Announcement

Collapse

Forum rules and expectations

Hello, and welcome to the forums at the Nautilus Drydocks, formerly Sub-driver.com!

We welcome anyone with a passion for submarines and a desire to learn and share knowledge about this fascinating hobby. Use of these forums indicates your intention to abide by our code of conduct:


1. No spam. All automated messages, advertisements, and links to competitor websites will be deleted immediately.

2. Please post in relevant sub-forums only. Messages posted in the wrong topic area will be removed and placed in the correct sub-forum by moderators.

3. Respect other users. No flaming or abusing fellow forum members. Users who continue to post inflammatory, abusive comments will be deleted from the forum after or without a warning.

4. No threats or harassment of other users will be tolerated. Any instance of threatening or harassing behavior is grounds for deletion from the forums.

5. No profanity or pornography is allowed. Posts containing adult material will be deleted.

6. No re-posting of copyrighted materials or other illegal content is allowed. Any posts containing illegal content or copyrighted materials will be deleted.
See more
See less

Japanese Class A 1/16

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Thank you Manfed! I am grateful for your heart and willingness to share!
    If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.

    Comment


    • what he said....and great stuff/detail.

      grtz,
      bart
      Practical wisdom is only to be learned in the school of experience.
      "Samuel Smiles"

      Comment


      • Hello
        I too have to say Thank you Manfred for your posting and sharing. Could I please ask / beg for you to redo the circuit drawing, I find I am having some trouble seeing clearly the drawing and the parts list itself.
        Sorry for the bother.
        George

        Comment


        • George, the scematic is what it is, as for the needed parts,
          P1- 1 Mega Ohm mini-potentiometer
          R1- 1 Mega Ohm resistor
          C1- 1 Elco 47 micro-Farad 16 Volts
          R2- 1 10 Kilo-Ohm resistor
          T1- 2 BC 547B Transistors

          As for the relais, this depents on which voltage you run the circuit, i've used a 6 volt relais because i run on 2S (7,4 Volts)

          Manfred.
          Fertig zum unterwasser.

          Comment


          • Still on the move with the Ko Hyoteki, wanted to make some big steps accourding the hull build, this is where i stand now

            Click image for larger version

Name:	IMG_1283_zpsrge8r1nn.jpg
Views:	1
Size:	178.2 KB
ID:	123734

            First i had to skin the hull with glass to protect the styrodure against the filler and paint.

            Click image for larger version

Name:	IMG_1286_zps74wyt0i0.jpg
Views:	1
Size:	199.6 KB
ID:	123735

            In general i apply one extra coat of epoxy to fill most holes, believe me, after spraying some primer i found a lot more, had to make about six runs of filler and wetsanding to get her right.

            Click image for larger version

Name:	IMG_1304_zpsiwr1ihli.jpg
Views:	1
Size:	157.2 KB
ID:	123736

            Click image for larger version

Name:	IMG_1300_zpsfoxyg7yj.jpg
Views:	1
Size:	169.6 KB
ID:	123737

            After this hurdle was taken the fun started, applied all weldinglines with a laser, and started to add the fishingline for imitating the weldinglines.

            Click image for larger version

Name:	IMG_1306_zpsbpohngyd.jpg
Views:	1
Size:	133.8 KB
ID:	123738

            It took a week or so to get all lines glued down, sniffed enough CA fumes for months.

            Click image for larger version

Name:	IMG_1308_zpsr7ltgaso.jpg
Views:	1
Size:	161.7 KB
ID:	123739

            Click image for larger version

Name:	IMG_1309_zpstsxxnyaa.jpg
Views:	1
Size:	161.3 KB
ID:	123740

            It was worth the effort, she finally starts to look like a sub, next time i will enjoy you guys with rivets-time.

            Manfred.
            Fertig zum unterwasser.

            Comment


            • Wow.....just wow.
              If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.

              Comment


              • What he said! How did you do this; "applied all weldinglines with a laser"?

                Comment


                • laser is for straight lines both vertical and horizontal and fish line for actual bead, I believe.
                  If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.

                  Comment


                  • Less exciting than I had imagined. Que James Bond laser scene etc etc.

                    Comment


                    • Tom is right, i bought a simple laser that could project both the horizontal and the vertical lines at once, placed it on a tripod and moved the boat on the workingbench.
                      Added the fishinglines as imitation of the weldingbeads, one catch, use braided line, it better simulates the weldingbead.
                      Be patient, the rivet adventure will follow soon, all i can say, it was al lot of work/time to get those in complete with all the hatches.

                      Manfred.
                      Fertig zum unterwasser.

                      Comment


                      • As promised the rest of the story, after placing the weldinglines i had to move over to placing the rivets, used the laser again to mark out the places of the rivets, started with the easy one's at the bow and the stern, a job pretty straight forward.

                        Click image for larger version

Name:	IMG_1313_zpsgbh9l7co.jpg
Views:	1
Size:	105.7 KB
ID:	123773

                        The more difficult one's where the ventholes for the batteries, made a template and drilled the holes, inserting the rivets to finish it up.

                        Click image for larger version

Name:	IMG_1312_zpsaoibgycj.jpg
Views:	1
Size:	136.0 KB
ID:	123772

                        This one was more complex, luckely i had some documentation profided by David and Gene, together with a book from this sub i went making the templates for making this, you also can see the double row of rivets at the stern.

