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Everything posted by spaceman

  1. Back to the Beginning of NASA Space Shuttle Missions Space Shuttle Launch Pad 39A with Challenger STS-6 Now it is time for presentation my Launch Pad 39A-Project in the ARC forum and I hope you'll be interested in. To the prehistory: After conclusion the NASA Shuttle program last summer with the last Atlantis-Mission (STS-135), I dedicate my first real space modeling project to the beginning the legendary space shuttle era before more than 30 years. I was inspired to this major project by similar space modeling projects in the German forum Raumfahrer.net. I decided for the STS-6-Mission with the Challenger (04.04.1983) as guidance version for my build, because I would like to build the tower version from the initial years of shuttle era with the red lattice windows and the partial red FSS grating structure inclusive hammerhead crane, which fascinated me somehow. The following picture shows the Challenger during the roll-out in the fog on their way to the Launch PAD 39A, source: NASA as well as with the lift-off to the STS-6-Mission. source: NASA To the project: To be built is the Launch Pad 39A with Launch tower, Shuttle stack, as well as Mobile launcher platform (MLP) and Crawler transporter (CT). Basic module for my project is thereby the Revell kit 4911 in scale 1:144“, in quotation marks and red, because one already is thereby for the cardinal problem of the actually mad Revell kit, the scale dilemma, to which one could be written its own chapter and said therefore some more must. For the addition of the launch tower FSS I procured myself the Detail Kits von LVM Studios. Since I decided for the STS-6-Mission with the Challenger, with the Detail kits of LVM one can represent thereby the elevator shaft of the tower in the original building technique with the red lattice windows, as it in the early years the shuttle era looked quite. In addition Detail kit No. 1 contains parts for the complete staircase in the tower, which is completely missing with Revell's 4910/4911. The LVM kits contain photo etched parts (PE) from thin brass sheet metal, with which very finely detailed structures can be produced as well known. For building MLP and Crawler I use cardboard-model kits by David Maier from EDU-Craft Deversions on scale 1:144. The kits consist in each case of 13 colored building sheets of cardboard (27.5 cm x 42.5 cm) as well as a building guidance on CD-ROM. To the scale problem: As most of you will know, Revell kit 4911 is seriously underscale and not true to scale 1:144, which lead inevitably to problems with the building. Therefore one has two possibilities, if one liked to use the Revell kit. Either one builds the kit Out Of Box (OOB), because in such a way the building groups FSS, RSS, shuttle stack and MLP fit to each other from the size, only stop is not everything on a scale 1:144, but only shuttle stack. Or one is compelling by partial scale adjustment to compromises and to scratch building, if one liked itself to orient halfway at the original. Of course one can do the build also without the Revell kit by overall scratch building. As way out of the scale dilemma I decided for a compromise settlement. Therefore I made myself first of all own assembly drawings, in order to receive a better overview. Starting point for my considerations was the following design of Gold Member Halbtoter in Raumfahrer.net forum, which shows a comparison between the Revell kit 4911 and the FSS/RSS in the true scale 1:144. source: Halbtoter The black design originates from the Revell building guidance, and the version drawn by Halbtoter by original plans of NASA is red in 1:144. It becomes clear one when exact looking that the red MLP (1: 144) does not fit no more into the Revell RSS. Since this line tangle can confuse one first however and in addition the mini MLP of the Revell kit is not with drawn in, I made myself in addition the following designs: This design illustrates clearly the descriptive scale dilemma of the Revell kit 4911, if one would build all OOB. The serious error is evenly the much to small MLP (1:200!!!) of the Revell kit, which does not fit somehow at all the total proportions. In addition it comes that also the FSS Tower (RSS probably similar) is too low approx. 7,6 cm thereby only one scale of approx. 1:168 corresponds. The image quality must accept your stop, because there two transparency sheets lie one above the other. :o The next design shows now a comparison of the RSS/FSS with MLP in 1:144 (with me black!!!) and in contrast to the Revell conditions in 1:168 and/or 1:200 (red). Considering this awkward situation I came to careful consideration in the long run that one does not come with the scale around a compromise unfortunately around, if one liked to use at least the FSS and RSS as main components of the Revell kit. And in such a way now past planning for my project looks as compromise settlement, with which I will build MLP and Crawler in 1:160 and in addition FSS and RSS in the height are supplemented around approx. 3 cm. I hope now that the result will then contently place me also to some extent. So, now however enough the preface and thus finally to the building and to the first parts and pictures. First part of my project will be the MLP platform, for which I procured myself the cardboard model kit of EDU-Craft Diversions on a scale 1:144, with which one the MLP-2 used with the mission STS-6 can build. Since I will build however MLP and Crawler transporter on a scale 1:160, first I went with the 1:144 cardboard sheets into the copy shop to reduced it to 1:160. Here is a small selection from the 13 MLP sheets. The two following pictures show now what then from it is to become, the MLP, first without source: EDU-Craft Diversions and here at the same time with shuttle stack as impressive comparison with Revell's mini MLP. source: EDU-Craft Diversions And in my next post I will show you first pictures of my building site.
