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Old 05-20-2019, 07:21 PM
timorley's Avatar
timorley timorley is offline
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Join Date: Jan 2007
Location: Bright, Indiana
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Default Saturn 1b 1:156 Scale 3d Printed

Besides the Pershing 1A, I have another 3D printed rocket project underway, a Saturn 1B. The main body is constructed around a BT-60 sized body tube. The scale will be about 1:156. The 3D files were created by scottdee (who frequents YORF as scott_mills) and I downloaded them from https://www.thingiverse.com/thing:2958861. I upscaled the fin unit to 103% so the inside diameter matched the inside diameter of a BT-60. By chance, 8 BT-4 Semroc tubes from eRockets seem to fit perfectly inside the BT-60 and the fin can now that I slightly upscaled it. Unfortunately a BT-20 for the engine mount is a tiny bit too big to fit inside the BT-4s without deforming them, but no worries, I'll trim a tiny bit out of the BT-4s the length of the engine mount. Unfortunately the vendor shipped the wrong length of BT-4s, they made it right with no hassle, as soon as the replacement tubes arrive I can start assembly this coming weekend, along with starting to assemble the Pershing too!
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"You know, it, uh, won't fly unless somebody pushes the button." From the movie October Sky.

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Last edited by timorley : 05-20-2019 at 09:37 PM.
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Old 05-20-2019, 07:27 PM
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timorley timorley is offline
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And while the BT-4s I got were too short, they were long enough for me to verify BT-4s will work just fine for the 8 tanks.
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Tim

"You know, it, uh, won't fly unless somebody pushes the button." From the movie October Sky.

I am SAM # 0167
NAR 98303 Southwestern Ohio Rocketry Association (SORA) #624
https://www.rocketryohio.com
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  #3  
Old 05-21-2019, 02:27 PM
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Earl Earl is offline
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That's an interesting scale size for a 1b. That would be good for demos in small fields.

If you can, post photos of the Pershing and this 1b as you go along on your build.


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  #4  
Old 05-22-2019, 11:29 PM
scott_mills scott_mills is offline
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Nice can't wait to see it finished
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Old 06-03-2019, 07:43 PM
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timorley timorley is offline
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The replacement BT-4 body tubes arrived today. Dang Post Office, I fear the worst......
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Tim

"You know, it, uh, won't fly unless somebody pushes the button." From the movie October Sky.

I am SAM # 0167
NAR 98303 Southwestern Ohio Rocketry Association (SORA) #624
https://www.rocketryohio.com
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  #6  
Old 06-03-2019, 07:48 PM
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timorley timorley is offline
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Miracles of miracles, nothing was crushed. The top of the box was crushed, but the tubes were in the bottom, safe and sound.
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Tim

"You know, it, uh, won't fly unless somebody pushes the button." From the movie October Sky.

I am SAM # 0167
NAR 98303 Southwestern Ohio Rocketry Association (SORA) #624
https://www.rocketryohio.com
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