Assembling the Zero Bubble Model Design 1/120 PAPA Kit

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • JHapprich
    Rear Admiral

    • Oct 2017
    • 1031

    #16
    Hi. Resuming assembly after a neglectable interruption...

    starbord bow needed some attention due to slight warping... Click image for larger version

Name:	20250103_184900_copy_1125x2000.jpg
Views:	95
Size:	51.9 KB
ID:	185228 Click image for larger version

Name:	IMG-20250103-WA0006_copy_960x540.jpg
Views:	107
Size:	50.3 KB
ID:	185227 Click image for larger version

Name:	20250103_184848_copy_1125x2000.jpg
Views:	96
Size:	61.0 KB
ID:	185229 Click image for larger version

Name:	20250103_184843_copy_1125x2000.jpg
Views:	93
Size:	61.4 KB
ID:	185231 Click image for larger version

Name:	20250103_190118_copy_1148x2040.jpg
Views:	85
Size:	59.2 KB
ID:	185230

    Comment

    • JHapprich
      Rear Admiral

      • Oct 2017
      • 1031

      #17
      Greetings! I quickly resumed working on the hull as i want to have the model finally completed by the end of the year. I installed the indexing lips and the locking bolt. The planes were aligned, however after checking my plans, i figured on my kit some adjustments are necessary. The deck in front of the upper rudder needed correction, too. The stern cones to the propellers showed warping, so they needed filling and sanding. However, i am thinking about cutting them off and adding newly produced, perfectly round cones that would be blended into the hull, because i am a bit stuck at this point as of now.

      Click image for larger version  Name:	20260518_212733_copy_918x1632.jpg Views:	0 Size:	54.6 KB ID:	196399 Click image for larger version  Name:	20260518_212722_copy_1632x918.jpg Views:	0 Size:	57.1 KB ID:	196400 Click image for larger version  Name:	20260520_072053_copy_918x1632.jpg Views:	0 Size:	59.5 KB ID:	196401 Click image for larger version  Name:	20260520_072033_copy_1632x918.jpg Views:	0 Size:	61.3 KB ID:	196402


      Click image for larger version  Name:	20260520_071905_copy_1632x918_1.jpg Views:	0 Size:	56.8 KB ID:	196403

      Click image for larger version  Name:	20260520_214707_copy_918x1632.jpg Views:	0 Size:	56.3 KB ID:	196408 Click image for larger version  Name:	20260520_214727_copy_918x1632.jpg Views:	0 Size:	62.3 KB ID:	196407 Click image for larger version  Name:	20260520_215404_copy_1632x918.jpg Views:	0 Size:	49.4 KB ID:	196406 Click image for larger version  Name:	20260520_215416_copy_1632x918.jpg Views:	0 Size:	54.3 KB ID:	196405 Click image for larger version

Name:	20260522_222511_copy_918x1632.jpg
Views:	25
Size:	54.2 KB
ID:	196410 Click image for larger version

Name:	20260520_214922_copy_918x1632.jpg
Views:	26
Size:	47.2 KB
ID:	196420 Click image for larger version

Name:	20260522_211227_copy_918x1632.jpg
Views:	26
Size:	58.4 KB
ID:	196411 Click image for larger version

Name:	20260522_222444_copy_918x1632.jpg
Views:	24
Size:	58.8 KB
ID:	196418 Click image for larger version

Name:	20260522_222454_copy_918x1632.jpg
Views:	24
Size:	54.1 KB
ID:	196417
      Attached Files
      Last edited by JHapprich; 07-14-2026, 04:09 AM.

      Comment

      • JHapprich
        Rear Admiral

        • Oct 2017
        • 1031

        #18
        After installation, i found the hull edges were not alignet flat with the indexing lips attached to the lower hull only, so i partially removed them and added lips to the upper hull to counter the warping. That effect would only appear on a "cold" hull and completely disappear when exposed to heat. However i was not brave enough to use a heat gun...

        Click image for larger version

Name:	IMG-20260523-WA0000_copy_1536x864.jpg
Views:	27
Size:	51.0 KB
ID:	196424 Click image for larger version

Name:	IMG-20260523-WA0004_copy_864x1536.jpg
Views:	27
Size:	51.7 KB
ID:	196423 Click image for larger version

Name:	IMG-20260523-WA0005_copy_864x1536.jpg
Views:	27
Size:	51.4 KB
ID:	196422 Click image for larger version

Name:	IMG-20260523-WA0006_copy_864x1536.jpg
Views:	26
Size:	48.0 KB
ID:	196426 Click image for larger version

Name:	IMG-20260523-WA0012_copy_1536x864.jpg
Views:	27
Size:	56.8 KB
ID:	196425 Click image for larger version

