#1
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Estes Space shuttle 1284 question
Bought a open partially built 1284 off of eBay.
Looks good but had a couple of questions I need help with The lower slip in fin parts are missing. instructions say they are ST78 tubes with cr8 centering rings. Can't find anything that matches that number on semroc or anywhere else. Does anybody know what size will match up? Also, this is my first attempt at a vacuform kit where it is the main assembly with multiple pieces glued to eachmother( much as I love the Star Trek Enterprise it's the main reason I never built the Estes kit. )The orbiter seems a little brittle not surprising considering its age. What is the best glue to use on vacuform? Should I try to do some internal bracing(I know weight is a factor)? And doesn't seem to Ben much surface to glue on.... 🤔Any guidance would be appreciated.
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NAR # 102461 SR I have orbited the earth with John Glenn, walked on the moon with Neil Armstrong, landed on Mars, seen Jupiter and Saturn and explored the realm of deep space all thanks to Model rocketry. God Bless America and The United States Marine Corps |
#2
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Use Tenax 7R plastic welder on the vacuform pieces. Line them up carefully with tape and wick it in along the edges. It forms a solid joint very quickly.
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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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Good to know. I also just got a 1284 off of eBay. I had one as a youth, so I've built it before - but the details escape my memory at this late date.
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Charles McGonegal Ciderwright AEppelTreow Winery & Distillery Ad Astra Tabernamque! |
#4
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Quote:
ST-78 would be an 8" length of Centuri ST-7. I wouldn't be surprised if that's what it is because the Centuri ST-7 was thicker and more robust than the Estes BT-20. Estes and Centuri were owned by the came company when the Shuttle came out and some parts did cross over in the late 70's. The body tube will be Semroc ST-7 and centering ring would be Semroc #7 to #8 based on your numbers. I'm at work so I can't put eyes on mine to check it.
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I love sanding. |
#5
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Quote:
Looks like Tenax is discontinued
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NAR # 102461 SR I have orbited the earth with John Glenn, walked on the moon with Neil Armstrong, landed on Mars, seen Jupiter and Saturn and explored the realm of deep space all thanks to Model rocketry. God Bless America and The United States Marine Corps |
#6
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The Tamiya thin plastic glue is good stuff, as well. Works just like the Tenax, but is available.
Allen Last edited by jetlag : 01-13-2017 at 06:40 AM. |
#7
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Haven't tried "Same Stuff", but it's advertised to be just like Tenax 7R. I've never tried it or ProWeld because I still have about a half bottle of Tenax left.
http://www.micromark.com/same-stuff...fl-oz,9002.html
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I love sanding. |
#8
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"Same Stuff" is the SAME as Tenax 7R and has exact same properties, very fast plastic 'welder' that does not gap-fill at all.
It is much better than the Ambroid Pro-Weld or any of the Plastruct Liquid Cements. It is in the same class as the Tamiya stuff, but much cheaper. Don't even consider the GARBAGE put in a bottle Testor's calls Liquid Cement.
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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 ! |
#9
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So purchased this kit off of eBay as a partially built version.
Somebody had already cut out the orbiter half and misc parts and glued most of the together except the upper and lower sections In addition the have sanded the lower section to a point that actually sanded awa the top,of the Chanel for the attachment lugs ion the center line. Front of lower section does not line up well with the top. What now I had put off this kit because of my lack of experience with vacuform now I remember why.
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NAR # 102461 SR I have orbited the earth with John Glenn, walked on the moon with Neil Armstrong, landed on Mars, seen Jupiter and Saturn and explored the realm of deep space all thanks to Model rocketry. God Bless America and The United States Marine Corps |
#10
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When I couldn't get Tenax, I tried the Plastruct Plastic Weld and I liked it alot. I used it on vacu-form V-2 fins and it worked great. It also worked well on regular plastic when I was rebuilding Sandhawks.
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NAR 79743 NARTrek Silver I miss being SAM 062 Awaiting First Launch: Too numerous to count Finishing: Zooch Saturn V; Alway/Nau BioArcas; Estes Expedition; TLP Standard Repair/Rescue: Cherokee-D (2); Centuri Nike-Smoke; MX-774 On the Bench: 2650; Dream Stage: 1/39.37 R-7 |
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