Scratch-built 1/96 Oscar II

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  • KevinMC
    SubCommittee Member
    • Sep 2005
    • 463

    #136
    This morning I have some

    This morning I have some good progress shots to share. I've begun carefully laying down the Chartpak tape that will be used to make the recessed panel lines. This is a fairly tried-and-true method for creating butt-joined type panels in the model jet community. I'll be using this technique to outline only major features such as the doors that cover the cruise missiles, bowplane doors, towed radio buoy, etc... All the flood and limber holes will be marked using the same technique.

    Once the panel line locations have been marked, very thin (1/64" wide) tape is applied along where the panel line should be. This will initially create a raised panel line. Once I have all the tape applied, I'll spray on several coats of high-build primer. (In some areas I may also choose to use filling putty) This will all be sanded smooth, and the tape will then be removed leaving a nice, crisp recessed line that can be easily picked up in the molding process.

    Here's a closeup of the tape being layed down on the missile doors.

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    This is a closeup of the bowplane door covers.

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    These are service doors for loading the torpedoes.

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    And finally here's an overall shot of the hull with most of the panel tape layed down on the upper hull. I figure I still have another evening of panel taping, and several evenings to lay down the flood and limber holes... (There are about 250 flood holes that will need to be marked!)

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    Last edited by salmon; 04-07-2020, 04:40 PM.
    Kevin McLeod - OSCAR II driver
    KMc Designs

    Comment

    • PaulC
      Administrator
      • Feb 2003
      • 1542

      #137
      Kevin,

      Your tape method looks like

      Kevin,

      Your tape method looks like a great way to add weld line details to a hull as well. Prep the hull for priming, add the tape to the weld lines, then prime.

      You'd just need to make sure your boat's scale and tape width matches.

      Whatcha think -- will the tape hold during use with the primer sealing it to the hull?




      Edited By PaulC on 1136297421
      Warm regards,

      Paul Crozier
      <><

      Comment

      • KevinMC
        SubCommittee Member
        • Sep 2005
        • 463

        #138
        Paul,

        That might work, I dunno.

        Paul,

        That might work, I dunno. The tape is an adhesive backed crepe paper though, so sealing it really well would be essential. (I know that's how some of the jet/scale guys have been known to do panel lines, but the environment's not quite the same.) Chartpak tape is available in many different widths, but can be very difficult to locate. I've got 1/64", 0.020", and 1/32", although I'll just be using the 1/64" on the Oscar. (At 1/96", hatches framed by a 1/64" line would scale up to a gap of 1.5"!) For anyone who's interested Chartpak tape can be sourced through stores that carry drafting supplies, which in this day and age are becoming few and far between...
        Kevin McLeod - OSCAR II driver
        KMc Designs

        Comment

        • anonymous

          #139
          Kevin,

          Just great work! One question

          Kevin,

          Just great work! One question though. Where the h ell did you find the tape!!! I haven't been able to find it out here in LA! Help! Please.

          Steve

          P.S. I don't know if you plan to do this but I've just sprayed over the tape with primer. Many layers and then remove the tape. Light sand and you've got nice deep panel lines.




          Edited By U812 on 1136321596

          Comment

          • himszy
            Junior Member
            • Nov 2004
            • 282

            #140
            Kevin,

            On the photo showing the

            Kevin,

            On the photo showing the service doors for loading the torpedoes, did you draw the curved lines by hand or with that laser trick you used earlier?

            Thanks

            Michael

            Comment

            • tmsmalley
              SubCommittee Member
              • Feb 2003
              • 2376

              #141
              Cant' wait to see how

              Cant' wait to see how she looks after you pull the tape. I did something similar on my Hunley when I wrapped monofilament fishing line where I wanted hull plate lines. Then laid some Bondo over it, then pulled the line out before the Bondo set. Viola! Perfectly straight lines.

              Comment

              • pirate
                Member
                • Oct 2005
                • 849

                #142
                Kevin,
                I've used the tape trick

                Kevin,
                I've used the tape trick for creating recessed panels, like those on a U.S. nuke sail where the annacoic tiling doesn't go, and for indicating MBT drains to be cut out, works great. But I never thought of using it for the panel lines, brilliant!

                Here's a thought, I used to do some auto pinstriping, and a lot of it is done with vinyl striping tape. One could check at an auto detailing shop or even a sign shop to see if they can get tape this narrow. This stuff is great because it's very strong, is not porous, and can be bent along curved lines. Although I'm not sure how easily it would lift off, but worth looking into.

                Pete

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                • KevinMC
                  SubCommittee Member
                  • Sep 2005
                  • 463

                  #143
                  Steve- I found it in

                  Steve- I found it in two places actually. A buddy of mine in PA sent me some that he had ordered in at a drafting shop around the corner from his place. I also ordered some directly from a place here in Canada. (Delta Art & Drafing Supply in Edmonton, Alberta. 780-455-7983.) Prime and peel, yup that's the plan. Hey, what are you? Some kinda jet guy turned sub driver?