                        Click image for larger version

Name:	IMG_1318_zpsavz30wq2.jpg
Views:	1
Size:	305.7 KB
ID:	123774

                        Click image for larger version

Name:	IMG_1317_zps3fl5kacw.jpg
Views:	1
Size:	303.1 KB
ID:	123775

                        I decided to use primer instead of glue for locking up those rivets, this way i get nice sharp rivets without the trouble of removing the excess glue, gave her a total of three layers of primer, more to be sure that those rivets stay on their place.

                        Click image for larger version

Name:	IMG_1336_zpsipxxtqtu.jpg
Views:	1
Size:	163.7 KB
ID:	123776

                        Click image for larger version

Name:	IMG_1337_zps2o0hmxwg.jpg
Views:	1
Size:	159.4 KB
ID:	123777

                        Last but not least the final layer of paint, done this to get a smooth surface for making the mold, for now i have to make the bracket for holding the plug and prep her for building up the actual epoxy mold, this would be my first in adding all details on the plug itself, to get all the details i'm going to use a gelcoat at the first stage of building the mold.
                        I took me a few months to get to this point, running the gauntlett between the honey-do list, my house, the bikes and some other minor things, normally i prefer to build the mold during the spring because of tempartures.


                        Manfred.

                        Fertig zum unterwasser.

                        Comment


                        • Manfred, That is an amazing sub! If you re going to make some hulls, let me know the price and I will see if I can afford one. That is truly a work of art as well as a reflection of your craftsmanship.
                          If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.

                          Comment


                          • Here, here. Great looking boat.

                            Comment


                            • Sorry for the late respons guys, it's busy in the cave, i'm pushing to get the molds ready before the low tempartures hit me.

                              Tom, as for more hulls, i have to see about that how the final hull will come out of the mold, from that i can see what the amount of time will be to build more.

                              As for the work allready done i'll give a update,


                              Click image for larger version

Name:	IMG_1338_zpss7agq7do.jpg
Views:	2
Size:	276.7 KB
ID:	124070


                              First i had to follow the drill of building a jigg to hold the plug.

                              Click image for larger version

Name:	IMG_1340_zpspbspkw33.jpg
Views:	2
Size:	170.9 KB
ID:	124071



                              Playing around with some clay to patch up the void between the jigg and the plug.

                              Click image for larger version

Name:	IMG_1339_zpsjtfttsqq.jpg
Views:	2
Size:	159.1 KB
ID:	124073



                              Using a simple tool to remove the clay, from this point on you have to act in one move, when finished reworking the clay i added the mold-release.

                              Click image for larger version

Name:	IMG_1341_zpsl4g6udaq.jpg
Views:	2
Size:	175.7 KB
ID:	124075



                              The gelcoat added to catch all the details of the plug, now you have to wait for the moment when the gelcoat becomes sticky, normally it takes half a hour, but since the temparture is lower i waited for a hour to be sure.

                              Click image for larger version

Name:	IMG_1342_zpscfjhpdd6.jpg
Views:	2
Size:	184.5 KB
ID:	124077



                              Added the first layer of glass and epoxy, used chopped strands to catch all sharp corners, you're out of the dangerzone when this layer has dried.

                              Click image for larger version

Name:	IMG_1348_zpssg5lop1i.jpg
Views:	2
Size:	154.6 KB
ID:	124079


                              Building up the layers is pretty straight forward, it took me a full week every day to build up the mold on one side, cleaned the outer edges with the dremel.

                              Click image for larger version

Name:	IMG_1347_zpstiep0m6r.jpg
Views:	2
Size:	150.7 KB
ID:	124081



                              Prepping the other side for the next run, yet again it took me a week to complete the other side.
                              Click image for larger version  Name:	IMG_1352_zpsf0eqezgk.jpg Views:	1 Size:	222.7 KB ID:	124062




                              The fun part after a few weeks, splitting the mold, due to the simple shape it came loose without any efford.
                              Click image for larger version  Name:	IMG_1354_zpsoiz2pumn.jpg Views:	1 Size:	228.4 KB ID:	124063




                              The other side also loosened, with this mold i made it with fewer layers as with the V80 and the type 17, this gave me some flex for loosening the plug, it worked out well.
                              Click image for larger version  Name:	IMG_1353_zpsal9szdvy.jpg Views:	1 Size:	155.1 KB ID:	124064




                              As for the details, they came out well, the plug was only slightly damaged, lost some weldinglines as some rivets, but nothing what can't be replaced on the plug, one big hurdle taken.
                              Click image for larger version  Name:	IMG_1355_zpsvvgztfbz.jpg Views:	1 Size:	180.8 KB ID:	124065




                              Right now i'm in the proces of making the mold for the tower, making this jigg was a differend story, i followed the path used on the balconygerat of my type 17, stiffened the jigg with some copper rods, for now i'm playing with this, to be continued.


                              Manfred.
                              Attached Files
                              Last edited by MFR1964; 11-13-2017, 04:08 PM. Reason: messed up my picture links
                              Fertig zum unterwasser.

                              Comment

                              Working...
                              X