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roma847

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About roma847

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  1. Hello everybody, and after the end piece of the GO2 Press. Line now to the end piece of the GH2 Press. Line, which directly lies next to it and after two bendings runs slantwise upwards in the direction of Crossbeam, as one can see on this image. Source: NASA With this line I want to proceed the same as with the GO2 Press. Line and initially only bend its end piece from the last Ice Frost Ramp (R24) to the TPS cladding under the Crossbeam, because the continuation of the line on the LH2 Tank until the Fairing on the Intertank should also be installed separately. In the following image I have used a Steel rod (Ø 0,4mm) for the GH2 Press. Line and threaded it into the back three Resin ramps from the Newware Kit (NW 131). And already as forward look and for the sake of completeness, in the following image are to see the 17 Ice Frost Ramps on the LH2 Tank , whereby the Ramps 1-14 (R23) are "Double"-Ramps (see previous photo). Source: NASA The connection point of this line piece at the TPS cladding under the Crossbeam can be seen in the following photos. Source: NASA Source: forum.nasaspaceflight.com (Jester) In this photo one can see in the zoom that in front of the Fitting in front of the TPS cladding also still a small Support is sitting. Source: forum.nasaspaceflight.com (DDG40) And that is this point here on the model, which has unfortunately proved to be too low with detailed review and measurement of the gap to the LO2 Feedline Bracket, which is why I had to shorten the TPS cladding very carefully a little bit with a razor blade to create the required space for the little Support. And these are the required separates. The small Support I've cut off from the rest of the TPS cladding, in front of it lies the tiny Fitting made of Insulating hose, and in front of them the Cu dummy for the end piece of the Press. Line (Ø 0,4 mm). And the test fitting of the Press. Line looks already rather well. But with that I was again faced with the same problem of threading the tiny Fitting in the space of this gap ... But meanwhile I have some practice with it, and that's why I have prepared this time again a small Toothpick-Tape holder, as at that time in a similar action at the SSWS on the MLP, at its top of which this time the Fitting hung. The threading was again a similarly stressful and shaky matter with held breath as at the GO2 Press. Line, but ultimately I was successfully again, as one can see. Now I can put the Attachment back onto the ET and determine the length of the Press. Line up to the lower two bendings in front of the rear Ice Ramp (R24), which can then be bent.
  2. Thanks Kirk, no problem, because I've found a steel wire (Ø 0,4 mm), which I can use unpainted for both Press. Lines. Source: NASA Here one can see the comparison between Nickel siver and Steel. These are the two Ramps (R24) at the end of the GH2 Press. Line, before it runs up to the Crossbeam. Afterwards these 14 Ramps (R23) follow til the Intertank, in those both Press. Lines are running. And here one can see the real Press. lines and the LH2 Cable Tray. Source: NASA I think I can live with that.
  3. Thanks Kirk for your nice response. Actually, I didn't want paint the two Press. Lines and leave them unpainted, even though the Nickel silver does not look quite like steel but a bit yellowish. Otherwise, I would have to airbrush the lines before installing iron-colored. What would you suggest?
  4. Hello friends, what's going on, really no idea? ... Posting is silver, silence is gold ... At first, I've imagined of cutting open the tiny ring with the cutter, and then slipping it like a clip over the installed wire at its place close underneath the Umbilical Plate and to glue there. But the ring is really damn small, approx. Ø 0,7 mm x 0,5 mm, and can hardly be held with the sharpest tweezer. But then I've thought about the following bold solution. My previous skepticism regarding the threading of the ring on the Press. Line was based on my up to now realized Mounting perspective. But then I came up with the idea to simply reverse the perspective and turn the Attachment upside down. With that, the Umbilical plate lays below, and the ring would not fall down immediately, if one handle it carefully enough to place it over the opening. And that's exactly what I did. First, I threaded the two lower rings in front of and behind the bend, and then introduced the line from above through the Bracket. Then I threaded the upper ring onto a very thin Insect needle (Ø 0,25 mm) and inserted it next to the Bracket into the opening of the Plate. Then I carefully pushed the ring with the cutter tip to the plate and pulled out the needle very slowly, so that the ring came to lie directly on the opening. And then I held my breath and gently inserted the slightly sharpened line with the tweezer through the ring into the opening until the point under the plate appeared, with which my stunt was indeed successful. And this is how the Attachment on the ET looks from both sides. Now the Press. line can still be aligned a bit and glued in this position in the Umbilical plate and with the Bracket, whereby it would then finally fixed.