                  Michael- Although those lines are curved from the front, they are dead straight when viewed from above and from the side. I could have used the laser (didn't think of that actually!) but instead I just held up a square against the side of the hull and drew as much of the line as I could. I'll grab a photo tonight.

                  Tim- Monofilament, eh? I like it. (A heck of a lot easier to find than Chartpak.) How'd you keep it from moving around?

                  Pete- I'm glad to pass along a great idea, but it's certainly not mine. (Steve, what was it you said once about standing on the shoulders of those before you?) I agree that vinyl pin-striping tape would be superior to the crepe-based Chartpak, but I've not been able to find it smaller than 1/16". Perhaps a more thorough search is warranted. I too will be using tape for marking flood/drain holes. What kind of tape do you normally use for this?
                  Kevin McLeod - OSCAR II driver
                  KMc Designs

                  Comment

                  • KevinMC
                    SubCommittee Member
                    • Sep 2005
                    • 463

                    #144
                    G'morning folks...

                    I got a couple

                    G'morning folks...

                    I got a couple more details all taped up last night. I completed the equipment hatches behind the Granit doors.
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                    In my usual style I also had some back-tracking to do. Another look at some dock-side photos suggested that I had my bowplane doors a running 1/8" or so high on the hull. So I peeled up the tape and layed it out again just a little bit lower. (I left the original pencil marks in place so the difference can be seen.)

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                    Finally, I also stated putting some reference lines down for the torpedo tube doors. (Don't get hung up on the size of the blue dots- they're intended to be indicatve only of tube door centers, not tube door diameters.)

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                    Michael, here's a couple of shots of how I marked those panel lines on the bow. Note that in the square is not perfectly aligned with the long axis of the sub, nor is the camera angle perpendiular to it, so there appears to be a slight misalignment between my marked lines and the square.

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                    Last edited by salmon; 04-07-2020, 04:44 PM.
                    Kevin McLeod - OSCAR II driver
                    KMc Designs

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                    • wayne frey
                      Junior Member
                      • Aug 2003
                      • 925

                      #145
                      Remeber Kevin, Doors are not

                      Remeber Kevin, Doors are not round either, and have flat sides on them, like the Typhoon.

                      Comment

                      • KevinMC
                        SubCommittee Member
                        • Sep 2005
                        • 463

                        #146
                        Wayne- Forget that I shan't!

                        Wayne- Forget that I shan't! I spent a great deal of time last night trying to get the locations to look right when compared to your head-on shot (from the SubPirates board). (Below) This is a particularly useful photo as it's taken from a very good angle- almost dead on level with the bow and nearly perfectly aligned with the long axis of the ship. When viewed from this angle the doors appear nearly perfectly circular except for, as you pointed out, the straight edges on opposing sides.



                        My guess is that the hinging axis of each door runs perpendicular to these straight edges. I can't wait to make the final markings for all this on the hull as I've already figured out how to make the jig to do it. Don't worry, I'll take many photos...

                        Now if only I could find a pic that clearly showed both the upper and lower doors at the same time! (Or even just the upper doors from this same angle as they are irregularly shaped.)
                        Kevin McLeod - OSCAR II driver
                        KMc Designs

                        Comment

                        • pirate
                          Member
                          • Oct 2005
                          • 849

                          #147
                          Is this a missile boat

                          Is this a missile boat or what? That thing is a bohemith. Those Ruskies make the most big, awkward looking things ever. It's like they stick everything inside, then just cover it all up with steel panels, and wherever there's a lump, there's a lump. I know you guys really like these boats, but they're very funny looking to me. Except for the Alpha. NOe that's a slick lookin' boat.

                          Pete

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                          • himszy
                            Junior Member
                            • Nov 2004
                            • 282

                            #148
                            Well if we are talking

                            Well if we are talking about ugly boats]http://www.hazegray.org/features/russia/del1-03.jpg[/img]
                            That is the ugliest-the Delta III (and the IV), then the LOSOS.

                            Oops, this thread is going OT. Sorry Kevin. Thanks for posting that picture.

                            Michael

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                            • KevinMC
                              SubCommittee Member
                              • Sep 2005
                              • 463

                              #149
                              Although I haven't really warmed

                              Although I haven't really warmed up to the "afterthought" look of the Delta series, I find a simplistic elegance in the brutish look of the Oscar...

                              Michael, your pic isn't coming up. O/T or not, I'd like to see it!
                              Kevin McLeod - OSCAR II driver
                              KMc Designs

                              Comment

                              • himszy
                                Junior Member
                                • Nov 2004
                                • 282

                                #150
                                http://www.mhims.co.uk/Images2/del.jpg

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