck for the first time and my choice of a tennis ball as a jam chuck was not without issues – I managed to get a catch and ruin the foot and it took ages of very shallow cutting to get back to something that was at least usable (but still not right, the damage was too much for that).

Still though. If you use spalted beech, you’re basically cheating off the bat because it never seems to turn out ugly 😀

I’m happy enough with that as a very small fruit bowl 🙂


24
May 20

Centerline finding aid prototype

So I had an idea and I’ve not seen this around for sale anywhere so I figured I’d build it.
When learning to turn, we keep getting told to set the height of the tool rest so that the cutter is along the centerline of the bowl.

I mean, after a few you can kinda get the hang of it and just set it by eye six times until you get it right and I’m told that after a few years you can drop that down to only setting it by eye two or three times to get it right 😀 But my lathe has morse taper 2 fittings in both the spindle and the tailstock, and you can get blank MT2 arbours for various other things (it’s not just lathes that use MT2 fittings) so I bought a blank MT2 arbour and some other bits and pieces and made this.

Small voltage source, some hardware for mounting something concentrically with the arbour and a laser diode with a cross collimator and…

And now you have a centerline to set your tool rest height to.

Now that’s just a protoype so it’s got some mechanical issues (that box isn’t as rigid as a metal one would be, and it’s enormously large compared to what it needs to be, but lookit, it’s a prototype not a finished thing and anyway I mostly made it because I wanted to see if it’d work anyway.

You do need to align the laser, and if your lathe has indexing like most newer minilathes, that’s easy, you just take off the chuck and turn on the laser…

Line up the vertical laser line so it hits that indexing marker above the spindle and that’s it aligned (assuming that your headstock and tailstock are aligned, but that kind of alignment is a routine lathe thing and you can get specific tooling for it and so on).

Activate laser, raise toolrest, put scraper on tool rest, cut bowl.
What do you think? Useful training wheels for learners?