Edge gluing balsa - RCCanada - Canada Radio Controlled Hobby Forum
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Old 02-16-2003, 01:55 PM   #1
Jan Blom
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Edge gluing balsa

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Iwas just gluing up sheeting for the flite surfaces of my Edge and decided to try this and it works well...Spread your white glue along a piece of smooth material like melamine, squeege and just dip the balsa and viola!!
I use another piece of melamine to glue them up with masking tape every 6-8" and weights to keep the sheeting from buckling.
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Old 02-20-2003, 10:57 AM   #2
Don Bright
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Edge gluing balsa

Hi Jan: I do mine a little different. I'll fit the pcs -using a 3' pcs of angle alum. 3/4 x3/4 or whatever with sandpaper glued to one edge, then use a strip of masking tape down the joint. If it is a wing skin for example I'll put all the pieces together like this first, then flip over on my bench I can open each joint over the edge, run a bead of med instant glue down the joint, flatten it back out on table, quick swipe with rag cleans off extra glue and pushes pcs down flat, then hit it with sandpaper to smooth surface and fill any voids if joint isn't perfect. Once its all glued together flip over, take tape off other side, quick sanding and its done. Been doing this way for probably 30 yrs, and its quick and easy once you get the hang of it. Originally I used white glue until instant glues became available. Then had to pin down to ceiling tile or weigh down somehow til dry, what a pain.

Don MAAC # 6675
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Old 02-20-2003, 11:11 AM   #3
Terry Gauvin
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I pretty much do the same thing Don and it does work great. Must emphasize to be quick to wipe off the excess CA. If it dries before you wipe and sand you will not be happy with the results. That CA is impossible to sand when dried.
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Old 02-20-2003, 06:40 PM   #4
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joining balsa sheets

I do the same thing but first I send both pieces thru a jointer/planer to staighten both sheets so they mate evenly.
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Old 02-27-2003, 11:40 AM   #5
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Edge Joining Sheets

I do it the same way as Don, but I use good old balsa cement, like "Sigment". It's cheap, it shrinks and pulls the sheets tight together, and it sands out beautifully. I mostly use CA for building, but I've never had any success sanding it out in this application.

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Old 02-27-2003, 10:52 PM   #6
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Edge Joining Sheets

I use the "sigment" glue also. It's much easier to sand. The only other time I use "sigment" is for the grand daughters' "Delta Darts"..Ahh the "good old days"

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Old 02-28-2003, 01:46 PM   #7
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Before gluing my Edge skins I sanded them with a random orbital before skinning both sides, just a quik pass on the inside and fine finish on the outside, works great! I will stick to my method, I've tried CA but the fumes!
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Old 02-28-2003, 07:37 PM   #8
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Hi Folks,
I use a glue called "Probond" when sheeting foam wings and don't edge glue the sheeting before glueing the sheeting to the foam. I tape the sheeting together and then fold back the sheeting and squeeze the Probond into the edge along the seams. I do this for before applying the glue to the balsa. The sheeting however is edge trued so there aren't any large gaps in the sheeting when I make up the wing skins.
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Old 02-28-2003, 09:36 PM   #9
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When I edge glue balsa for sheeting, I take my sheets over to the edge sander to straighten them out. Tape one side while butting them together, and fold back, spread a bit of white pva wood glue and then fold back, put a bit of weight on it and its done. Thats when I need it to be accurate and look good.

When I go fast, like when I am building a beater profile fun fly or something that I dont care too much about, I just use medium CA and try and get the joint as close as possible Hit it with a coarse sanding block and its done.
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