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Building Tips and technical articles. => Building techniques => Topic started by: Dwayne Donnelly on January 28, 2022, 07:54:52 PM

Title: Carbon Gear, well I'll be
Post by: Dwayne Donnelly on January 28, 2022, 07:54:52 PM

I couldn't save the mold this time but I'll be darned I just made my first carbon gear, still needs a bunch of trim/sanding but I can't believe how good it turned out, if I can do this anyone can.  y1 #^
One sliver though   ''

Title: Re: Carbon Gear, well I'll be
Post by: Dwayne Donnelly on January 29, 2022, 07:03:14 AM

And the test fit before final sanding and clear coat.  y1 #^

Title: Re: Carbon Gear, well I'll be
Post by: Dennis Toth on January 29, 2022, 12:14:47 PM

Doug,
Really nice work. What resin did you use? I think if you made the mold from pine and finished it with epoxy it will hold up for several sets. You could even use Bondo mixed with about 30% polyester resin and it will hold up for several sets (I did props like this for quick cheap mold).

Best,     DennisT

Title: Re: Carbon Gear, well I'll be
Post by: john e. holliday on January 29, 2022, 02:50:22 PM

Why not use parchment paper on the mold?   The gear looks good. D>K

Title: Re: Carbon Gear, well I'll be
Post by: Dwayne Donnelly on January 29, 2022, 04:14:57 PM

Thanks guys, Doug I'm using Z-Poxy finishing resin, I will be making one more set for another plane with no plans to make anymore so I don't think it's worth the effort but I will keep it in mind if I decide to make more.
John. Never thought of parchment, I'll give it a try.

Title: Re: Carbon Gear, well I'll be
Post by: Dennis Toth on January 29, 2022, 04:57:32 PM

Dwayne,
Let us know how the Z-Poxy holds up. That is a easy to get resin and not as toxic as the EPON.

Best,   DennisT