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Old 11-08-2009, 01:29 PM   #1441
sensei
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Default Re: Ultra Light 55% Extra 260

Here are the molds, I just finished side 2 of the wheel pants tooling, so I will get pictures of that tomorrow after everthing is cured and I get it demolded.

Bob
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Old 11-08-2009, 01:32 PM   #1442
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Default Re: Ultra Light 55% Extra 260

Quote: Originally Posted by Rod
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Are you going to make cowl mold in 1 piece?
Hello Rod,

It will be a one piece engine cowling tool.

Bob
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Old 11-08-2009, 03:15 PM   #1443
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Default Re: Ultra Light 55% Extra 260

Looks great Bob!!!

I saw that you called this morning. I'll ring you after we get back from dinner.
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Old 11-08-2009, 03:16 PM   #1444
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Default Re: Ultra Light 55% Extra 260

my wife said she thinks i should do this project once it comes out!
THANKYOU wife! i knew there was a good reason i married you!
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Old 11-08-2009, 03:28 PM   #1445
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Default Re: Ultra Light 55% Extra 260

That looks bitchin.
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Old 11-08-2009, 03:33 PM   #1446
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Default Re: Ultra Light 55% Extra 260

Thanks guys,

I guess it is time to go back to work on the conopy tool.

Bob
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Old 11-08-2009, 04:50 PM   #1447
Rod
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Default Re: Ultra Light 55% Extra 260

Quote: Originally Posted by sensei
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Hello Rod,

It will be a one piece engine cowling tool.

Bob
Looks good Bob. I admit I was a bit skeptical about the deep draw on the one piece mold, but it looks like it came off OK. Have you looked at Zyvax release products. Fast and easy to use, especially good for production as it doesn't require application every time.
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Old 11-08-2009, 05:10 PM   #1448
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Default Re: Ultra Light 55% Extra 260

I think I see a hole in the center of the tool? Did you by chance use a little compressed air to help remove the tool from the master?
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Old 11-08-2009, 06:27 PM   #1449
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Default Re: Ultra Light 55% Extra 260

Quote: Originally Posted by FlyBriel
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I think I see a hole in the center of the tool? Did you by chance use a little compressed air to help remove the tool from the master?
That is right, on many tools I have manufactured over the years, I have placed a hole at the deepest part of tool as a means of blowout with compressed air.

About 16 years ago I was involved with manufactureing spinners for the unlimited class full scale racing aircracft, and a blowout hole was an essential practice for the demolding process.

Bob

Last edited by sensei; 11-08-2009 at 06:40 PM.
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Old 11-08-2009, 06:35 PM   #1450
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Default Re: Ultra Light 55% Extra 260

Bob, what size building table do you recommend for building this plane?

Excellent build, I can't wait for updates everyday!

Last edited by Kevin B; 11-08-2009 at 06:52 PM.
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Old 11-08-2009, 06:37 PM   #1451
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Default Re: Ultra Light 55% Extra 260

Quote: Originally Posted by Rod
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Looks good Bob. I admit I was a bit skeptical about the deep draw on the one piece mold, but it looks like it came off OK. Have you looked at Zyvax release products. Fast and easy to use, especially good for production as it doesn't require application every time.
I have heard that is good stuff, but have never tried it in our production cycles. I have been using Freekote FMS to seal the tools and Freekote 700 NC as the release agent for the last 17 years or so, and we pull 4-6 high temp pre-preg parts per application of the 700 NC. I have found that if you coat the tool every cycle with a mold release, it will begin to build up too much and actually make the demolds more difficult.

Bob
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Old 11-08-2009, 06:39 PM   #1452
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Default Re: Ultra Light 55% Extra 260

Quote: Originally Posted by Kevin B
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Bob, what size building table do you recommend for building this plane?

Eacellent build, I can't wait for updates everyday!
I think a 100" X 36" table would be optimum for this airplane.

Bob
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Old 11-08-2009, 07:41 PM   #1453
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Default Re: Ultra Light 55% Extra 260

Hey Bob,
What tooling resin are you using? I have never seen white off-white unless you are just tinting?
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Old 11-08-2009, 07:59 PM   #1454
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Default Re: Ultra Light 55% Extra 260

Bob looking awsome. I am glad you got a lot of work done. I missed ya flying at the air show maybe next time and the 55% er will be done by then and the Blue Angels will be there. Keep after it man.
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Old 11-08-2009, 08:33 PM   #1455
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Default Re: Ultra Light 55% Extra 260

Quote: Originally Posted by Twizlair
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Hey Bob,
What tooling resin are you using? I have never seen white off-white unless you are just tinting?
I am using HTR 250, and 302 face coat. The face coat comes in white or gray, both the resin and face coat are from Resin Services, and can be also purchased from Decomp Composites.

Bob
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