  2. Hello friends, due to some short vacation in the Dental lab the Ultrasonic cleaning of the FUD-Intertank will take some time, I've thought again about the further building process and came to the following decision. Since I've been working intensively on the External Tank/Intertank lately, it actually makes sense to keep going and completing it as the basic building block for the Shuttle Stack, i.e. including the related details such as LO2 Feedline, GO2/GH2Press. Lines, the Ice/Frost Ramps and PAL Ramps, as well as the Orbiter Attachments. This includes then also the imitation of the Instafoam insulation structure of the front and rear ET parts by the special "Flour technique" as well as the final priming and paintwork. Then it will continue with the SRBs and the Orbiter, which finally complete the Shuttle stack. Only then will I proceed to the construction of the Launch Tower (FSS/RSS), whereby the complete stack MLP will be available for control, in particular when it will depend on every millimeter for increasing the tower to the needed height. Furthermore I decided for not to let be modeled the Ice/Frost Ramps as a 3D set, but rather to use the filigree ramps from the already presented Newware Kit (NW131), which one can not do better actually, which is why I have now bought myself this kit, which I would like to introduce here again briefly in some images. These are predominantly resin parts, as well as a PE sheet with finest details for the ET and the SRBs as well as for the orbiter, incl. some Decals. Although the kit is designed specifically for the Revell Shuttle Stack (1/144), some parts can also be used for the Airfix Stack, so such as here among others the fine structured SRB Forward Frustum & Nose Cone, if I measured correctly. Below are some of the tiny Ice/Frost Ramps and one of the filigree SSME engine nozzles. Here is the PE sheet once again. For the engine nozzles, I actually wanted to use the kit from RealSpace Models, which I had set aside already long time ago and now could compare to the Newware nozzles. It immediately stands out that the RealSpace SSMEs look more squat and seem to be slightly larger than those of Newware. And once we're comparing already, I also added the nozzles of Revell (left) and those of Airfix (grey), from which you can now choose what you like better ... For my taste, then the SSMEs of Revell and Airfix quickly discards, whereby this begs immediately the question of the dimensions in comparison to the original. I have only found these SSME dimensions by Pratt & Whitney: Lenght: 168 in. = 4,30 m = 29,9 mm (1/144) Diameter: 96 in. = Ø 2,40 m = Ø 16,7 mm (1/144) Unfortunately this is only the total length of the SSME, but not the length of the engine nozzle. Maybe someone can help.
  3. Hi Mike, yep, I've tried scraping it out off the Stringer valleys with the steel ruler, but thereby it can happen that you break through the valley, as it happened here at the IT which I have cleaned with oven spray. But I think I'll manage it with the final IT at my next trip to the Dental Lab if I follow the instructions of the BANDELIN expert. Otherwise I'll take the WSF Intertank, which fortunately has no support wax, as we learned from Bill.
  4. Hello everybody, in preparation for the decisive cleaning of the last FUD-IT in the Dental lab, I have dealt more intensively with the matter and looked around further. In the already shown BANDELIN Video of the ultrasonic cleaning of the chain the intensive cleaner TICKOPUR R 60 (10%) was used for approx. 2 - 3 h at 70 °C. In a corresponding product information of the DR. H. STAMM GmbH I found this information, which made me unsure referring to the cleaning time, as they are much shorter. Application with ultrasound Dosage: 2 - 20 % Cleaning time: 1 - 10 min. Temperature: 20 - 80 °C Application without ultrasound Dosage: 10 - 30 % Cleaning time: up to 12 h Temperature: 20 - 80 °C Therefore I have contacted BANDELIN and received the following answer from the DR. H. STAMM GmbH (Plant Manager Stephan Herzberg), what amazed me at first. The cleaning time in removing the support material is a special application, which deviates considerably from the usual vleaning times, which are recommended in the product information, but have been determined by tests and have already been used successfully by several customers. A soapy water will probably not bring the desired cleaning result even with prolonged time, which you can of course test. We recommend the use of TICKOPUR R 60 with the application parameters given in the video. Thereupon I contacted the manager and first learned that the DR. H. STAMM GmbH historically belongs to the corporate group BANDELIN and cleaning and disinfection preparations for SONOREX Ultrasound Technology developed and produced. Then he willingly gave me information to my questions about the application parameters given in the video , as well as special advice for cleaning my Intertank. Since the strongest ultrasound effect in the trough occurs from below, the IT should not be upright during the cleaning because of the grooves, but lying longitudinally in a glass insert, and by stepwise rotation about the longitudinal axis after about 15 minutes in TICKOPUR Bath at 70 ° C cleaned and checked in between. For the best cavitation performance, the glass insert should have a distance from the bottom of the tank of approx. 2 - 3 cm and, because of the connection itself, also be surrounded by water + cleaning agent, otherwise losses would occur. Considering the filigree grooves of the Intertanks he thinks that longer cleaning times of about 2 - 3 h might be necessary, which is why checks after shorter intervals would make sense. Now all I have to do is wait for the ordered TICKOPUR, and then I will go back to the Dental lab for the Final Countdown.
  5. Thanks Bill for your last hints.
  6. spaceman

