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#11
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ten at once, never again
As John said, we had a few paint, problems. With the 'black' tubes already painted, it made a difference where one set the wrap line. And murphy got us big time, we thought we had four boosters with the wrong reference, but we actually have six that are wrong. 50/50 and an extra one butter side down. But we are well on the way to recovery. Two of the 'black-2-white' rounds went home with someone else to feather the black edges. (we were super efficient and had already masked the USA rectangle, now that has to be undone also) And we are finding that all the detail parts need special edge treatment. So all will be back to white real-soon-now and we can continue with the black this week and weekend.
Eight of our ten rounds, (2 in-work off premmesis) with John's 'Boilerplate' round on right, and Bill's 'originial' unit built 'many' years ago. |
#12
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FIVE weekends? Wow - either you guys got a head start or we got a late start. This upcoming weekend is only our third, not to mention I am out of town for this weekend.
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Jeff Taylor MASA Section 576 NAR 87148 L1 SAM 160 |
#13
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John why would you not paint the tubes black if you started over ? This worked well for me on the second model I built. Just curious what you and others have to say.
I am still juggling the idea of painting the fins prior to attachment. Guess I gotta get rolling here soon, the deadline is coming. Jim |
#14
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If I remember correctly, the Estes instructions actually told you to paint the tubes before assembly. We've run into so much trouble (times 10) with the prepainted tubes, that I'd rather fuss with more masking tape, but thats my preference. John |
#15
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Well, base white coat still tacky today. Cold front coming in tonight. Sure hope I don't have a humidity issue when it's time to apply the black paint.........
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Don NAR 53455 "Carpe Diem" |
#16
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Do you have a room that is warm that you can put the model into, or is it still outgassing to much? John |
#17
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I'm keeping it in my bedroom. The AC should help keep the humidity down and with the ceiling fan going, I was hoping it would speed the curing time. I'm going to try the black on one of the fins tomorrow and see what happens. One fin to fix is easier than the entire model.
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Don NAR 53455 "Carpe Diem" |
#18
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That's why you guys (and gals) can see my Centuri 1/100 scale Saturn 1-B in the background of my pic. I've been using it for reference (along with other sources) as I'm putting this big thing together. I think it's better to paint the fuel tubes prior to assembly, you just have to pay attention where the Pos. I, II, III & IIII locations are as far as the fins and body wraps. Where Pos. I is, I drew a very light, straight line with a pencil so all of my wraps will start on one side and end on the other. There is a way to mask off those fuel tubes so the rest of the model can get that all important base white coat. That's it for now, I'll be back later this evening with more (my kid needs/wants to get on the computer now.... )
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Dave, NAR # 21853 SR. |
#19
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I'm just entering the tunnel now...
I decided to prepaint the tank tubes before gluing them on. Sounds like something that should have been simple, doesn't it? Unfortunately, I keep running into unexpected snags. (For one thing, it's hard to spray paint in the rain! ) That recoat time of New Krylon is starting to impact my timeline, as well. Missing 5 days of build time while I was away from home at a conference didn't help, either. I'm really, really counting on everything else going together without a hitch. And it will probably work out that way, too, right? Right? Mark \\.
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Mark S. Kulka NAR #86134 L1,_ASTRE #471_Adirondack Mountains, NY
Opinions Unfettered by Logic • Advice Unsullied by Erudition • Rocketry Without Pity
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#20
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Jim: I've tried each way on the Semroc, and while it's definitely a matter of peronal preference, I lean towards attaching first, painting/masking later. Pre-painting the fins is definitely easier on the painting of both the fins and the shroud, but I still had very slight alignment issues where the white/black borders on the fins might not exactly match same on the fin can despite measuring what I felt was very carefully. More of a factor to me, though, was the fillets. I went with a very subtle (applied with a .5mm syringe) white glue fillet that dried clear, and it just didn't look as sharp as a fillet that had been painted over. I touched 'em up by hand, but my brus is nowhere near as pretty as my airbrush. YMMV... |
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