Author Topic: Just a cheap try (Major Tiller-Problem)  (Read 7806 times)

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Offline simk

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Re: Just a cheap try
« Reply #15 on: February 13, 2018, 01:35:55 am »
Hi Folks

I live in Switzerland, where a lovely Day just started...many thanks for all your good vibes an compliments!

I started building bows exactely one year ago and did some 10 working bows up to now.

Then i got fascinated in the Idea of building a angular selfbow - and here it is.

The nocks came into my mind as i tried to do the most simple and functional nocks...

But now you deserve the full truth - don't hit me.

Greetz

Simon

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Offline simk

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Re: Just a cheap try
« Reply #16 on: February 13, 2018, 01:39:48 am »
---and some more...
« Last Edit: February 13, 2018, 01:48:45 am by simk »
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Offline DC

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Re: Just a cheap try
« Reply #17 on: February 13, 2018, 10:01:16 am »
The notch in the handle scares me a bit but I've wanted to try splitting a limb like that. Way to go.

Offline aaron

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Re: Just a cheap try
« Reply #18 on: February 13, 2018, 10:26:25 am »
awesome- I have always wanted to try deflexing like that! We're gonna need more details:
what glue?
did you smooth the limb glue surfaces after sawing? How did they match up after bending?
Ilwaco, Washington, USA
"Good wood makes great bows, but bad wood makes great bowyers"

Offline ohma2

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Re: Just a cheap try
« Reply #19 on: February 13, 2018, 12:16:49 pm »
Keep posting ,your going to be interesting to watch

Offline simk

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Re: Just a cheap try
« Reply #20 on: February 13, 2018, 02:32:42 pm »
Hi Folks

This one was just an experimental test bow - my working accuracy was very low and i did a lots of faults, from which i learnt a lot i and have already plenty of thougts about refining the concept.

For example about deflexing the handle: I did a crack by the saw. This causes more of a stretching instead of an bending in the wood above (ok, i used fresh wood, that makes it a bit easier...but i also cut it too/unnnessessarily deep accidentally, because i was in a hurry.

So for saftey reasons i eventually reinforced it with epoxy/glasfiber. So it works by know - i don't no if it would without?

Probably better use steam, especially with dry wood.

Even better - that's what i will do next time: I properly cut out a bigger piece of wood at the belly of the handle (ca. 2/3 of the diameter) bend the bow (maybe with steam) and fit the piece properly in again. With this method you will not cause a stretching-zone in the handle but a real bending zone.

I glued the bow with common epoxy (attachments). The epoxy also fills the space in the unclean cut.

Cheers
« Last Edit: February 13, 2018, 03:11:15 pm by simk »
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Offline simk

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Re: Just a cheap try
« Reply #21 on: February 13, 2018, 02:59:04 pm »
@ aaron

I didnt smooth the limb glue surfaces. A good saw makes a proper cut and the resin goes well in the cappillars i think...

But better use a bandsaw for a thinner and cleaner cut - that was probably my biggest fault. Although my cut is not clean in the limb in any direction the limbs fit well mostly - but there are also very bad sections. If you do a +/- proper cut and have enough clamps you will have no problems with matching the limbs exactly. The most difficult part in the project is the cut: Anticipate where to do the cut in the limb and then really cut it there precise. With the cut you +/- define the draw weight also.

Cheers
« Last Edit: February 13, 2018, 03:03:27 pm by simk »
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Offline Springbuck

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Re: Just a cheap try
« Reply #22 on: February 13, 2018, 06:48:08 pm »
  I like a "beginner" with a head full of good ideas!  Nice bow.

  For anyone interested, "sorbus" or "sorba" is the same as rowan.  I didn't know, so I looked it up.
« Last Edit: February 13, 2018, 07:31:13 pm by Springbuck »

Offline Parnell

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Re: Just a cheap try
« Reply #23 on: February 14, 2018, 08:02:49 am »
Very interesting post and beautiful photos of where you live.  Welcome to PA.
1’—>1’

Offline simk

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Re: Just a cheap try (there's something going on in the hood...)
« Reply #24 on: February 20, 2018, 02:21:59 pm »
I have a little question about my black locust stave:

After removing some rings there still remain 2 spots, where you can see fungal-water-stains; they are, where the bark was a bit damaged.

I'd like to keep the sapwood. What would you do? Ignore? They look very cool at least ;D

Cheers and thanx
« Last Edit: February 20, 2018, 02:31:13 pm by simk »
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Offline Morgan

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Re: Just a cheap try (there's something going on in the hood...)
« Reply #25 on: February 20, 2018, 04:28:47 pm »
Wow. I didn’t know fungus would get at black locust heartwood. Thought that stuff was rot proof, bug proof, and fungus proof. Curious to hear what others say about that...

Offline TimBo

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Re: Just a cheap try (there's something going on in the hood...)
« Reply #26 on: February 20, 2018, 09:27:57 pm »
I would remove the sapwood - it doesn't look trustworthy.  Hopefully the heartwood is OK.

Offline DuBois

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Re: Just a cheap try (there's something going on in the hood...)
« Reply #27 on: February 20, 2018, 10:49:32 pm »
 :-\ I know this is hard but just keep at it, you'll catch on sooner or later.

Offline simk

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Re: Just a cheap try (there's something going on in the hood...)
« Reply #28 on: February 21, 2018, 06:48:04 am »
Thanks for your thoughts. Still hope for more opinions for my decisionmaking.

The design of the stave ist already worked out to be used with the sapwood.

How about applying a linen-backing? Would this maybe help a bit?

Cheers
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Offline willie

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Re: Just a cheap try (there's something going on in the hood...)
« Reply #29 on: February 21, 2018, 02:00:21 pm »
Simon,

I like your willingness to try new methods, and I guess we will see what happens with that black stain. It almost looks like the wood may have been damaged and gave the fungi a place to get a start.