  5. Hello friends, today I have bent the end piece of the GO2 Press. Line made of Nickel silver (Ø 0,4 mm). But as one can see, while bending the wire in the tweezers too sharp bends arise in comparison to the copper wire, which is much more flexible (ductile), what I did not particularly like. That's why I've used my round-nose pliers, and lo and behold, then therewith gentler curves succeed, just as one can see it on this photo. Source: NASA Then the test fitting on the Umbilical came, which was expectedly tricky, because I had to thread the longer upper part of the wire first from below through the narrow Bracket and then had to insert it into the opening of the Umbilical plate. Then I also still managed to insert the shorter piece in the rearmost Ramp (R25), in front of which the long GO2 Press. Line had been inserted. Then I've also still cut the tiny Fittings from the thin Insulating hose (Ø 0,7 mm) in a known manner, and have subsequently threaded the Press. Line, wherewith I am very satisfied for now. But now the exciting question arises, how I should install this ringed end piece now best, since the upper ring cannot pass the narrow bracket? Consequently, the ring must be removed before threading the wire in the holder and then re-fit without breaking off anything around. But how can one does it for heaven's sake in this cramped space, especially since the normal threading is already absolutely stressful, and one has to take care hell-bent, that the tiny midget does not jump? Therefore good advice is expensive, but maybe someone of you has a good idea that would help me? In this sense, volunteers please step forward!
  6. You seem to be a same perfectionist like me too. Keep up your great Saturn V.
  7. Hello everybody, so then to bending and installation of the end piece of the GO2 Press. Line. First of all, it is necessary to know the preliminary end point of this gas line in order to be able to start bending, but this time it is relatively easy, since behind the last Ice Frost Ramp from the Newware Kit (R25) there are only two bends in the pipe. Source: forum.nasaspaceflight.com (Jester) That's why I've used again my often shown ingenious Reference drawing from the recommendable ET Bible (System Definition Handbook SLWT - Lockheed Martin), from which one can take the exact location of the GO2 Press. Line (light blue) and of the GH2 Press. Line (red) direct next to the LO2 Feedline (dark blue). Source: System Definition Handbook SLWT, Vol. II (Lockheed Martin) And these three angles I've drawn into a 1:144 drawing of the ET cross section, and layed one of the 14 following Ramps (R23), in which both Press. Lines run up to the Intertank. In this image, in front of it lays the last Ramp (R25), whose position next to the feedline is crucial for bending the GO2 Press. Line. In order to determine their position as accurately as possible and to be able to transfer to the ET circumference, I have marked corresponding markings for all three lines on a Masking tape (1 mm). This tape I've glued onto the ET and then threaded a short piece of the Press. Line (Nickel silver Ø 0,4 mm) through the Umbilical plate and the Bracket , as well as provisionally layed a longer piece of the line onto the tank. In order to be able to determine the distances of the lines from each other as well as from the last ramp as exactly as possible, I have threaded the Ramp R25, as well as four Ramps R23 to the front, and have fixed the line in this position with tape. Afterwards the distance of both lines is approx. 2 mm, which agrees well with the distance determined from photos, with which I could actually bend the short piece of the line. But to relax the eyes stressed out by the macro shots is here a look from the normal viewer's perspective. And since I was curious, I immediately made a first test-bending with a Copper dummy (Ø 0,4 mm), and as one can see here, the result looks already quite useful. Similarly, I'll now next bend the same line piece of Nickel silver (Ø 0,4 mm) and then also attach the three Fittings made of insulating tube, wherewith then the LO2 Umbilical would have been finished.
