Saturday, 29 April 2017

Reusing Stuff and Improvements

I recently put up 2 new light fittings in the kitchen, one of the old ones was still in good condition so I mounted it onto a bit of old board with a length of rope so it can be hung over the workbench, or anywhere it's needed.

I decide to change the abrasive paper in my arrow tapering jig ready for completing some flight arrows for my mate JT. I was amazed how much dust had accumulated in it, as an improvement I've drilled a row of holes, it certainly helps the dust to drop out.
I also chamferred the leading edge a bit to avoid getting a shoulder on the shaft, you'll notice I also have a slip of paper over the leading edge too. Note in the pic I've opened out the jig to show the 1/2" diameter holes every 2", I'm considering drilling additional holes to make it every inch as it works so well, but dunno if I'll get round to it!)...
Health Warning:- The dust from Port Orford Cedar is rated as quite nasty in terms of irritating the lungs and being quite potent. I've had a niggly cough over the last month or so and tend to suffer with sinus problems, so I must be more careful when using the arrow taper jig.
http://www.wood-database.com/wood-articles/wood-allergies-and-toxicity/

I'm just tinkering around with stuff as I'm between bows and not sure what to pick up next.

Ruth came to pick up her bow on Thursday and we had a good session shooting a variety of bows and crossbows, it also inspired me to strip down the Chinese Repeater and do a video of it being shot and stripped down for my Youtube chanel here's the link for those who haven't seen it posted on Facebook.
https://www.youtube.com/watch?v=bffNrBa85Qs
Unfortunately it was drizzling a bit and I didn't get round to taking any pics. The bow seemed to be a nice manageable draw weight with some spare draw available for roving or flight. She tried some of my shorter bows using different anchor points (thumb behind jaw/cheek) and a more hunched over stance to keep the eye above the nock. That was better for the 10 yard shots and also gave a longer draw than the target style draw to the chin/kisser style. It will be interesting to see how she gets on with it.
Talking of different styles of shooting there has been a load of discussion about unsolicited advice and coaching on Facebook...  One chap had posted a nice clip of him shooting (which looked fine to me) and people were jumping on saying his elbow was too high or too low.
It was all bonkers as his right forearm was perfectly in line with the arrow which is doubtless what some coaches would advocate!
I made the point that there are too many people who think that Olympic recurve (or their own style) is the only style. I also said that criticism shouldn't be offered unless requested.
One bloke got particularly objectionable and obnoxious but was slapped down, all rather unpleasant.
My parting shot about coaching was two words...
Dick Fosbury !
The coaches all said he was wrong to try and clear the high jump bar going over on his back!


Thursday, 27 April 2017

Rubbish and Rubbish

Having a bit of a tidy of the garage and taking Yew off cuts and garden rubbish to the council tip. I looked at the Yew which I'd given up on the other day and wondered if I could maybe get some heartwood strips out of it, enough for the limbs of a bamboo backed Yew. A bit of time on the bandsaw and I've got a couple of pieces that might do.

I took the rest to the tip and whilst peering into the timber skip I saw a nice length of old fine grained pine that looked like it had been stripped out of an old house, maybe from boxing in some pipework. It was just over 1/2" thick and about 8" x 5' ,I thought it might do for flight arrows, so I took it out and put it in the car.
I've just run it through the bandsaw into square section strips, it seems quite promising as I tried to snap an offcut and it was damn tough.



Tuesday, 25 April 2017

All Finished

Well, nearly finished, the last coat of Danish oil needs to dry and it needs waxing, but that's just a wipe and a buff.
I'm really pleased with the patch, I've retained the slight swell where it was and it blends in nicely.
The leather grip looks smart and the heart/sap contrast is showing up a bit better, it's got a nice bit of character and the overall shape has settled down with that hint of reflex in the lower limb looking elegant.