    Bought a Printer!

    Hi Bill, I have sent you a PM, but your PM box still seems to be full. Therefore please look here and you will find my last question!
  7. spaceman

    Apollo Saturn LUT by LVM Studios 2015

    Hi LUT friends, in the Spring Advertising 2018 Part I by Andromeda24 states: LVM is currently no longer producing kits. They continue to work on the Launch Umbilical Tower. The Part II contains this message: Everything stays different ...
  8. Hello folks, this is the news of the month: In 2015 LVM Studios will release the Apollo Saturn Launch Umbilical Tower. Source: NASA At Scale Model World 2014 in Telford UK (11/08-09/2014) LVM presented a prototype of their BIG LUT Project, Source: LVM Studios which will be available in three different scales: 1/144 for the Revell Saturn V or Airfix Saturn V 1/96 for the Revell Saturn V 1/72 for the Dragon Saturn V This is definitely a spectacular and very challenging project, only question is what price will be called for these kits ...
  9. spaceman

    Is LVM Studios still in business?

    Hi friends, In Andromeda's Spring Advertising 2018 Part I states: LVM is currently no longer producing kits. They continue to work on the Launch Umbilical Tower.
  10. Thanks Bill, I already suspected that, so the IT is not primed with the Texture Spray. In a Shapeways tutorial I also found the same, that no primer is necessary. Therefore, but again a question about the painting of the ET with the brown/orange color. Since I suspect that you have not just airbrushed only one layer, how many layers have you applied and how long have you dried it in between?
  11. Hallo Bill, on these images one can see your not painted WSF Intertank, sitting between the other two ET parts, which are painted with the Texture Spray. And here the whole ET is painted with the orange paint, and the IT does not look like that it's primed before with the Texture Spray. But maybe that's wrong too. So again my question of how you primed your WSF Intertank before you painted the whole ET with Citadel Vomit brown.
  12. spaceman

    Bought a Printer!