  8. Keep cool, Koshey, and don't worry. Suck it and see! And above all, not giving up so fast, if something fails to accomplish.
  9. Hello friends, then I'll continue with my pull-ups on the LO2 Umbilical. But before I'll bend the end piece of the GO2 Press. Line, at first still to a last detail, which I wanted to leave out first, because I did not think it was that important. And that's this Bracket for guiding/stabilizing the Press. Line, which is mostly hidden on the photos and not completely visible, Source: forum.nasaspaceflight.com (DaveS) which is why I had to feel my way step by step, i.e. image by image. In this photo one can see the oblique position on the inside of the Cable Tray, but otherwise one is groping in the dark. Source: NASA Here one can see already in more detail that these are two thin narrow struts, which are connected at both ends, Source: forum.nasaspaceflight.com (Jester) what one can also see in this picture, from which I have determined the necessary dimensions. Source: NASA On my first try, I glued Evergreen Strips (0,25 mm x 0,75 mm x 5 mm) together, using Strips (0,25 mm x 0,4 mm) as a spacer. But since the spacing for the Press. Line-Nickel silver rod (Ø 0,4 mm) seemed to be a bit too small, I've adjusted it for the second try by gluing Strips (0,25 mm x 0,5 mm), what comes already closer to the real conditions and looks better. When test fitting the bracket, however, it turned out that it was a bit too long, since it should end at the height of the upper ring on the Feedline. that's why I've shortened it by one strip width (0,5 mm), which looks more pleasing, and above all fits better into the mould, and thus could be glued in this position by means of MEK. With that I can now bend the end piece of the GO2 Press. Line and its three Fittings, what should be a bit simpler than at the GH2 Press. Line on the other side, I hope at least.
  10. Hi Jörgen, I admire your skill and especially your attention to detail, which you can fully live out on this scale. Keep up with this great work, I stay tuned.
  11. Hello friends, after the bow has fitted quite well, I then glued it under the center support with the front slant and aligned immediately. When trying on the upper assembly group Parts (4-6), I unfortunately had to realize that this was a bit too high and did not fit into the gap. Therefore, the upper disc had to be removed again and the slant slightly shortened. After gluing a new disc, the group was then glued into the gap and also aligned. Now I'm jolly glad that I also managed this tricky LO2 Umbilical, and am amazed that it come off quite well, as I think. And since it is quite similar to the original, the considerable effort was well worth it. Next, as already announced, I will now bend and adjust the end fitting of the GO2 Press. Line.
  12. Hello everybody, in the meantime I have completed the remaining CT Parts (Parts 4-6) and glued the lateral edge onto the Slant (Part 3.4), that is made from Evergreen Sheet Styrene (0,13 mm), which is very thin but noticeably in contrast. The upper Disk (Part 6) is the same size as on the other side Ø 2 mm x 0,3 mm, and for the Slant (Part 5) and the Plate (Part 4) I have each used an Evergreen strip (1 mm x 1,5 mm). For gluing the disc on the slant, it was again fixed centrally between two steel rulers. So far, so good. Next, I actually wanted to glue the Slant (Part 3.4) under the Center support (Part 2). But before that I glued the two rings on the bow of the LO2 Feedline, which one can see in this photo. Source: NASA For this I wrapped an Evergreen Strip (0,5 mm x 0,5 mm) around a steel rod and held it under the Hot air gun, then I've cut out two short segments, which were glued between the two Feedline Brackets, wherewith these details get done now too. Then the slant was glued under the Center support, which extends to the LH2 Cable Tray under the Crossbeam. And that was also the expected delicate matter both for my eagle eyes (+ Headset magnifying glass), as well as for my quiet hand to place this part with the tweezers exactly as possible straightaway, what fortunately worked quite well. After that I immediately tried on the bow and checked its position in the contact zone under the center support and to the slant, and corrected its position still minimally. At the rear end of the slant now this CT-bow must be glued, as well as on it the remaining CT-Parts (Parts 4-6), which hopefully still fit in between. Following that, I will then bend the end piece of the GO2 Press. Line also from a Nickel-silver rod (Ø 0,4 mm), which goes from the last Ice Frost Ramp up to the Umbilical plate, but for the time will being not glued. The remaining GO2 Press. Line forwards up to the LO2 Tank will then later be installed as a separate line. Source: NASA That's it for today, dear folks, and thanks for watching.