Monday, 24 April 2017

Cloth of Gold Open Shoot

It was my first 3D shoot of the year (mostly 'cos I'm a wuss when the weather is cold or wet). The weather was glorious and the course was satisfyingly tricky. I was shooting with a great bunch from the  Aurora club (two ladies, two gents) there was a good mix of styles, One AFB shooting carbons, two take-down recurves, one sighted using carbons and one unsighted shooting woodies. One of the ladies was having her first comp' with a compound. I shot the longbow with my usual array of tired spliced old self nocked arrows.
It was great fun and each of us managed to out shoot the others on occasion, although I predictably scored worst. Mind, if there was prize for the fastest kill on a one arrow 4 yard target, I'd have won that :-)
I was really pleased with how the bow performed, I'd been getting obsessive about it and had noticed a couple of tiny marks on the belly the evening before, was it just grain, or a tiny crack/splinter? I decided to shoot it and see how it was at the end of the day. By the end the bow was less tired than I was and no sign of any trouble. Once home I cleaned it off with a wipe of white spirit and gave it a light sanding where I could see the odd tool mark. I then gave it another coat of Danish oil, I'll get the grip done today using some lovely leather from my mate Lawrance's old motorcycle jacket which he kindly gave me for the purpose. The jacket has some lovely supple good quality leather in the side panels.

As I was about to do the grip I was just cleaning up round the big feature knot on the back just above the grip when I spotted an imperfection, Is it a crack or just the grain? (See pic, just left of the red line) I sanded it and studied it, maybe it's just the end of a growth ring where it swells up to the knot. I couldn't feel it raised at all, but I was suspicious. Last year I did a Yew heartwood character bow with big knots in and it failed, the man who doesn't learn from his mistakes is a bit foolish. So... I put it on the tiller and took it to about 26" draw, pulling the rope with my left hand and feeling round the knot carefully... yes, I could feel it raised with my fingernail.
Now I'd left a big bulge for the knot, but extra wood doesn't guarantee extra strength. If I asked you to break a length of 4 x 1 over your knee you probably couldn't do it, but if the grain ran up and down or across it rather than along it you'd do it easily.
I rasped off the big bulge taking it down to level with the rest of the bow, and I could see the knot was effectively just a big patch of end grain taking up about 3/4 of the width of the back, with very little sapwood left proving the strength in tension.
I had a nice strip of sapwood which I'd sawn off another stave when roughing it out, so I've used that to do a patch. I rasped just down a little below the level of the back and shaped the sapwood to give a slight bulge reflecting the original shape. I've lost the feature knot, but the bow should be safe now.
More pics when eventually I get the wraps off and the grip done. The irony is that although this bow will go at a reduced price as it's been patched and isn't "perfect" there has actually been a lot more work in it than in a beautiful clean stave that turns itself into a bow if you say boo to it! But for me it's mostly about the wood and the learning,
Meantime while the glue is curing I though I'd try Twister, I took one arrow, 10 yards, twang thud... pro kill on my little cut out piggy. It's amazing what a day's shooting does for the form. :-)

Update:- I speeded up the cure of the glue by putting the bow on a warm radiator. This has enabled me to clean it up, blend it in and get a coat of Danish oil on it so I can do the grip tomorrow.
I'm pleased with the patch, and I've left a slight swelling to echo the original shape. I won't string the bow or flex it until tomorrow, to give the glue a full curing time.
Note the difference in colour between artificial light and daylight!



Friday, 21 April 2017

Bit of Tweaking.

I've had it back on the tiller again after 40 arrows through it and it's looking much better. (Note the subtle change compared with the pic' in the previous post).
Note:- it now has the proper string, is being drawn from the correct finger position and supported wher it will be held.
I've got the draw weight where I want it too.
Now it's just down to cleaning it up, doing the arrow plate and a leather grip.
It shoots hard and fast, feels very much like twister my regular field bow.
I'm off to Cloth of Gold's open shoot on Sunday, I may even shoot this bow to give it a good work out, mind I've put myself down as shooting primitive and I don't want to mess 'em about.
Video of it flexing on the tiller here:-
https://youtu.be/hpKyfZN41KM


Wednesday, 19 April 2017

In Danger of Overthink!

