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Old 12-10-2012, 08:13 PM
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Back to the Basics!
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Anticipation.........Can't wait! It's time for a road trip!
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Old 12-10-2012, 08:40 PM
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IMAC Junkie
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Lexington,NC
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Quote:
Originally Posted by wmat7039 View Post
NICE Thread.... It's looking great Jerry.
Hmmmmm..... Any chance he's laying "other tow"??
Wayne
Yes- Part of the trip to my house was to work on foam for you.


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Originally Posted by Downhumpty View Post
Anticipation.........Can't wait! It's time for a road trip!
Come on-

We saved some work for you when you get to Jtec.
You can run the foam cutter this time. Melting foam and burning wood is awesome.
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Last edited by Jerry_Hailey; 12-10-2012 at 08:45 PM.
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Old 12-10-2012, 09:17 PM
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Quote:
Originally Posted by Downhumpty View Post
Anticipation.........Can't wait! It's time for a road trip!

just say when!!
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Old 12-10-2012, 10:04 PM
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JTEC RADIOWAVE
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Mooresville, NC
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Quote:
Originally Posted by pcastine View Post
Ron, if you build one, just be sure to build in some type of automatic hatch-fastening system so we won't have to chase your hatch down in the woods!!!

Jerry - you using standard wood glue for the build? Is there much laser burn to clean up before gluing? I remember building an old ******** kit, and spending hours just cleaning the laser burn off the parts so the glue would stick....

Pete
Pete,

I try to do my best about the wood burn with the laser. Most of the burn you will see is a very light browning kind of a clean looking burn. The burn itself depends a lot on the material being cut, the focal length of the laser, cleanliness of the laser mirrors, feed rate, power rate and air source. It is amazing how much I have learned all about that stuff in the time that we have had the laser and I continue to learn. By learning all those things I have been able to reduce our required cut power by about 25% and increase our speed by about 15% and still get a nice clean looking burn. When it comes to materials like plywood you also have to take into consideration the glues used when layering the ply, that is one of the things that makes aircraft ply so hard, they use a waterproof epoxy that is really tough.

I know one of the big conspiracy theories when it somes to laser cutting is that the burned joints will not hold up as well or will not glue as well. A friend and I actually did a test of it one day and there is no noticable difference in a joint that has no burn/been sanded or a joint that still has the burn on it from the laser.

Kevin
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Old 12-11-2012, 02:59 AM
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Approaching critical AoA...
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United States, VA, Fredericksburg
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This particular kit I built came out of Florida around 2004. The laser burn was such that if you rubbed your finger across an edge, it'd come away black with burn residue. I spent more hours cleaning parts than I did gluing them together I think. I swore I'd never build another laser kit. Now you're making me re-think that....

Pete
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Old 12-11-2012, 04:19 PM
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Who put that tree there?
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Fort McMurray AB
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Al/Kevin I think I see a 3.2M 300 in my future next fall. It would be a good project for my 3W210 unless you think the 3.1 would be better. I was thinking about the extra wing area for the heavier engine.
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Last edited by Super08; 12-11-2012 at 04:35 PM.
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Old 12-11-2012, 04:48 PM
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We been flying the prototypes with everything from a 150 to a DA 200 in both versions. Jason flew the CS at Clover Creek with the 200 in it and did great. Unfortunately the final round doesn't tell the story. He and Gernot were miles ahead all week before the finals. So basically it just come down to prefrence.

If you decide to use the 210 on either version let us know the length of the engine and we can cut the engine box for it and the firewall if we get the bolt pattern

Al
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Old 12-11-2012, 04:51 PM
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Who put that tree there?
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No problem Al, but it is about a year away. I don't want to mess up this thread with other stuff.
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Old 12-11-2012, 05:05 PM
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JTEC RADIOWAVE
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I think it would be a flip of a coin really on weather to do the 3.1m or the 3.2m version. If you are going to IMAC it then I would probably lean a bit towards the 3.1m because of the longer fuselage will give you nice clean lines. Realistically though 99% of us probably could not tell the difference between the two version as far as flight characteristics.
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Old 12-11-2012, 05:08 PM
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JTEC RADIOWAVE
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Originally Posted by Super08 View Post
No problem Al, but it is about a year away. I don't want to mess up this thread with other stuff.
by no means are you messing up the thead. If anything you helped because we can talk about different engines and that we are willing to change the firewall distance you may need for those different engines.
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Old 12-11-2012, 05:12 PM
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Who put that tree there?
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Cool, I had fired off a PM to Al as well about the tunnels.
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Old 12-11-2012, 05:49 PM
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tap....tap.tap... is this on?
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Guys!! Looking Great!
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Old 12-11-2012, 07:03 PM
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Old 12-11-2012, 07:09 PM
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Team JR
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Very nice kit, I see one in my future !

Albert
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Old 12-11-2012, 08:36 PM
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IMAC Junkie
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Quote:
Originally Posted by Super08 View Post
Al/Kevin I think I see a 3.2M 300 in my future next fall. It would be a good project for my 3W210 unless you think the 3.1 would be better. I was thinking about the extra wing area for the heavier engine.
I have a lot of stick time on both the 3.1m and 3.2m, and like Kevin said they are close. Unless you fly one right after the other it's hard to tell. I have flown the 3.1 and 3.2 back to back and have found the following:

The 3.1 is better at precision flying, it rolls better, snaps better, the stall is more pronounced, and cuts the wind better.

The 3.2 floats better, so the slow high alpha 3D maneuvers are easier. Killer 3D plane.

I like the 3.1m. Even with the heavier Engine it would be my choice.
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