Ozbow

Hi Jape No idea why the bow would change shape while unstrung -- the deal with MC affecting the durability/stability is only a consideration if the bow is strung and/or drawn. The only explanation I can think of for your bow is that the end that has changed shape has expanded or contracted by differ...

Hi Simon I think all that appear above is true. But the simple answer is that bows of any wood are more likely to break at lower MC and will take more set at higher MC. Obviously some woods are more critical at low MC than others but the local timbers show the same range of susceptibility that impor...

Hi Steve
I have seen video of an arrow with a very loose nock leave the string at the beginning of the release then the string catch up with it towards the end of the string travel -- this would have to give you erratic arrow flight as the string is unlikely to re enter the nock cleanly.

Graeme

Looks good Grahame --- easy to get the weight right if you rebuild with the same design but as you found, changing a bunch of things makes it difficult.
Glad it worked out for you and looking forward to seeing some more photos and testing.

Graeme

Hope everyone has a happy and safe Christmas break

Graeme

Thanks Glenn --- Have a good Christmas
Regards Graeme

I just love those things -- they remind me of a si-fi animation I saw some years ago of life on another planet because they certainly look "otherworldly" GKL

Great photos -- the lower flower is a Ginger Plant -- truly exotic. ---GKL

Hi ??? Stickandstring I can not really help you with a plan -- after a while you can just take a piece of wood or boo and guess what sort of bow it will make and work it down until it shoots. I am guessing that since you are asking for a plan that you are fairly new to bow making since wooden bows d...

Hell NO -- Say what you want, just dont expect too much or your bound to be disappointed.

I am all for optimism and belief in our fellow men -- It just does not seem to work too often.

GKL

They dont seem to an emoticon for jaded and cynical

Hi Mark

You seem to be making the mistake of thinking that people behave rationally -- that will get you into heaps of trouble

GKL

Hi Grahame -- the honeycomb wont work, all the foam cores are Syntactic foam and in my composite experience it is only product about with suitable properties. GKL

Hi Rod -- it would be fine as a core. GKL

One would have to make ones own decision about that old chap

GKL

I was thinking " Uber Trad " might be the appropriate term. And YES.

Graeme

Hey Kevin -- That is the worst excuse I have ever heard for not making a bow -- Its not how good it turns out but the fact that you gave it a go. The test of success is whether the arrow moves forward not much else and the only bows that break before you get to use them are the ones built by people ...

I'm wIth Perry -- Foam cores with diagonal carbon and siyahs that are tubular and hollow made out of woven carbon sleeve with a bias weave so you can get it neck down tightly on your wax form that you will melt out after it cures.

Graeme

Hi Grahame One of the problems with the adaption of traditional designs to modern materials is -- as you have found, that you end up having to reduce the thickness to get usable draw weights and this reduction leads to torsional instability. So the message here is that you can not use the unstrung p...

Hi Steven
I will have it -- I want to glue the boo together with it so I can temper the belly for tiller.
Send me a PM with your address and I will send you postage

Graeme

Hi Glen The species is as Steve said. ( lucky he replied since I could not remember) From your experience which species are best in compression ?? We have many species available in Australia but not much info on performance as bow material so any insights about different characteristics would be val...

Life is a balancing act -- GKL

Hi Grahame

That was not what I wrote but a quote off the BCY site I gave the link to ----GKL

Hi Perry The thing we were observing was the string getting longer when drawn and returning to the original length at brace height. I was reading the technical stuff on the BCY web site today and they use the reverse description to you where they define creep as permanent elongation and stretch as r...

Hey Steven -- These days it takes me all day to do what I used to be able to do all day -- GKL

A couple of thou side to side will be fine . ---GKL

Hi John The bamboo on the belly has only been flattened on one side -- the outside that is the belly still has the nodes and has not been touched -- you can see the nodes in the photo near the top of the page. I am not sure how it would work if you remove the nodes since it weakens the bamboo but I ...

Hi Rod

Thats easy to fix -- just tell your mates you will help them make a bow and you will have lots of company in you workshop -- GKL

Hi Rod When you grind you first lam -- it can be parallel -- you need to measure it at both edges with a vernier to see if it is flat or not -- you then pack the grinder where it bolts to the bench to change the angle and get it to grind flat. If the lams are thicker one side than the other the limb...

Hi Rod Lovely bow. Looks like you are really in the game now -- working on refining the bows rather than making them work. The funny part is that after you get over the initial learning curve which seems very step and move on to the refining phase you realise the first bit was easier than you though...

No we need one with a little thought cloud with a light bulb in it -- GKL