    Hi Bill, congratulations on your innovative acquirement and great success with it. BTW, it would be nice if you could still find a bit time for answering my question at the end of my post from Thursday, before you get started at full throttle with your Hi-Tech printer.
  13. Hello everybody, before I go into detail about with the final FUD-IT, here are both IT variants one more time in comparison. In preparation for the cleaning campaign in the Dental Lab I have again scrutinized the FUD-IT under my new magnifying glass and taken macro shots all-around, in order to be able to better control the critical points on site, whether or how far the wax residuals have been removed. As I have already described, the last of the three FUD-ITs has the fewest wax residuals, once more confirming the different quality of the Shapeways aftertreatment. In the circled areas one can see clusters of wax residuals in the grooves, which are visible more or less well due to the low FUD contrast. And after a full circumnavigation of the IT, I'm back at the starting point at the two Fairings, wherewith I want to let it go at that for today.
  14. Thanks Mike, I will try both variants and then choose the best.
  15. Hi Brian, yep, the WSF-IT surprisingly looks really awesome. But I do not give up the ghost and I hope to get a grip on the FUD-IT still and give it a new chance, when I can use again the better possibilities of the Dental laboratory. Meanwhile, I talked to a BANDELIN expert who gave me valuable tips on ultrasonic cleaning conditions I never heard before and might be the key to success.
  16. Thanks Mike, I'm still thinking too, but I hope I will get a grip on the cleaning of my final FUD-IT in the Dental lab. Then I will paint both variants and can compare them. Michael Key highly recommended a spray called Mr. Surfacer for the WSF-IT , which is available in 500, 1000, and 1500. https://www.amazon.com/dp/B002DTL7NU/ref=olp_product_details?_encoding=UTF8&me= Do you know this stuff?
  17. Hello friends, meanwhile, I also got the WSF-Intertank, which gives me a comparison between these two materials. And I have to confess that I'm quite surprised, especially since the details come out well despite the slightly grainy surface. And since there is no shrinkage in the WSF material during printing, the IT fits exactly between the two ET parts. Of course, the roughness looks blatant on these macro shots, but already with some distance from the normal viewing perspective, it looks much friendlier And if the IT will be painted, he should also fit optically well to the other two ET parts, which additionally shall get their insulating foam look. Since WSF printing uses powdered plastic and no support wax, the parts have only a slight powdery residue that can be removed by slight rinsing off in dish water, as Bill (niart17) has reported for his 1/72 WSF-Intertank. In this context, it would be interesting if Bill could tell us, what kind of primer coat and paint he did use for his WSF-IT. Because WSF is porous and sucks up a lot of moisture, one should let dry the parts for several days, before one applies a primer. But all in all it means, that cleaning of WSF parts should be less expensive than of FUD parts.
  18. Okay, I've heard of gasoline, maybe that's what I'm still testing.
  19. Hi Pete, yep, it's starting to get scary and spoil all the fun with tiny details, but maybe that's the curse of the many grooves. On the one hand the cleaning of this Intertank with its many fine grooves obviously is an extremely hard nut and very difficult to handle. But on the other hand it also seems to be a problem of the post-treatment and cleaning of prints by Shapeways itself, because the third IT seems have been treated more thoroughly and consequently to be cleaner than this first IT. Other guys have also noticed and complained about this different quality of the post-treatment, as I've read in several forums. Maybe Shapeways would have to let him in the oven for longer to melt out the residual wax completely. In this context, I remember a passage in Shapeways Magazine (1. Model Prep) with the following interesting tip, which could be a broad hint for all users. **TIP** If you notice an excess amount of residual support material or details are distorted, this may call for a reprint. Please send an image and order number to service@shapeways.com. And then the following thing does not go out of my mind. This is the BANDELIN video about the ultrasonic cleaning of a chain I posted March 14, where one had cleaned for about 4 h at 70°C until all the wax was dissolved. This longer time we will take into consideration when cleaning the final IT in the Dental Lab next week.
  20. Thanks for your tips, Joe, these are the helpful advices of Steve Larsen (ModelMonkey), to which I have already referred. And the "air eraser" mentioned by him is an Airbrush mini sandblasting gun like this one. The industrial version of this sandblasting gun is the Reitel blast cabin at the ChiliDent Lab at my dentist where my IT has already been treated, what I have posted on Wednesday last week.
  21. spaceman

