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#1000 by roma847 on 19 Jul, 2016 22:01
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Hello everyone,
fast nor a quick update, the lower support plate was once more modified slightly and now stands vertically,
and then it was glued above the outlet opening.
And then came still the upper support.
That's it for today.
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#1001 by roma847 on 26 Jul, 2016 21:06
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Hello everybody,
but first times still an addendum to the current state of the first two 18'' outlets with the support plates.
And for the flattening of the outlet openings on the two other outlets I have my method still slightly modified.
The opening can in fact even be better formed when one first uses a balsa rod which is flattened out gradually during heating,
after which I've used one of the new opening adapted core.
And this gives a nearly perfectly shaped opening.
Because of the different running lower curvature of these two outlets I had to remodel my Balsa clamp jig laterally reversed for adapting the lower support plates.
Thanks for watching.
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#1002 by roma847 on 26 Jul, 2016 21:26
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Hi folks,
here is still a question to the expert round, what do you think wherefore these screwings are good for, which are located at all outlets (6'' - 9'' - 12'' - 18'') of the SSWS?
Source: NASA
Of which there are a total of 18 pieces,
if I've counted correctly, although here some are covered.
Source: NASA
Are these possibly vent openings or inspection ports?
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#1003 by roma847 on 27 Jul, 2016 16:27
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What's going on folks, no ideas or no fancy, or both?
I think, that vents shall probably not come into consideration, because the SSWS pipes are only during the launch under pressure. The rest of the time the entire system is open, from the two 36'' feed pipes in the SRB exhaust holes
Source: NASA
to all outlet openings of the two ring lines.
Source: NASA
I rather think that these openings are probably some sort of inspection ports for access for Mini Cameras periodically to check the pipes for cracks and wear. Because at these pipe-bends the stress as well as the wear of the pipes are greatest, this makes most sense to me.
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#1004 by roma847 on 27 Jul, 2016 17:46
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Hello everybody,
be that as it may, I've tried to scratch these nipples.
As already indicated, the nipples are relatively small in my scale (1:160), only about 0.4 mm/0.2 mm in diameter and about 0.4 mm high.
Source: NASA
If one would be pretty exactly, one might poke a brass rod Ø 0,2 mm into a brass tube Ø 0,4 mm with 0.09 mm wall thickness, as one can see here.
But the tiny "screw" on the right side is hardly to be seen still.
This couple one could now stuck into a 0.4 mm through-hole, but this effort is not worthwhile.
Therefore, I would be satisfied with a Styrene variant, whereto I have drilled out my dummy outlet
and glued a short stub Styrene Ø 0.4 mm.
And this stub I've then reduced to approx. 0.4 mm in height.
And since this result seems perfectly adequate, I will probably stick with it.
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#1005 by Ronpur50 on 28 Jul, 2016 02:21
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Oh, wow, I thought for sure you would have made the bolt removable! But you are right, it looks perfect, and once painted, it will be amazing!
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#1006 by roma847 on 28 Jul, 2016 14:48
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Thanks Ron,
imagine, I've dreamed about it, but I could not decide me whether left- or right-hand thread is better.
Joke aside, but a little bit of fun is always good.
Nevertheless, I'll stay with the Styrene solution, these stubs are perfectly acceptable for the optics.
These macro pics have been photographed from a distance of few centimeters, already if one is 20 cm away, one cannot detect whether there is a screw at the top or not.
Therefore, once it's painted and the pipes are installed on the MLP it will look just fine. The screws are so small at the 1:160 scale that the 0.4 mm rods I am using look correct, and that's really enough.
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#1007 by SWGlassPit on 28 Jul, 2016 15:10
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The screws are so small at the 1:160 scale that the 0.4 mm rods I am using look correct, and that's really enough.
I would not be surprised at that scale for the thickness of the paint layer to become important relative to details of that size. -
#1008 by roma847 on 28 Jul, 2016 15:28
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That's true, but the layer is minimal and the size relations among each other are retained.
