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  #31  
Old 01-12-2010, 09:54 PM
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sandman sandman is offline
Custom Cone, Kit & Decal Maker
 
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OK, back to the build...

Next up after the tubes are glued on is marking the fin location.

I never had good results with the fin jigs that Estes provided in their kits. I just used them as a marking guide. Pic #1

After the fin locations are marked I used an Estes fin marking guide I drew the lines. Pic #2

Before I glued the fins on the instructions say to add filets where the tubes join. Maybe it's because of the larger fins but I didn't get real pretty filets.

I came up with an easy solution and actually looks pretty good.

I had some triangle stock left over from another project and used it to cover up my ugly filets. Pic #3

That;s my wife acting as my "hand model" for the pictures.
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  #32  
Old 01-13-2010, 12:49 AM
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Gus Gus is offline
7/21/61
 
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Location: North of Detroit
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Quote:
Originally Posted by sandman
... I didn't get real pretty filets.

I came up with an easy solution and actually looks pretty good.

I had some triangle stock left over from another project and used it to cover up my ugly filets.

I originally tried white glue and they looked terrible. Then I used little masking tape dams and 5 minute epoxy and the fillets look great.
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  #33  
Old 01-13-2010, 09:29 AM
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ghrocketman ghrocketman is offline
President, MAYHEM AGITATORS, Inc.
 
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I have switched to epoxy for fillets on ALL rockets.
For LPR I just use a smaller amount.
Fillets always turn out perfectly smooth with ZERO shrinkage.
For LPR it is not so much for strength as it is for smoothness and adds very little weight.
I don't use epoxy for general construction until above "D" power maximum.
Most of my 24mm rockets have "D" power as a minimum though.

That upscale Viper begs for F39T or E28T power to correctly simulate the blue-flame zero smoke of the engines in "turbo" mode.
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  #34  
Old 11-01-2013, 07:34 PM
demarcao demarcao is offline
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Join Date: Jan 2010
Posts: 22
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Does anyone know the parts and dimensions that make up the cannons?
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  #35  
Old 11-01-2013, 07:36 PM
demarcao demarcao is offline
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Sandman hooked me up..


thanks!
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  #36  
Old 11-01-2013, 07:37 PM
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sandman sandman is offline
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Quote:
Originally Posted by demarcao
Does anyone know the parts and dimensions that make up the cannons?


Each gun consists of a 1.5" 3/16" launch lug with a 1/8" (1" exposed) launch lug inside that the a 1/16" wood dowel inside that (1" exposed).
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  #37  
Old 08-21-2021, 04:42 PM
Jack Hydrazine Jack Hydrazine is offline
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Does anyone know the length of the Colonial Viper's PNC-50SV nose cone (not including the shoulder) after nip the tip?
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