Tillering questions

[bjrogg]

I don’t know if anyone else sees it but on my phone it’s looking like a hinge starting just a couple inches out of the right fade. I’d put a x there and not remove any wood from that spot till everything else catches back up.

Once again it could just be pictures on my phone. Not my favorite way to watch a bend, but that’s what my eye is seeing. Don’t remember it being in the unbraced profile

Bjrogg

PS I agree with Brad. I can see a shooter in the very near future.

[willie]

I don’t know if anyone else sees it but on my phone it’s looking like a hinge starting just a couple inches out of the right fade. I’d put a x there and not remove any wood from that spot till everything else catches back up.

either that or a stiff spot over the loop of white extension cord.
Thomas, could you put some kind of backdrop on the workbench so that the background does not look so busy, and shoot the pic from straight on in the next pic? (evaluating from a single pic is harder than seeing it from many angles and watching it bend)thx

[WhistlingBadger]

Yeah, I know it's pretty hard to see with all the junk in the background.  I'll see what I can do.

[Eric Krewson]

I can see thicker and thinner places in your limbs, a lot thinner in some.

You may already know this but if you lay out your bow with side profile lines you will have a more even taper stem to stern.

[WhistlingBadger]

I can see thicker and thinner places in your limbs, a lot thinner in some.

You may already know this but if you lay out your bow with side profile lines you will have a more even taper stem to stern.

Yes, I started out that way...somehow it got all uneven.  There are also spots that are uneven left-to-right.  I'm working on evening those up.

I really want to get this one shooting, but I am already thinking that I'm going to do my next one a lot different.  Surprise, surprise.   

[PatM]

Can we see some close ups of the limbs?  The belly surface and sides, not what the bend is like.

[willie]

Yes, I started out that way...somehow it got all uneven.

are you familiar with the faceting method advocated by Dean Torges?

[Morgan]

Yes, I started out that way...somehow it got all uneven.

are you familiar with the faceting method advocated by Dean Torges?

Is this something you can describe or are willing to share a link about. May know what you mean, but if it’s something I haven’t seen, I want to learn.

[PatM]

Yes, I started out that way...somehow it got all uneven.

are you familiar with the faceting method advocated by Dean Torges?

Is this something you can describe or are willing to share a link about. May know what you mean, but if it’s something I haven’t seen, I want to learn.

   It just means reducing the belly with multiple  narrow flat surfaces instead of going for a broad flat surface or a curved surface all at once.

 You still need to be able to execute accurate reduction, it's not going to be a miracle.

[willie]

http://www.primitivearcher.com/smf/index.php?topic=50431.0
some discussion and a drawing


some pics here that go with the book

Code: [Select]

http://www.bowyersedge.com/faceting.htmlclick on "select", and paste into your browser

[WhistlingBadger]

Never heard of the faceting method.  I'll look into it.  I've just been making the belly flat.  Here are some pictures.

Right limb, straight on:
right limb straight on by Whistling Badger, on Flickr

Right belly:
right belly by Whistling Badger, on Flickr

Right fade:
right fade by Whistling Badger, on Flickr

Left Fade:
left fade by Whistling Badger, on Flickr

Left Belly:
left belly by Whistling Badger, on Flickr

Left Limb straight on:
left limb straight on by Whistling Badger, on Flickr

[willie]

Thomas, is it a pyramid front profile?  Establish your thickness line again. something we can visually reference if you post another pic of the bend so far.

[Eric Krewson]

If you draw your side profile lines on all four sides of your limbs, pay attention and never rasp through them you will keep a very consistent limb profile and seldom have a limb dogleg to one side or the other when you string the bow.

I make slightly rounded belly bows and drop my lines 1/16" every 6" until I get to 1/4" then carry this height to the tip of the limb. My side profile line may be 1/4' but my limbs go from almost flat belly to an oval belly starting about 12" from the tip so my tip limb depth is close to 1/2" thick. I make my limb tips less than 1/2" wide with 3/8" being common.

For a flat belly bow you may want to make your first side line height at 5/8" or a little taller.

If you get your bow shaped and still have too much poundage, drop your lines another 1/16".

[WhistlingBadger]

Thomas, is it a pyramid front profile?  Establish your thickness line again. something we can visually reference if you post another pic of the bend so far.

It's a sudburry-style front profile.  So, at this point, should I even up the thickness regardless of bend and then go from there, or should I just keep tillering and hope for the best?

Also:  If I'm going for an even, elliptical tiller, aren't the wide places in the limb going to be thinner than than the thinner parts out toward the tips?

[Eric Krewson]

I wish Jim Davis would chime in, he has made more pyramid bows than anyone around and could answer ALL your questions.