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#1009 by roma847 on 28 Jul, 2016 15:29
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Hello everybody,
finally the last two 18'' outlets without rejuvenation also have received their support plates.
Then I have shortly pre-drilled the upper bows with Ø 0.5 mm, inserted rods (Ø 0.45 mm) for the nipples and glued them with MEK,
which then were cut and carefully sanded down to 0.4 mm height.
And then there were also still the six 18'' outlets with rejuvenation which I had almost forgotten.
Therefore the same procedure all over again on these bows.
Now missing only the nipples of the two front 12'' outlets, which previously still have to get their outlet openings with baffles.
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#1010 by Davp99 on 28 Jul, 2016 20:30
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Maybe for gauges and then removed ? and could be for venting like you mentioned..
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#1011 by roma847 on 30 Jul, 2016 05:51
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Hi there,
Today I want already times to have a look ahead how it goes on shortly.
There are still these two 9'' outlets (Ø 1.4 mm), which branch off before the 12'' outlet from the 24'' ring line, then run through below the SRB Blast Shields,
Source: NASA
and feed the line with the outlet nozzles on the rear wall of the SSME exhaust chamber,
Source: NASA
which I have completed for some time, as well as the tricky Firex line.
And at the other end of the 24'' ring lines it goes on behind the TSM's with the 16'' rejuvenations (Ø 2.5 mm) which are tapering one more time to 11'' (Ø 1,8 mm) after the first bending,
Source: NASA
and end in the SSME chamber in these pipes stocked with eight outlet nozzles.
Source: NASA
In order to continue with these details, I had to make measurements and scalings again.
And as it looks like, it will be probably again pretty tricky, I guess.
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#1012 by roma847 on 01 Aug, 2016 12:29
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Hello everybody,
here still a small addendum to two outlets that are missing yet, these are namely those four 6'' outlets (Ø 1 mm) here, which although were to be seen already, but have not yet been regarded.
Source: NASA
These transitions branch off from the ring lines, run under the SRB Blast Shields, and reappear between the front SRB Supports, whose ends with the outlet openings also already exist.
And the two 24'' ring lines are fed in through these two 36'' inlet pipes in the corners of the SRB-wells that were already shown also.
Here is the upper confluence into the ring line,
Source: NASA
and here the lower end with the coupling elements,
Source: Troy McClellan
which must not be missing.
And in order that during the further adaptation and assembly of various outlets everything goes well and the ring lines cannot shift constantly themselves, I have precautionally carved even more mounting aids.
These mounting aids are then certainly also indispensable during subsequent assembly of so many pipe supports.
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#1013 by roma847 on 07 Aug, 2016 11:36
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Hello everyone,
initially I still want to show the two 12'' outlets, which now have got their outlet openings and baffles as well as the nipples.
And after that it initially went on with the 9'' transitions (Ø 1,4 mm) of the 24'' ring lines (Ø 4 mm), standing on a tall support pillar.
Source: NASA
What on the pictures firstly looks really practical and invites for scratching, then pretty shrinks on the 1:1 Sketch again.
After determining of the dimensions of the components began the search for suitable profiles. For the pillar Evergreen rods are suitable with Ø 1 mm (bottom) and 1,4 mm for the upper sleeve, on which a flat 2 mm U-profile sits and on this a small "Sickle". Of the width for the U-profile a corresponding Evergreen channel would be suitable, but is unfortunately too thick for this filigree support and the sides with 1 mm too high.
That's why I preferred to bite the bullet and have scratched the profile of 0.15 mm Styrene. For the sides I have sanded down an Evergreen strip 0.25 mm x 0.5 mm to 0.15 mm and then glued with MEK. 
And the difference is clearly visible, as one can see here.
Then bending was indicated again, this time with the 1.4 mm rod,
what agrees very well with the sketch. 
After that I've drilled a hole with 1.4 mm in the front inner corner of the SRB Blast Shields, and made a test that was okay instantly.
And that also fits well with the underlying 12'' outlet.
Now is still missing the support pillar, which I'll make tomorrow.
