#1
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Glue for 3D printed parts
What is a good glue to use to attach 3D printed fins to cardboard body tubing?
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#2
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CA or Epoxy.
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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 ! |
#3
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I use medium CA.
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Paul If we weren't all crazy, we would go insane - Jimmy Buffett NAR #87246 www.wooshrocketry.org |
#4
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Do you still fillet joints with 3d printed parts, and if so, with what (epoxy again?)
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#5
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Quote:
Use epoxy for fillets, not CA. You can get a much smoother , more even fillets with epoxy.
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Buzz McD. Avid rocketeer since 1967. NAR 13559 / L2 |
#6
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CA or epoxy. I’ve yet to find a nuclear option that will “weld” 3D printed parts, but I’m still looking.
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Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
#7
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It isn't cheap at $13 for 5 oz, but I've had great results using SCIGRIP 16 for gluing PETG prints together:
https://www.amazon.com/SCIGRIP-1031...-Cement-Low-VOC
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Let us create vessels and sails adapted to the heavenly ether, and there will be those who will not shrink from even that vast expanse. - Kepler to Galileo in 1610 NAR 86500 Level 2 |
#8
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Beacon Fabri-Tac or BSI Plastic-Cure (a CA formulated for plastic and wood).
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Rick Randol NAR #28062, ROCI Section #625 http://www.newwayspacemodels.com http://www.indyrockets.org NewWay Space Models-We Cornered Model Rocketry |
#9
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Over at Adafruit, they have a video on 6 different methods to join 3D printed parts. In the end, they found that "3D Gloop" worked best. As always, YMMV.
https://blog.adafruit.com/2022/04/2...parts-together/
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Web Site and Blog https://rocketryjournal.wordpress.com YouTube Channel https://www.youtube.com/@AustinAerospace 3D Printing Designs https://www.thingiverse.com/austin_aerospace_education Software https://sourceforge.net/u/austinaerospace/profile |
#10
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Talk about timing! I just received 3D printed fins for my very old Maxi Honest John. My first order from Boyce Aerospace. Very nice! My Maxi HoJo never flew. I shredded the vacuformed fins off of it with a rasp about 25 years ago.
I decided to use epoxy. I did a bit of sanding along the root edge, just to make sure the fit was good. I used 5 minute epoxy, since I wanted a fast bond. The bond was very solid on all fins 24 hours later. I heated one fin a bit with heat gun to soften it enough to straighten it a tiny bit to get it perpendicular to the plastic fin can. Today I started applying fillets. I used 30 minute epoxy since I prefer it for bond strength, plus it has time to flow out before setting up. I always add a few drops of DNA for fillets to thin it so it flows well. I like minimal fillets — enough to flow into the joint and also level out a bit. I will likely just use filler-primer to eliminate the minute texture, rather than trying to sand them perfectly smooth. I did this on Launch Lab Rocketry’s Bullitt Bobby 3D- printed nose cone.
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Lee Reep NAR 55948 Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor In the Paint Shop: Nothing! Too cold! Launch-Ready: Farside-X, Maxi Honest John, Super Scamp |
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