Name:	20260524_163308_copy_1632x918.jpg
Views:	28
Size:	63.5 KB
ID:	196427 Click image for larger version

Name:	20260524_120328_copy_1632x918.jpg
Views:	28
Size:	62.4 KB
ID:	196428
        Click image for larger version

Name:	20260529_192007_copy_918x1632.jpg
Views:	27
Size:	54.1 KB
ID:	196432 Click image for larger version

Name:	20260529_235354_copy_918x1632.jpg
Views:	28
Size:	55.3 KB
ID:	196429 Click image for larger version

Name:	20260529_235347_copy_918x1632.jpg
Views:	26
Size:	55.2 KB
ID:	196430 Click image for larger version

Name:	20260529_235340_copy_1632x918.jpg
Views:	27
Size:	63.2 KB
ID:	196431

        Comment

        • JHapprich
          Rear Admiral

          • Oct 2017
          • 1031

          #19
          To lock the hull halves, i installed a piece of aluminum tubing in the forward indexing lip on the lower hull. A threaded brass bar was that glued down into the bow on the upper hull. A cylinder head M3 bolt would fit into the tube tightly to secure both hull halves. The load only stresses the indexing lips while the bolt only prevents the hull halves from sliding open.

          Click image for larger version

Name:	20260525_200506_copy_1632x918.jpg
Views:	26
Size:	54.9 KB
ID:	196436 Click image for larger version

Name:	20260525_200451_copy_918x1632.jpg
Views:	28
Size:	59.8 KB
ID:	196441 Click image for larger version

Name:	20260526_175424_copy_918x1632.jpg
Views:	28
Size:	50.2 KB
ID:	196435 Click image for larger version

Name:	20260526_211119_copy_1632x918.jpg
Views:	27
Size:	49.6 KB
ID:	196434 Click image for larger version

Name:	20260526_181400_copy_918x1632.jpg
Views:	25
Size:	41.1 KB
ID:	196442 Click image for larger version

Name:	20260526_211113_copy_1632x918.jpg
Views:	27
Size:	55.8 KB
ID:	196440 Click image for larger version

Name:	20260526_213328_copy_918x1632.jpg
Views:	27
Size:	58.4 KB
ID:	196437 Click image for larger version

Name:	20260526_211142_copy_1632x918.jpg
Views:	25
Size:	48.5 KB
ID:	196439 Click image for larger version

Name:	20260526_213348_copy_918x1632.jpg
Views:	26
Size:	51.5 KB
ID:	196438

          Comment

          • JHapprich
            Rear Admiral

            • Oct 2017
            • 1031

            #20
            Test fitting the planes. As mentioned, they will need further adjustments to match the original.

            Click image for larger version  Name:	20260528_233405_copy_1632x918.jpg Views:	0 Size:	65.8 KB ID:	196444 Click image for larger version  Name:	20260529_000906_copy_1632x918.jpg Views:	0 Size:	57.5 KB ID:	196445 Click image for larger version  Name:	20260529_001053_copy_1632x918.jpg Views:	0 Size:	58.2 KB ID:	196446 Click image for larger version  Name:	20260529_000818_copy_1632x918.jpg Views:	0 Size:	62.3 KB ID:	196447 Click image for larger version  Name:	20260529_001042_copy_1632x918.jpg Views:	0 Size:	61.9 KB ID:	196448

            Comment

            • JHapprich
              Rear Admiral

              • Oct 2017
              • 1031

              #21
              As can be seen, i made a flat desk/jig to ease checking symmetrie. Changes to the sternward deck were made and the cones were off both horizontally and their cross-sections. Now, they are aligned yet ovoid, and further grinding will most likely cause perforations.we'll see...
              sternward deck transition will follow.

              Click image for larger version

Name:	20260606_173040_copy_918x1632_1.jpg
Views:	26
Size:	56.1 KB
ID:	196455 Click image for larger version

Name:	20260606_173214_copy_918x1632_1.jpg
Views:	26
Size:	54.3 KB
ID:	196454 Click image for larger version

Name:	IMG-20260610-WA0007_copy_864x1536.jpg
Views:	27
Size:	54.9 KB
ID:	196452 Click image for larger version

Name:	IMG-20260610-WA0008_copy_864x1536.jpg
Views:	26
Size:	59.5 KB
ID:	196451 Click image for larger version

Name:	20260706_101642_copy_918x1632_1.jpg
Views:	26
Size:	54.1 KB
ID:	196450 Click image for larger version

Name:	20260606_173004_copy_918x1632_1.jpg
Views:	28
Size:	61.3 KB
ID:	196456 Click image for larger version

Name:	20260706_101718_copy_918x1632_1.jpg
Views:	26
Size:	56.8 KB
ID:	196457

              Attached Files

              Comment

              Working...