New bow!

Remember this bow: go here

The latest flightbow I did some month ago. I called it “The Queen”.  Flightbows are always a great possibility for to test the limits of designs and woods, flightbows are somehow a kind of Formula 1, an exercise area for bowyers.

The queen- braced. The arrow is made of thin baked strips of fine grown larch, with the tip and the nock enforced with bird#s eye maple.

“The Queen” is such an overwhelming exercise for me, so I decided to give it a try as a longer version, thought to be drawn to 28″. It measures up my expectations at all points: great design and performance.

It ended up in one of the best bows, I´ve ever done, maybe the best bow I was ever able to do.

Originally the bow was thought to be made as a one piece, but cause some of cracks arising in the handle- area, I had to change the plan. I remembered a design inspired by Marc St. Louis:go here

So I cut the stave, shaped the limbs, steam bent and heat- treated the long tips, again using the Golden Ratio: length of the limbs is 15.4″, length of the tips is 9.4″ The tips are recurved at about 30°

 

Here we are

Length:55", 50lbs/ 26", osage- orange, handle of ash, walnut, dovetailed wedges of curled maple
Length:55″, 50lbs/ 26″, osage- orange, handle of ash, walnut, dovetailed wedges of curled maple

 

Comparing "The Queen" and its brother. Pyramid shape of the queen's limbs and the much more parallel limbs of its brother ending up in different tillering shapes, as shown in the following pic.
Comparing “The Queen” and its brother. Pyramid shape of the queen’s limbs and the much more parallel limbs of its brother ending up in different tillering shapes, as shown in the following pic.
"The Queen" bending much more in the outer limbs, while its brothers limbs bending much more circular.
“The Queen” bending much more in the outer limbs, while its brothers limbs bending much more circular.
"The Brother" drawn at 16". Cause of the length and the shape of the limbs the draw is very smooth.
“The Brother” drawn at 16″. Cause of the length and the shape of the limbs the draw is very smooth.

Details

The handle
The handle: ash, walnut, curled maple
Arrow-rest of bone
Arrow-rest of bone
Tip, backview, string made of dyed linen
Tip, backview, string made of dyed linen, nocks
Backview, I left a little bit of the sapwood for to give the back a flaming look: this bow is burning.
Backview, I left a little bit of the sapwood for to give the back a flaming look: this bow is burning.

 

Sorry, I didn’ t have the time to do the chronos seriously, cause the bow was sold as soon as tillering was finished.

A guy who dropped into my workshop, saw the bow drawn in the tiller- board and wanted to buy it at once.

Chronos with a 290grs. arrow, 5/16″ and 26″ in length  tell a 187f/s speed.

I’ m such crazy about this bow, I should resist every other design.

I’ ll do the same bow very soon and post a making of.

 

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Hysteresis? Hysteresis! in wooden bows.

I´ve had a very busy time the last months, now it´s time for to relax and to study this highly interesting topic: Hysteresis in wooden bows.
A great work of Dick Baugh of “Primitiveways”. I always thought hysteresis to be the final key in making great performing wooden bows.
So go for: Internal friction in bow limbs and: Bow and arrow efficiency.

I´ll do these tests and discuss the results soon.

Bowmaking tools

I’ ve never posted my favourite tools for bowmaking. But the truth is that I’ m using them daily and they deserve to be  honoured. Especially right now, since some weeks I’ m very proud of having purchased a SIGMA DP2– camera. This camera is a dream for people, who like to care for details and to take pics by their own, not automatically. SIGMA- cameras are working with a FOVEON– sensor, all other cameras are using a BAYER- sensor, the FOVEON  is another capablity making SIGMA- cameras so different. SIGMA- cameras are made for selfbowyers! So my SIGMA DP2 has become another daily tool for my work.

Hatchet, adze, drawknife and a knife with a 300years old blade and a handle made of a bladebone of a moose
Hatchet, adze, drawknife and a knife with a 300years old blade and a handle made of a bladebone of a moose

The hatchet and the adze are presents of 2 guys from Turkey, who did some of my bow- classes. It is a good old custom in Turkey to make a gift to a teacher or a master, these tools are meaning a lot to me, they are made in local blacksmith shops in Turkey and I’ m using them a lot.

This drawknife is  working the best for, during the last 20 years I’ ve really been using a lot of different types of drawknife, but this one is my favourite. It’s not to long, the globular handles are charming my hands very properly.  The blade is made of real thick steel.  It is made by the French ARNAUD BROTHERS COMPANY.

bxplo tools 2 5 2013
The ARNAUD knife at work: tillering an osage bow

The knife with the moose-handle is a beauty and a great tool, which I’ m using daily. The blade is about 300 years old, maybe it has been used for killing, its sheer age leaves space for fantasy. It is made by a former friend of mine, a pastry chief, who was famous for his scrimshaw works too. He made  the knife, I made him a plains- bow of osage, hey, that is  the real deal. No money!

