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#1
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Estes BNC-55AC/PNC-55AC Nose Cone (Cherokee-D/E)
I have designed a copy of the BNC-55AC and PNC-55AC nose cones that the Estes Arcas (kit #K-26 or #1226), Estes Cherokee-D (kit# K-47 or #1247), and Estes Cherokee-E (kit #2408) model rocket kits uses that you can download for free from Thingiverse and print. Enjoy!
https://www.thingiverse.com/thing:3988427 |
#2
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Nice! Thanks!
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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 |
#3
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Thanks! I am working on printing one tonight!
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Bruce S. Levison, NAR #69055 |
#4
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Let me know what you think of it after it is printed.
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#5
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Good for cloning these:
1247 Cherokee D 1270 Nike-X 1290 Sky Raider 1302 CC Express 1360 Tartar 1924 Defender 1972 Bullpup 12D 2149 SM-3 Seahawk 2151 Big Dawg 2153 AIM-120 AMRAAM 2184 Meteor Masher 7000 Bullpup 12D |
#6
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I believe the "Sea Strike D" two stager used that cone also.
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When in doubt, WHACK the GAS and DITCH the brake !!! Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't ! Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY. ALL systems are GO for MAYHEM, CHAOS, and HAVOC ! |
#7
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Quote:
I printed the PNC-55AC nose cone and cap using 4 thickness (0.12mm each) of ABS at 0.2mm layer height and it came out great, see attached picture of the 3D print next to my 40+ year old Cherokee D. The cap fits nicely into the nose cone shoulder and is a perfect fit for gluing and use of a screw eye (I used 6 top layers for the prints). The cone fits nicely into BT-55 tubing, it might need a little tape shimming before flight. I printed the file as is and the outer dimension of the cone measures 1.31 inches as per the caliper I bought from Harbor Freight. I typically increase the size of my prints by 1% to compensate for the shrinkage of ABS plastic but did not do that for these prints.
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Bruce S. Levison, NAR #69055 |
#8
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Looks awesome! How did the cap fit?
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