    Looking for LVM Mercury-Atlas LUT kit

    Here you will find the kit. https://shop.strato.de/epages/243845.sf/de_DE/?ObjectID=39397272 Sorry, as I have just seen, the kit can not be ordered at the moment.
  22. Hello everyone, as you can see on my outfit, I wanted to try sharper things today to finally cope with those annoying wax residuals. In the already mentioned PDF of Volkmar Meier for the cleaning of FUD/FXD-Prints he had i.a. even presented Stove cleaning spray as an effective remedy and seemingly successfully applied, which has made me curious. In order to test this initially rather unusual method on an IT, I contacted him by e-mail in France, to find out more about his procedure, to which he has surprisingly answered in German, which I almost suspected according to his name. The spray in his image is the DecapFour from Henkel available in France in the blue box containing caustic soda lye, and therefore is to be used with caution, which is why one absolutely should wear rubber gloves! He sprayed the models outdoors on a baking sheet from all sides with the oven spray and waited until the foam has dissipated, about 30-60 minutes. Then followed by one, two lukewarm water baths, where he scrubbed the models with an old toothbrush. In Germany there is a comparable spray under the name Sidol, which I got in the supermarket, and had to test it immediately in the garden, let's go! First of all, the IT in the box was vigorously foamed from all sides until it was no longer visible. And then I waited eagerly for the foam to finally dissolve ... But when nothing had happened after an hour, I got the tank out of the box and scrubbed it in the water bath around with the toothbrush for a few minutes. And because it was just so beautiful, I almost continued with myself, but I was just now able to hold myself back!!! Fun aside, because after the tank was dried, the disillusionment came promptly. As you can clearly see, there are in addition to clean areas still with wax residuals, both between the stringers, as well as in the fine grooves of the Thrust Panel, and especially under raised details such as the Access Door and the two Fairings. Furthermore, it is noticeable that the stringer grooves of the rear half of the tank are clean, whereas those in the front half still contain wax, which I can not explain. That's why I grabbed the steel ruler to remove the residuals, which is possible, but very tedious and therefore not the yellow of the egg. But maybe someone of you has an explanation for that.
  23. Hi Pete, after he had hosed the IT with the water jet, one did not see at first, how much or whether all residuals have been removed. But when you look closely, you can see that there are still areas with wax residuals left behind, which shows that the first cleaning was not intense enough, which is why I at home have thrusted them out of the grooves with the steel ruler. Completely without local mechanical post-processing of these fine grooves, it does not seem to work, or one has to invest more time and care in the ultrasonic cleaning before. I'll definitely take that into account when cleaning up the final IT in the dental lab and will also look closer into the grooves. Therfore keep on fingers crossing til the end!
  24. Hello everybody, here's my report on my flying visit to the Dental lab last week. At my penultimate dentist appointment, I came up with the idea to confront my doctor with my Intertank cleaning problem and to ask if I could not even consult his colleagues in the neighboring dental laboratory. And friendly as he is, he agreed immediately and said that I should just bring along the tank at the next appointment. Said done, before my appointment last week, I was in the lab next door and I just happened to get to the nice manager, whom I showed me the original tank on a shuttle photo of the STS-6 and pressed him the Intertank in the hand, together with a short briefing to my previous chin-ups in the ultrasonic cleaning and the necessary parameters, i.e. mild medium (no Acetone!) and about 50°C. After the impression for an inlay I went back in the lab to the dental technicians 'with bite', as the name ChiliDent suggests already. This is the manager, Benjamin Geyer, and next to him on the wall stands a Sonorex high performance ultrasonic bath (Bandelin) with integrated heating. In this bath, he cleaned the IT in soapy water at approx. 50-60°C for approx. 15 minutes, whereby he carried out several visual inspections in between and brushed off the detached wax particles. Individual areas with remaining wax residues can then be removed in this Reitel Blast cabin, whereby finest glass beads (50 μm) are used. And then the IT can still be thoroughly rinsed with a high-pressure water jet. That's how I imagine the cleaning of the final IT for which I have already made a date. These are, of course, exclusive opportunities that I do not have at home and therefore thankfully like to use. One simply just must have a bit luck!
  25. Hi friends, over the weekend I took advantage of the bomb weather and bathed the final Intertank in the sun for half a day. Thereby not completely 'exposed' FUD/FXD should cure, which makes it easier to remove the wax.