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#1014 by roma847 on 09 Aug, 2016 23:04
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Hello again,
but initially the 9'' outlet still received a few small details.
At the feedpoint of the 24'' ring line is a small thickening to see, for what I have punched a small Styrene disc (0.5 mm) with Ø 1.6mm, which has already been glued, as can be seen in the following figure.
Due to the small diameter of the outlet of 1.4 mm also the diameter of the nipple is correspondingly smaller with only 0.3 mm, for what only a tiny hole were to drill,
into which my thinnest rod with Ø 0,3 mm was glued. Next to it is a lead wire with a diameter of 0.3 mm, which I will use for the clamping ring on the other end.
The lead wire I have glued with CA.
And so the final outlet looks, from which I still need a second copy.
And now to the slender support pillar, which stands under this outlet and consists of six parts,
Source: NASA
which I have already prepared and are all quite tiny,
which must be glued together now.
And I can tell you, the mounting should become a tricky matter due to the minimal contact surfaces.
Since I glued these things with normal Revell glue for possible corrections, one can not continue, but must wait until hardening.
And the height of the support I should also check from time to time, since it should not exceed 9 mm in order to fit even under the outlet.
And for that reason alone every now and then a break is necessary, like now, why the base plate and the top plate have to wait.
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#1015 by roma847 on 10 Aug, 2016 12:10
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Hello everybody,
and here is the next update.
Since I still wanted to check the total height of the support pillar, I have not initially sanded the tiny rounding in the upper pipe holder, especially since it is anyway only 1 mm x 1 mm "big".
The problem with this prototype is, that the height of the components should be exact as possible on the tenth of a millimeter, if in the end should be reached the calculated required total height of 9 mm, so that the support fits under the transition.
Subsequently, the support was positioned on the base plate and glued,
and then vertically aligned on all sides vertically.
And so the filigree structure looks, which is very fragile and wherefore the further handling is to enjoy with caution.
With the optical look of the support I am already very satisfied, although actually still missing these two screwings,
Source: NASA
which I wanted to try at least times. In my estimation, one could scratch it by thin rods, which would, however, which would be again in the boundary region of the nipples with Ø 0,3 mm.
That would be even doable, although this strip (0.37 mm x 1.5 mm) is slightly wider than the only 1 mm wide plate under the pipe holder,
and through the shadows it could be seen even better in the painted state, questionable would be, however, from what distance ...
But more important is the question whether and how the support would fit at all.
And to my surprise, it fits already together relatively well,
although the left side of the pipe hangs a bit in the air, as can be seen more clearly in this close-up.
But this should be still compensable if I sand even a tinier rounding in the tiny pipe holder (1 mm x 1 mm) and it plays along.
Although this support was quite tricky, this looks but overall very well.
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#1016 by roma847 on 10 Aug, 2016 22:10
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Hi there,
making of the tiny rounding was not a problem, especially since only a hint of 0,15 mm was necessary.
And here is the result,
and because the transition now sits a little bit lower, so far everything is okay. 
Therefore, the rounding of the second pipe holder will be made before assembly.
Now it was the turn of the second 9'' transition, which first had to be bent again.
Although the processes are now already familiar, the difficulty lies in getting the transitions as identical as possible.
These are the individual parts for it, apart from the two rods for the support.
After the filigree U-shaped substructure was scratched, it was time for the difficult assembly of the parts, which was again quite stressful.
And with that the couple was complete,
and could be tried on on the MLP.
Although the provisional attachment of the outlets with Pattex is also a tiresome game of patience and does not last long, 
the impressive overall impression is worth the effort, which is why I brought back the Rainbirds again.
That's it for today.
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#1017 by roma847 on 11 Aug, 2016 07:39
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Thanks Ron and Doug for looking in on me.
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#1018 by the_other_Doug on 11 Aug, 2016 15:26
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Thanks Ron and Doug for looking in on me.
No problem -- like I say, I always look to see if you've posted updates, and follow them with great interest.
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#1019 by roma847 on 11 Aug, 2016 21:58
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Thanks for watching Doug, you are one of my faithful souls.
