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Main Boards => PowWow => Topic started by: Steve Kendrot on February 24, 2007, 09:54:00 PM

Title: clamping alternatives
Post by: Steve Kendrot on February 24, 2007, 09:54:00 PM
I am trying to amass the tools needed to attempt my own BBO. C-clamps seem to be the preferred alternative for the glue-up stage. Has anyone tried the spring clamps? I saw them in home depot for .99 each and the 2" ones seemed to apply a fair degree of force. I noticed DT uses them in his BBO video to hold the piece while he's working on it, but not for the glue.
Title: Re: clamping alternatives
Post by: Bowchef on February 24, 2007, 10:08:00 PM
Go to Staples and buy 3 packages of spring steel binder clips.  Line them up side by side down both sides during glue-up.  They create good even pressure and I haven't had any problems with excessive glue lines.  Less than $15 for three packs.
Title: Re: clamping alternatives
Post by: Steve Kendrot on February 24, 2007, 10:18:00 PM
Dang...office supplies. I never would have thought of that. Thanks for the tip!
Title: Re: clamping alternatives
Post by: Pat B on February 24, 2007, 10:47:00 PM
I have used spring clamps and they work well. I use about 15 for each limb. Don't buy the plastic ones if you are useing a hotbox. I have found that with screw clamps they seem to loosen during a heated cure time. The spring clamps self-adjust for wood srinkage...but now that I know about the binder clips, I'll get a mess of them to try. Thanks.   Pat
Title: Re: clamping alternatives
Post by: wingnut on February 25, 2007, 09:07:00 AM
Dang you can buy 3" C clamps for a song at Harbor Freight.  I have over 100 of them and use em every day. Think I paid $2.99 last time I bought them.

Mike
Title: Re: clamping alternatives
Post by: Sneakypete on February 25, 2007, 11:01:00 AM
Not that you don't already know this, but the primary danger with C clamps is applying too much pressure and squeezing out too much glue/expoxy. After 3 dozen bows, I'm still trying to learn this lesson, as there's always this irresistable urge to tight just "a tiny bit more." Big spring clamps have worked well for me. The bowyer to taught me uses inch-wide strips of bicycle innertube to wrap the full length of the bow. But that's with glue and straight longbows only.
Title: Re: clamping alternatives
Post by: Steve Kendrot on February 25, 2007, 11:59:00 AM
All I could find at Harbor Freight were variety packs and 6 inchers. So three inch c-clamps are big enough? Most of the pics I've seen looked like bigger clamps.
Title: Re: clamping alternatives
Post by: wingnut on February 25, 2007, 12:31:00 PM
I use both 4" and 3" to do bbo blanks.  I just drive to HF and get mine.  They don't show everything on the website.

Mike
Title: Re: clamping alternatives
Post by: Steve Kendrot on February 25, 2007, 01:20:00 PM
Thanks Mike. Long drive for me. Maybe I'll call them.
Title: Re: clamping alternatives
Post by: Java Man on February 25, 2007, 04:04:00 PM
1 1/2" clamps are big enough for the limbs.  You can get more of them in there, the smaller they are.
Title: Re: clamping alternatives
Post by: trh1 on February 25, 2007, 05:02:00 PM
I know very little about bow making. Would a torque wrench be helpful on how tight to clamp asuming that you can get clamps that a socket would fit. Sorry if its a dumb question.
Title: Re: clamping alternatives
Post by: Big Dave on February 25, 2007, 06:33:00 PM
Bowchef, do you use 2 clamps(1 on eachside)as you go down the limb or just 1 in the middle?  :confused:    :confused:
Title: Re: clamping alternatives
Post by: Bowchef on February 25, 2007, 07:45:00 PM
One on each side