Favourite tools are almost like an extension of my hands and fingers, I don’t feel comfort or a bit helpless when I’ ve to use other  knifes or hatchets. I can’ t work without them, it’s like being married.

I prefer blades not to sharp for bow- making, otherwise the blades will “bite” to deep into the wood. Usually my moose- knife is very sharp for working hard and knotty areas in a stave, it is my tool of choice when fine- tillering a bow.

Another pic of the adze, the hatchet, drawknife andthe moose- knife
Another pic of the adze, the hatchet, drawknife and the moose- knife

Next post is dealing with my progress on the “zero- brace- height- bow, this design is so delicious, everybody is foretelling  its explosion.

The explosive "zero- brace- height- bow
The explosive “zero- brace- height- bow

First post since months – no excuse – just more bows and arrows!

 

Hope you enjoy the bows and arrows posted above, details will be posted soon.

I did a lot of bow- classes the last months, our new family members, the mountain- sheeps needed a lot of time: they turned out to be world class escapees, so we’ ve to try out different types of fences. Finally I ended up in making lots of the good old sheep hurdles, I don’ t like to see sheep dying in an electric fence.

This winter is really hard, not to cold but snow since five months, I almost forgot how the world is looking without snow. Where is the spring of 2013? Outside it’s still very cold and there’ s still this snow!

Speed, Speed, Speed………………….is the place!

Recently I came across the following discussion http://paleoplanet69529.yuku.com/topic/11885/Questions-about-really-fast-wooden-bows?page=1#.T69m8JOljb4 in the PaleoPlanet forum. Asking if anybody has made a so- called catamaran– bow  in the same forum I got some comments focused on very fast wooden bows: http://paleoplanet69529.yuku.com/topic/50882/very-fast-wooden-bows#.T9YPeZOljb4 in general, but no comment about that bow. I guess nobody has made it to date.

Anyway I decided to give this design a try by modifying 2 bows I´ve yet done as flightbows. Maybe you remember my article “Making of a wooden flightbow- 2.5×2 double dragons” and this pic:

 

I chose the osage bow(2nd from above) and the euonymus bow( at the bottom). 

The osage bow was 44lbs at 23″.

First I made a jig for to steambend the long non- bending tips of the bow into an about 30° angle. The bending worked well, osage is really one of the best woods for to be steambent. I left the bent tips in the jig for some hours, then I heat- treated them for to dry and to fix the angles.

Originally I wanted to split the tips with my small bandsaw as Tim Baker has posted it in his comment about the so- called catamaran bow. But when I braced the bow for to check its new tiller, I was heavily surprised by its power and springiness.

I´ve made my experiences with split- limb bows when being the bowyer of a research- project focused on the reconstruction of Boeotian and Egyptian bows. Cause there had been some problems with stability I decided not to split the tips. But for security reasons I added some string- bridges, they are thought to be removed when I´ve  done the first shots with the bow.

Bow unbraced, sideview
Bow braced
Backview, some leftovers of the pics I had originally glued to the back
Bow drawn to 20″

The length of the bow is 45″, the handle is 51/2″ in length, the tips are 91/8″ in length. The limbs are 13/8″ at the handle and about 1/2″ at the nocks. The draw- weight has increased to 51lbs at 23″.  I´ve left the tips in their grown shape. That´s it.

The chronos were done with a 155grs. hex-shaft made of cedar.

First shot, drawn to about 21″

The following 8 shots were 240- 255f/s, one last shot for today.

I´ve never expected such a killer- speed!!!!!!!

I couldn´t help to do another shot, but ended up with 262f/s.

To chrono a bow is a somehow a tricky thing, it depends a lot on the release of the arrow, I don´t find myself to be very experienced in speed- or flightshooting, I´ve still to practise it much more.

I´ve  to thinkover this design and this high speed,actually still enjoying it.

Some adds: I was really hesitating to post the high speed of the bow, cause I´m not quite sure what´s the reason for. I´m still thinking over it and above all I´ve to do more chronos for to confirm the results. And I hope the rainy weather we are suffering from since weeks will stop very soon for to make the flightshoots with the bow, I´m expecting shots at 350- 400? yards.

If I look at the working of the limbs it is very obvious that the further the bow is drawn the straighter the limbs become, so the long tips are not working like static recurves at all. Maybe my wife is right when stating that this bow is built up of 6 bows, 2 longer bows( main limbs), 2 short bows( the transition from the main limbs into the tips) and 2 stiff bows(long tips).

Next BowXplosion will be on the modifyied euonymus- bow mentioned above. 

Don´t be to impatient with the crossbow, it is still in the drying state, cause I´ve had to add another sinew- layer for tiller- reasons.