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Apogee Rocketry Workshop #283:

How to Cut Out Fins From A Template

Advanced Construction VideoThe nice thing about plans that have a fin template where all the fins are pre-arranged for placement on a piece of wood is that it saves you a lot of time. You don't have to spend the time trying to orient each fin with the grain of the wood. And if the template was arranged correctly, it minimizes the amount of wood that you use up, so it saves you money by using less wood. But how do you transfer the template to the wood? That is what is shown in this video.

There are two methods that I typically use for putting the templates on the wood sheet. The first way is with "repositionable" spray adhesive. It is a low-tack rubbery material that can easily be removed when the fin has been cut out. I've used 3M Spray Mount, and Elmer's brand. You can also use rubber cement. The second way is with paper that is glued directly to the wood with white or wood glue. In this case, the paper will be permanently bonded to the wood. So you also have to put a second sheet of paper on the back-side of the wood. Do both at the same time to prevent the wood from warping. The paper skins add stiffness to the wood and help prevent splitting of the wood along the grain. They also give the surface a smooth appearance, so there is less effort in finishing the wood. But if you want rounded edges, you'll end up sanding through the paper (which is totally fine to do). Have some fun and experiment to find a technique that works well for you.

Note: The free plans that are talked about in this video will be released next week. Since you are already a subscriber, you don't need to re-subscribe to get the plans. We'll have a link to them for you in next weeks email announcing our newsletter.

View this week's Rocketry Workshop Video (Duration: 8:25)

Previous videos are found on our archive page.

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Newest Products From Apogee Components

Check out the latest products to hit Apogee's shelves!

Semroc Taurus

Semroc TaurusThe Semroc Taurus is an updated version of the classic Centuri kit that first appeared in 1972. It was advertised as an Alien Planetary Cruiser. It has all the classic components of a throw-back rocket kit, like a four balsa wood nose cones, two balsa transtion sections, a lot of tubes, water-slide decals, and a lot of body tubes. If you paint it up in the Taurian Admiralty's fleet colors, this is an attractive model that will gather a lot of attention at your next launch. It should be released by Friday of this week! 

Semroc USS America

Semroc USS AmericaWhat a way to celebrate Independance Day than with the launch of the USS America. This reproduction of the Centuri model rocket from 1976 is sure to be a successful highlight at your next launch. With two side pods and simulated jet engines slung beneath the wings, the model is as distinctive as it is powerful. Flies on 24mm diameter D, E and F size model rocket motors.

Semroc Blue Jay

Semroc Blue JayThe Semroc Blue Jay is a delta-shaped joined-wing glider. Its shape allows for easy assembly like a jigsaw puzzle, and for a nice easy glide without a lot of fussing around during the trimming process. The motor pod detaches from the glider at burnout, and is recovered by a long streamer.

36" Helicopter Parachute

Procast Castable Igniter DipThis is totally new and so unique, we guarantee you've never seen it before. Based on the Apogee Peak-of-Flight Newsletter article by Dave Flanagan, this parachute is designed to spin as it comes down. It is twice as efficient as a normal parachute with the same surface area, and it also doesn't sway as it descends. It's made from nylon cloth, and is perfect for mid-power rocket. Plus there are so many other advantages, that you definitely have to check it out. You absolutely must be the first to own one and show it off at your next launch.

 

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