  13. Thanks Kirk for your kind comment. First I will complete the LO2 Cable Tray and still install the end of the GO2 Press. Line from the last Ice Frost Ramp up to the Umbilical Plate. With this the Aft ET/Orbiter Attachment should be nearly complete. Then I'm going to wrap the entire ET with the thin tape spiral to apply the SOFI pattern texture using the Flour technique, whereto I have to mask the contact surfaces of all Ice Frost/PAL Ramps before. Then the SOFI-textured ET can be primed and painted. Afterwards I could then continue with the Orbiter, or also complete the MLP, including LED lighting ... Then the FSS/RSS and the Diorama are still waiting for me ...
  14. Hello everybody, well, this slanted front part of the Cable Tray(Part 3.4) really has it in it and has almost already become to a nightmare of my sleepless nights ... But meanwhile I'm of the opinion that one edge more or less doesn't matter, and therefore I will be content with an approximate solution, especially since later one cannot see this part under the orbiter from the outside anyway. The biggest difficulty in interpreting the course of the contours in the front area was this red circled notch directly under the Center support, which I have yet still decided to do, Source: NASA which can be clearly seen again on this image section. Source: forum.nasaspaceflight.com (DaveS) And in this image one can also see the front area relatively well, where I will then orient myself during scratching, Source: NASA especially since this is only a short stub of about 5 mm length anyway, as one can see here. For the upper closeout, I've glued a Strip (0,25 mm x 1,5 mm x 3 mm), and the lateral closeout will follow next in a similar way, wherewith I will then content myself.
  15. Hello friends, but with the attaching of further parts that's another story, which is why I've thought of everything twice again plenty, especially since it is in the combination of such filigree parts not to millimeters, but rather by decimillimeters. And wether at the end the exact installation dimension of the Cable Tray would come out is more than doubtful, or but coincidence. Therefore, one does not get along without fitting, which is why it is better to proceed step by step, i.e. scratching one part at a time and preferring to test better safe than sorry to be able still to correct in between. Thus, the CT-Dummy had done its duty and could be set aside. But already with to try on the parts one has a lot of trouble to bring these small parts into position and then measure distances, what one can see in this image. Because in order to lay up the profile bar for the slant next to the central support, I had to put (with breath hold) a spacer in between. Therefore, it seemed appropriate to glue first the Center support (Part 2), so as to have a fixed point for the further procedure. Before that, I've placed the support several times on the outer LO2 Feedline Bracket and juggled back and forth, and finally made even smaller corrections (height/width) until I was satisfied with its position and then it could finally be glued. Because if the size and location of this support would not be right, would not fit the slant, as well as the subsequent bow too. And now, by laying on of the intended Profile bar (1,5 mm x 1,5 mm), I was able to more accurately determine the required length of the Slant (Part 3.4) than before, because the support could not slip anymore. But before I shorten the rod to the final length, I may be want to make a few minor modifications. At least the lower tip of the bar under the support should become still slightly bevelled. In order to be able to adapt the bow with the lower Closeout to the support, I had to first shorten a bit the upper part of the bow in order to attach it to the Umbilical plate and to be able to test the position. And also for this a special substructure was needed to get to the appropriate height. Above the black marking, it will then go on with the Parts 4-6. But as one can see, the front part with the Closeout fits quite well under the support, so now still only the front slant has to be made to fit.
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