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Forum: Composites Fabrication And Repair

07-18-2013, 07:26 AM

Replies: 12

Good yet inexpesnive material for CNC mold/tool

Views: 9,289

Posted By Caygeon Flyer

RE: Good yet inexpesnive material for CNC mold/tool

We get our blue Styrofoam from a building supply or lumber store. Pink foam would work as well. Both have about a 2 lb density and uniform structure, not like the white foam. I live north, so it...

Forum: Composites Fabrication And Repair

07-18-2013, 04:55 AM

Replies: 21

Fiberglass Layup for a Large Model

Views: 9,201

Posted By Caygeon Flyer

RE: Fiberglass Layup for a Large Model

Here is one of our first parts;
Lay up is 9 oz. and 3 oz. sandwich in epoxy with 6mm diviny foam in flat areas, vacuum bagged.

Weight is good and stiffness is great.

Forum: Composites Fabrication And Repair

07-18-2013, 04:40 AM

Replies: 12

Good yet inexpesnive material for CNC mold/tool

Views: 9,289

Posted By Caygeon Flyer

RE: Good yet inexpesnive material for CNC mold/tool

We have just done something similar to what sensei reported.
Machined a plug out of blue Styrofoam, then surfaced it with glass cloth. Not finished machined, just filled and sanded. The moulds...

Forum: Composites Fabrication And Repair

06-21-2013, 05:14 PM

Replies: 21

Fiberglass Layup for a Large Model

Views: 9,201

Posted By Caygeon Flyer

RE: Fiberglass Layup for a Large Model

I continue to appreciate all the input from folks. It is helping!!!

I have attached some photos of the parts that will be assembled to make the mould.
Today we decided to make the final...

Forum: Composites Fabrication And Repair

06-21-2013, 05:12 PM

Replies: 21

Fiberglass Layup for a Large Model

Views: 9,201

Posted By Caygeon Flyer

RE: Fiberglass Layup for a Large Model

Here is a photo of the aircraft that I am trying to model - sort of a modernized Seabee

Forum: Composites Fabrication And Repair

06-16-2013, 07:52 AM

Replies: 21

Fiberglass Layup for a Large Model

Views: 9,201

Posted By Caygeon Flyer

RE: Fiberglass Layup for a Large Model

Good Ideas Sidgates. Thanks

Caygeon Flyer

Forum: Composites Fabrication And Repair

06-13-2013, 12:04 PM

Replies: 21

Fiberglass Layup for a Large Model

Views: 9,201

Posted By Caygeon Flyer

RE: Fiberglass Layup for a Large Model

Thanks MattK.

Looks like very solid advice!

Caygeon Flyer

Forum: Composites Fabrication And Repair

06-12-2013, 06:30 PM

Replies: 21

Fiberglass Layup for a Large Model

Views: 9,201

Posted By Caygeon Flyer

Fiberglass Layup for a Large Model

I would appreciate some guidance on the fiberglass layup for a project that I am building. I have never done a complete composite fuselage before, so this is a learning experience for me.

I am...

Forum: Batteries & Chargers

05-07-2006, 06:03 PM

Replies: 2

NiCad/NiMh Discharge Rate - 10C? or more?

Views: 1,563

Posted By Caygeon Flyer

RE: NiCad/NiMh Discharge Rate - 10C? or more?

Thanks Richrd.
I agree that if you run a battery at 10C your are only going to get a 6 minute flight, and that most of us are able to consider 10 to 15 minute flights theste days. For me, I find...

Forum: Batteries & Chargers

05-03-2006, 07:07 PM

Replies: 2

NiCad/NiMh Discharge Rate - 10C? or more?

Views: 1,563

Posted By Caygeon Flyer

NiCad/NiMh Discharge Rate - 10C? or more?

I am comparing a couple of motor power battery setups for a 40 size aircraft, where I will be drawing 20 to 40 AMps at 11 to 20 volts. If I use LiPoly's, there is lots of information on the...

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