laminate bow form; hose or clamps

[timbermoose]

friend of mine is getting back into building laminate longbows, going with r/d design instead of the "trusty" hill style he used to make. which do you guys prefer for the press? air hose or clamp method? what is your reasoning behind it?

[timbermoose]

forgot to add, he used to use the bike tube method, but is tired of getting new tubing every time he makes a bow. I'm a selfbow guy and will be learning along the way to "expand" my horizons.

[D]

I use the inner tube method.  I guess that would fall into the clamp method.  I do think the air hose method gives a more consistent glue line though.  I just had a couple aggravating issues with the hose way is why I went to something else but all of those problems was operator error.

[cunruhshoot]

I have only used the air hose method but have had great success with it and it is consistent. I believe the key to the air hose method is a well built form allowing the correct gap for the hose allowing the hose to apply preasure evenly across the width of the lams.

[Sam Harper]

I like the clamp method better because:

1.  It's easier to make a clamp form.

2.  You can vary the size and shape of the handle.

3.  It's kind of a pain trying to put the top part on a hose type form and get everything bolted.

[timbermoose]

talking with my bud, he's wanting to make 5 presses and ovens. he currently has 14-20 bow orders in the works for some hunting club, full of rich guys wanting to get into archery. there are about 250 members currently, so the potential is there for many more bow orders. ill be whipping out the arrows(gonna build a router jig, no more hand planning) and a few selfbows.

[MoeM]

I`m going to get myself a pneumatic press this week.
I`m through with the inner tube method. It`s faster, smoother, cleaner, safer and excellent for a lazy one like me^^

[Crooked Stic]

Air hose method here. And yes the key to it is a square form and proper gap for the hose and layup.

[milehi101]

I have used the air hose method for 14 years and would use nothing else

[LittleBen]

I've used spring clamps with great success on all wood laminate bows. I had some trouble at first, but I found that using a hickory or oak pressure strip helpos alot ... and using alot of clamps.

The air hose method seems better frankly ... only thing is it takes more equipment, and as mentioned the handle style is set.

Either works fine. If I was gearing up to make 15 bows, I'd probably get the air hose. There's nothing fast about putting 100 spring clamps on a bow form ....

[recurvericky]

With the hose method, you can change the handle style if you make inserts for different handles.

[goobersan]

hose. far more consistent

[Gundog68]

I tested all three methods. First, you do not need new inner tubes every new bow. You do something wrong with the wrapping of the bow...
Clamps need more time so i stick now with inner tubes and over this the hose. I used the hose several times alone but get little movements in the lams. So i take the inner tubes for precise layout and pre checks, then put the hose on top an take a rope over the hose and the bolts where the inner tubes already are. Put pressure in the hose and put it in the oven.

[BigJim]

I built an elaborate clamp system when I first started and look at that pile of junk nearly every day as I air up the hoses in my forms.

I honestly have never glued up a bow and assembled my form thinking "boy this sure is a pain to put together" Probably because there isn't time to think that since it is done so quickly.

Yes, there is a little more build time in  making an air hose form, but it pays dividends for years to come.

bigjim

[MoeM]

Just assembled my hose today... can`t wait for the pump to arrive tomorrow. Parts are all cleaned up and ready to glue for 5 days now   :rolleyes:

[LittleBen]

Good call Jim, Sometimes you just need to do the hard work up front and make your life easier in the long run.
Do you use a compressor or can a manual pump like a bike pump work?

[onemississipp]

I use a foot operated bike pump. Doesn't take long filling such a small space.

[timbermoose]

decided im going with the hose method. got a small compressor so that will be quick. getting the press and oven materials this week sometime.

[Gundog68]

Originally posted by MoeM:
Just assembled my hose today... can`t wait for the pump to arrive tomorrow. Parts are all cleaned up and ready to glue for 5 days now    :rolleyes:  

Please check the hose min. twice... I get once some stress with a "later" leak with the bow in the oven ;-)

[MoeM]

Oh I will do so for sure!
Got a "Topeak Joeblow" bikepump and ran the first test with 4bar~60PSI when I checked pressure after 8h the gauge showed only half the pressure but I think I lost most when connecting the valve again... I hope so!
Btw. the handpump works well, it takes only about half a minute to inflate 2m/80" hose.