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Old Mar 06, 2009, 12:56 AM
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question.......here goes

I have not seen an answer to this yet...on a sloflyer (superslow 28) type model can I use hot glue to hold the carbon in place????

Shine
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Old Mar 06, 2009, 05:28 AM
Slipping the Surly Bonds
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Attica, MI
Joined Dec 2006
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Quote:
Originally Posted by Shinear
question.......here goes

I have not seen an answer to this yet...on a sloflyer (superslow 28) type model can I use hot glue to hold the carbon in place????

Shine
Shine,

You can, but this a very heavy option. Could lighten it up if you just tack it every 4" or so. That is assuming you are talking about spars.

There is a big advantage to gluing the entire length of the CF. Besides adding lateral stiffness, fully glued spars contribute to longitudinal stiffness as well. You will not realize this by tack glueing.

Best bet is to get some polyurethane (Gorilla) glue, and use the foaming method mentioned in this thread to get a light fully adhesed carbon to foam joint. Contact cement like Welders glue would be my second choice.

Ken
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Old Mar 06, 2009, 05:46 AM
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United States, CA, San Diego
Joined Jul 2002
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Quote:
Originally Posted by Shinear
question.......here goes

I have not seen an answer to this yet...on a sloflyer (superslow 28) type model can I use hot glue to hold the carbon in place????

Shine

Here are some videos from my site!

1st one shows how to cut a grove (my method)

How to Dremel a Carbon slot in EPP foam (5 min 6 sec)


2nd one show how I use epoxy to glue in the carbon.

How to epoxy a Carbon wing spar video (6 min 8 sec)


I built the yak55 with all 9mm 1.3# epp foam my total AUW (add up weight is only) 5.4oz 6.5 with battery

If I were to build another one I could do some stuff to save weight but the little planes flys great the way she is!
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Old Mar 06, 2009, 12:26 PM
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Wichita, Kansas
Joined Dec 2004
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Here's the "head cam" I'm going to try and build for my next flying session.

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Old Mar 06, 2009, 06:11 PM
Winging it >
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Joined May 2006
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Quote:
Originally Posted by moxjett
Here's the "head cam" I'm going to try and build for my next flying session.

-
Balanced, sleek, light weight, attractive; genius! Just what a cranium Cam should be
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Old Mar 06, 2009, 06:23 PM
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just trying to be cheap...all ways of gluing seam to ruin the cf tubes......with my taxes going up and cap n trade in the future new cf may be a stretch...mmm bamboo may be the ticket.......lol
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Old Mar 06, 2009, 09:09 PM
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Malverne NY
Joined Jul 2007
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Hi Leadfeather

I have some 1.3 EPP in 8 MM and am very tempted to build your yak.If you had to build one now what are the latest changes you would recommend?

Thanks
Charlie
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Old Mar 07, 2009, 09:53 AM
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USA, KS, Wichita
Joined Apr 2008
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Ok here is a video from the Noggin Cam of the Yak flying. I had many distraction during the fight but it was alot of fun. Make sure you turn your sound up so you can hear and play close attention around the 2:14 second mark. This video would not have been possible with out adreher and pixturethis.

Mark

Noggin Cam Yak55 Flight
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Old Mar 07, 2009, 10:21 AM
Winging it >
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Joined May 2006
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Quote:
Originally Posted by Patsy 2 Shoes
Hi Leadfeather

I have some 1.3 EPP in 8 MM and am very tempted to build your yak.If you had to build one now what are the latest changes you would recommend?

Thanks
Charlie
Charlie,

There are two versions I think are the best; one indoor, one outdoor/indoor. Both use the same plans; just different foam and some different guts.

Indoor: Target weight 5 oz or less incl battery

1#, 9mm epp (fluffy foam)
3 HXT500 servos
15 gram Hacker motor
6A Turnigy esc
lightweight Rx
8x4.3 GWS prop
2s 360 mAh battery

Outdoor/Indoor: Target weight 5.5 oz or less + battery

1.3#, 9mm epp (standard foam)
HXT900 aileron servo
HXT500 for rudder and elevator
1500 kV BW or equivalent
Supersimple 10A esc
lightweight Rx
8 x 4.3 SF or 8 x 4 DD GWS prop
2s 360 mAh Rhino battery indoor/ outdoor no wind
3s 360 mAh or larger outdoor

Glue and paint can add a lot of weight if you are not careful. It is possible to do very strong glue joints; full length; adding minimal weight by using PU glues such as Gorilla glue.
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Old Mar 07, 2009, 10:24 AM
Winging it >
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Quote:
Originally Posted by Shinear
just trying to be cheap...all ways of gluing seam to ruin the cf tubes......with my taxes going up and cap n trade in the future new cf may be a stretch...mmm bamboo may be the ticket.......lol
I have recycled and reused CF tubing by tearing it out of the foam and carefully scraping off the glue and foam. Takes patience but saves spendolas (money).
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Old Mar 07, 2009, 10:25 AM
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United States, CA, San Diego
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Troublemaker

Nice video flying indoors must be nice.
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Old Mar 07, 2009, 10:28 AM
Winging it >
leadfeather's Avatar
Joined May 2006
9,653 Posts
Quote:
Originally Posted by Trouble Maker
Ok here is a video from the Noggin Cam of the Yak flying. I had many distraction during the fight but it was alot of fun. Make sure you turn your sound up so you can hear and play close attention around the 2:14 second mark. This video would not have been possible with out adreher and pixturethis.

Mark

Noggin Cam Yak55 Flight
Good video Mark...too funny!
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Old Mar 07, 2009, 10:43 AM
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United States, CA, San Diego
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Quote:
Originally Posted by leadfeather
I have recycled and reused CF tubing by tearing it out of the foam and carefully scraping off the glue and foam. Takes patience but saves spendolas (money).
Another tip if you take a heating gun and you run it over the carbon the epoxy can be pulled off pretty easy and the carbon looks like new.

We can rebuild her bigger faster stronger.

And your right you save money
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Old Mar 07, 2009, 11:13 AM
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Miami, FL
Joined Mar 2007
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Quote:
Originally Posted by tallflyer
Another tip if you take a heating gun and you run it over the carbon the epoxy can be pulled off pretty easy and the carbon looks like new.

We can rebuild her bigger faster stronger.

And your right you save money
i wish i had heard this before! i sit there for hours with a razor blade lol
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Old Mar 08, 2009, 05:30 AM
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Joined Dec 2007
28 Posts
Whats the preferred method of cutting out the plans?

A. Leave the front and rear horizontal brace one piece and split the fuse into two pieces.

B. Leave the fuselage one piece and split the the braces.

I plan on a skinny yak version with ply/foam motor mount.
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