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* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



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*2021 AND SOME EVENTS ARE BEING PROPOSED. Keep them coming and let us know the details!

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(CANCELLED in 2020) Submarine, Boating & Sailing Weekend, Norwich MBC, Weekend of 25,26th July

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Bournville Sub Day. Sept 2021 is looking likely. More details TBA.

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Barrow in Furness Regatta and Sub day. Maybe in Sept 2021. Details TBA.

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New project - Neptune EmptyToday at 11:54 am by ex docky

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The newest registered user is armchairsubguy

    New project - Neptune

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    Dr.Schmidt
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    New project - Neptune Empty New project - Neptune

    Post  Dr.Schmidt Thu Mar 24, 2016 11:27 pm

    I guess I already have posted some drawings of my fantasy boat project, which is loosely based on a 209 type. This is a project that I'm slowly starting right now. After the extremely complex U-1 and the still very complex Nautilus build, the modelers heart longs for something much more simple. This is going to be it...a small boat with WTC, single screw, no milled parts (with exception of the hull masters).  

    It's going to look somewhat like that:

    New project - Neptune Neptune_zpsogorieva

    New project - Neptune Neptune-2_zpslabgbcho


    I'll kick off with the WTC. All very simple. The structure parts were 3d printed. I'll make silicon moulds based on them and then cast PU parts. The dice system will use a peristaltic pump and an inflatable rubber tank.

    This si the design::

    New project - Neptune WTC_zpsebnrqajw

    And the first 3d parts arrived today....they are green because I ordered them on St.Patrick's day and green plastic was cheaper that day ;-)

    New project - Neptune DSC02117_zpsmp7pgsvd

    Bajonet catch fits tight:

    New project - Neptune DSC02121_zpsyzyx3azg

    New project - Neptune DSC02122_zps43kbsuhu
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    Dr.Schmidt
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    Post  Dr.Schmidt Fri Apr 01, 2016 6:29 pm

    And here we go: To make reproduction easy I want to cast the structure parts using PU resin. Therfore I have to make silicon moulds from the masters. Glue the masters to a flat board, frame.....

    New project - Neptune IMGP0494_zpsmnynqdvi

    Cover everything in 2K silicon.....

    New project - Neptune IMGP0497_zpsdtazh6yp

    and we have a mould.

    New project - Neptune IMGP0498_zps5ww8ddw4

    And the first cast parts.

    New project - Neptune IMGP0499_zpscenqefbf

    Couldn't be easier.

    Moulds for the front and back bulkheads are next.
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    Dr.Schmidt
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    Post  Dr.Schmidt Sun Apr 03, 2016 6:48 pm

    As promised, the silicon moulds for the front and aft bulkhead are done, and the first parts are cast:

    New project - Neptune IMGP0502_zpswcudc1u2

    New project - Neptune IMGP0504_zpsvjf6fhd6

    New project - Neptune IMGP0505_zpshevzhej6

    The bajonet catch fits tightly:

    New project - Neptune IMGP0506_zpsryqlkpy6

    New project - Neptune IMGP0507_zpsez1c5x4x

    The counterpart is already glued into the WTC tube:

    New project - Neptune IMGP0508_zpslvz0mmsh

    And complete:

    New project - Neptune IMGP0509_zpshrbkv6uy

    Next is the inner structure...
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    Dr.Schmidt
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    Post  Dr.Schmidt Mon Apr 04, 2016 9:05 pm

    Well, a quick snap together of the inner structure:

    New project - Neptune IMGP0510_zpsyunoffwl

    The end plate of the peristaltic pump has been trimmed to fit the PU cast supports:

    New project - Neptune IMGP0512_zpsgrme7bf1

    Everything is held together by two 4mm diameter GRP rods and a 5 mm diameter brass tube, which also serves as water intake for the pump:

    New project - Neptune IMGP0513_zpsodjsqlk3

    Well, basic inner structure done in about 1 hour - had worse deals than that:

    New project - Neptune IMGP0514_zpsc7no6j9h
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    Dr.Schmidt
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    Post  Dr.Schmidt Fri Apr 08, 2016 6:55 pm

    During the week I glued together the part of the inner strcuture. The pump is screwed to the support frames. Behind it sits the pump controller on a 2 mm thick GRP board. The free space will hold the rubber sack for the water. Then the LiPos and behind them the two servos for the aft planes.

    New project - Neptune DSC02124_zpsm5yyesgq

    New project - Neptune DSC02126_zps5juqbutb

    New project - Neptune DSC02127_zpsoduqdz00

    New project - Neptune DSC02128_zpsrxgyusuk

    New project - Neptune DSC02129_zpsootcujuo
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    Dr.Schmidt
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    Post  Dr.Schmidt Sat Apr 16, 2016 5:41 pm

    Slowly everything falls into place. The dive controller is screwed in place and I started wiring the whole thing:

    New project - Neptune IMGP0517_zps6kwmgavt

    The hoses are hooked up. The overpressure switch is new, not the one I got with the controller, as latter was too big. The new one fits tightly into place below the dive controller. The hose to the pressure switch starts in a T nipple and is routed over the pump motor to ensure that no water reaches the switch. And it looks cool....

    New project - Neptune IMGP0518_zps6jwcphuj

    The battery rest on two 2 mm thick GRP planks:

    New project - Neptune IMGP0520_zpsoiigz9ni

    This way the battery can easily be fixed with cable ties:

    New project - Neptune IMGP0521_zpsb2hef4ot

    The gap between battery the GRP deck has the advantage, that in case anything gets wet, the battery can easily dry. And the gap is well suited to route cable ties to fix additional gear:

    New project - Neptune IMGP0522_zpsjuw3u3f5

    e.g. the receiver. It will simply sit on top of the battery:

    New project - Neptune IMGP0525_zpsusyzptjf

      Current date/time is Thu Apr 22, 2021 12:22 pm