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  #71  
Old 07-27-2009, 05:28 PM
stefanj stefanj is offline
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I've built many clones / semroc kits based on old Centuri models.

Many of these have compound double-swept fins. Like the Hustler, or the Centauri.

Sanding the leading and trailing edges of these fins is a real pain. It's really hard to get a good even shape at the V-shaped intersection.

Then it occurred to me, as I started building a Centauri . . . sand the leading and trailing edges of the fins' components BEFORE gluing them together.
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  #72  
Old 07-27-2009, 06:38 PM
snaquin snaquin is offline
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Quote:
Originally Posted by stefanj
I've built many clones / semroc kits based on old Centuri models.

Many of these have compound double-swept fins. Like the Hustler, or the Centauri.

Sanding the leading and trailing edges of these fins is a real pain. It's really hard to get a good even shape at the V-shaped intersection.

Then it occurred to me, as I started building a Centauri . . . sand the leading and trailing edges of the fins' components BEFORE gluing them together.


I agree ..... the Hustler and Lil' Hustler were difficult so I decided to only slightly round all the exposed edges because of the fin shape. The EnerJet Egg Crate had a short flat edge between the leading edge and tip and if I wasn't careful could have easily been sanded too much. I chose to only slightly round all the edges on this model as well to maintain the original look of those fins that has a more square than rounded look in the catalog images.

I have another Semroc Lil' Hustler in the bag and when I build that one I may just leave square fin edges because personally that particular fin shape looks pretty good that way.

Good idea about sanding before gluing them together!




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  #73  
Old 07-27-2009, 11:57 PM
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BEC BEC is offline
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Quote:
Originally Posted by stefanj
Then it occurred to me, as I started building a Centauri . . . sand the leading and trailing edges of the fins' components BEFORE gluing them together.


Which is the way to handle the fins on the Astron Sprite, too. Do most all the shaping before installation.
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