I've been fiddling and fettling this bow to a point where I've told myself to step away from the bow, make a string and get the bow shot in before I fiddle anymore!
The tiller was looking good but it was a tad underweight (42# at 28")... but then why am I aiming for 50# @ 30" ?
I've just pulled that figure out of thin air. Maybe the lady will get back to 28" or 29" will she really get back to 30" (prob' not). So 45# at 28" is prob a better figure.
Anyhow, I heat treated/recurved the outer limbs a tad and it's got the weight up a bit (almost 50# at 28" which give me room for some minor tweaking).
However the recurve on the lower limb is a bit harsher and makes it look a bit stiff tipped Even though you can see it is flexing, having almost pulled straight at full draw. There also looks to be a bit of a weak point/hinge... but if you look at the unbraced bow you will see it's natural bend... so should I mess with the tiller?
.. I found myself taking a scrape here and there until I gave myself a good slap and stopped.
I'll get that string made and shoot 50 arrows through it! Then I can fiddle, fettle and fine tune it.
Update:-
Got the string made and done a little bit of heating to ease out/stiffen up that deflex bend a whisker. What I've done may be very subtle, I didn't want to go mad and try and straighten it right out as it's on a knot. I just gave it some heat from the hot air gun for about 10 mins (with the back and sides covered with copious masking tape and clamped it to a straight edge with a slip of hard board under where I wanted the bend. So we're talking probably just maybe pulling down an inch, most of which will spring back, but the heat will also stiffen it.
Sometimes it's hard to know when to quit, but it's the fiddling around that can get you from a bow, to a good bow.
Oh, yes and by the way, I had a test shot before messing with the heat and it seemed pretty smooth and clean, not blisteringly fast, but then I prob only drew it 27" so it would be just over 40#

Saturday, 15 April 2017

Starting Another

I was lacking inspiration, I have a few primitive Yew bows to make, but the suitable staves aren't seasoned. A couple of people are after Bamboo backed Yew bows too, but I don't have suitable Yew heartwood.
Just as I'm wondering what to pick up, and I sweeping the garage after sawing Yew logs, I get a nudge from my mate JT who tipped me the wink that Ruth who goes to the ILAA shoots was hoping to get on my Yew longbow list. Well it just so happens that when I was sorting out staves for the last one I did , there was one that might do, it was a tad skinny for a 60# but it might do for this one (50# @ 30") This is a bit of a guess as Ruth normally uses a target style draw, but wants to get beyond 200 yards which is bit of a stretch for 40# at 27". so if we up the poundage and go for a more rustic/medieval draw maybe we'll get her there. The other thing is, it's easy to reduce the weight if it's too much but it's tricky to bring it up. I'd estimate 50# @ 30" equates to about 45# @27" which seems pretty reasonable.
I joked to JT that I'd make it 95# and simply write 40# on it ;-)

The skinny stave had a real rough area of damaged bark at the grip, and as I cleaned it up I could see it went deep with several areas of manky stuff into some of the rings beneath the bark. My guess is that a crossing branch had been rubbing against it periodically and caused damage wich had grown over and then the same had happened repeatedly. I rasped out down to sound wood so that I could patch it. Just in case this doesn't turn out well, I had another hunt through my staves and billets and found a pair of book matched billets that are pretty good, but not meaty enough for a warbow. So I've sawn the splices into those and got them ready to glue. that way I can get both lots of gluing done at once with less waste and mess.
Just need to be patient now and wait overnight for it to cure.

The bow has been back and forth on the tiller and is coming along nicely, here's some video:-
https://youtu.be/IIFYn6u3jvA
Since taking the video I've eased off the left (lower limb) and taken about an inch of each tip, these have been narrowed and worked down a tad.
The bow has a bit of set, but once it's nearly tillered I'll do a little light heat treating and straighten or recurve the tips a little.