The Association of Model Submariners.

Would you like to react to this message? Create an account in a few clicks or log in to continue.

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



Join the AMS - Registered Forum users can become members of the AMS and it's free ...... To join send an email with your name , address and phone number to amstreasure@googlemail.com


For a guide to past events see the "Shows and Events" section.

Papplewick Pumping Station SUBMARINE Day. 31st March - 1st April 2024.

$$$

&&&

::::

Who is online?

In total there are 14 users online :: 0 Registered, 0 Hidden and 14 Guests

None


Most users ever online was 180 on Tue Nov 05, 2019 6:03 am

Latest topics

» Information on camouflage patterns for German seahund
Piston Ballast Systems - Page 3 EmptyFri Mar 15, 2024 4:36 pm by david f

» WW2 mini sub build
Piston Ballast Systems - Page 3 EmptyTue Mar 12, 2024 1:56 pm by geofrancis

» Not the hobby I expected :)
Piston Ballast Systems - Page 3 EmptySun Mar 10, 2024 6:30 pm by cat

» 868/915 Mhz as a viable frequency for submarines.
Piston Ballast Systems - Page 3 EmptyWed Mar 06, 2024 4:50 pm by tsenecal

» Sheerline gasket material
Piston Ballast Systems - Page 3 EmptyMon Feb 19, 2024 9:24 pm by Michaelc

» Choice of CAD software and Printer for 3D printing
Piston Ballast Systems - Page 3 EmptyThu Feb 15, 2024 1:53 pm by david f

» Engel Nautlus
Piston Ballast Systems - Page 3 EmptyTue Feb 13, 2024 9:15 am by palmert6

» RF 27/433MHz maximum depth in pools (1-5 ppm chlorine, 6-8pH)
Piston Ballast Systems - Page 3 EmptyThu Feb 08, 2024 2:05 pm by david f

» Arduino proportional control of a piston tank
Piston Ballast Systems - Page 3 EmptyThu Feb 08, 2024 1:37 pm by david f

Statistics

Our users have posted a total of 12425 messages in 1980 subjects

We have 1005 registered users

The newest registered user is Les

+13
tieratus
tattooed
treeboa
profesorul
johnrobinson
ajg141
Hermann
NicK
nigele(ADMIN)2
Tom(ADMIN)
david f
Giovanni LiCalsi
salmon
17 posters

    Piston Ballast Systems

    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 10:50 pm

    Piston Ballast Systems - Page 3 100_1615

    gearbox dissembled,the front case is no longer needed (the one with the large steel bush).
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 10:55 pm

    Piston Ballast Systems - Page 3 100_1616

    rear case with the ideller shaft and bronze bush,this will be used as a drilling template.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:02 pm

    Piston Ballast Systems - Page 3 100_1617

    returning back to the brass strip,at the intersection of the two line previously drawn centre pop and drill a 2.5mm hole.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:15 pm

    Piston Ballast Systems - Page 3 100_1618

    Place the idler shaft in the hole,place the gearbox rear plate on the shaft as shown,drill a second 2.5mm hole using the old gearbox plate as a template (drill through the hole previously marked with an arrow insuring that the hole is on the centre line, I centre pop through the hole just to help keep the drill on the centre line).
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:18 pm

    Piston Ballast Systems - Page 3 100_1619
    another view
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:20 pm

    Piston Ballast Systems - Page 3 100_1620

    the second hole drilled.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:24 pm

    Piston Ballast Systems - Page 3 100_1621

    now place the gears on the new gearbox plate and check that the mesh feels ok.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:31 pm

    Piston Ballast Systems - Page 3 100_1622

    for the third hole,motor drive messure with a pair of calippers between the ideler shaft hole and the large motor hole on the original gearbox,this needs to be as accurate as poss,but it is ultra crittical.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:36 pm

    Piston Ballast Systems - Page 3 100_1623
    now transfer the calipers to the brass gearbox plate mark centre pop and drill another 2.5mm as shown.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:42 pm

    Piston Ballast Systems - Page 3 100_1624

    now mark a line and cut of at around three inches,as shown.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:46 pm

    Piston Ballast Systems - Page 3 100_1625

    now cut another plate the same as the first.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:52 pm

    Piston Ballast Systems - Page 3 100_1626

    as with the first plate mark a hole 1inch from the end drill a 2.5mm hole,put the idler shaft in the hole lay the first plate on top of it clamp together and thansfer all the holes to the second plate.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Fri Apr 13, 2012 11:55 pm

    Piston Ballast Systems - Page 3 100_1627

    holes transfered to second plate.
    salmon
    salmon
    AMS Forum Owner


    Posts : 312
    Join date : 2011-09-02
    Age : 64
    Location : Las Vegas, Nevada - USA

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  salmon Sat Apr 14, 2012 8:13 am

    Nigel,
    Thank you!
    This is so exciting!
    Peace,
    Tom


    _________________
    If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 9:50 pm

    Piston Ballast Systems - Page 3 100_1629

    now take a 4mm dia prop shaft (the dia of the inner shaft),the type with top hat bearing's,knock out the bearings and put the outer shaft aside to be used later,the inner shaft is not used.
    drill out the first hole in the gearbox plates to match the bearing dia,in this case it was .250 inch.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 9:57 pm

    Piston Ballast Systems - Page 3 100_1630

    now open up the third hole in both plates to 10mm to take motor sholder.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:03 pm

    Piston Ballast Systems - Page 3 100_1631
    now tap the bearings into the first hole on both plates with the shoulders faceing inward(towards gears).
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:08 pm

    Piston Ballast Systems - Page 3 100_1632

    next take the main gear and shaft,cut a piece off tube to fit over the shaft,about an inch longer than the shaft.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:12 pm

    Piston Ballast Systems - Page 3 100_1633
    next place the shaft and gear inside the tube,put in a vise and push the gear of the shaft as shown.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:15 pm

    Piston Ballast Systems - Page 3 100_1634

    shaft and gear seperated,shaft is not used.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:23 pm

    Piston Ballast Systems - Page 3 100_1635

    next find a 4mm brass nut and a small file.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:33 pm

    Piston Ballast Systems - Page 3 100_1636

    This is the tricky bit,taking your time and insuring that you keep the nut central carefully file the round hole in the gear to a hex that will allow the brass nut to fit tightly in it,its not as difficult as it sounds the trick is to take your time,if you over do it a bit yu can gentley tap the edges of the nut with a hammer to expand it then push the nut into the gear in the vice.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:43 pm

    Piston Ballast Systems - Page 3 100_1637

    now lossly asemble the gearbox as shown place the piston shaft through the gearbox and insure that the gear train runs freely.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:53 pm

    Piston Ballast Systems - Page 3 100_1638

    take the gearbox apart again and locate the motor plate(aly one)place over the motor hole put the drill shank into the motor plate and gearbox case locate motor screw holes (long slots)with a 2.5 mm drill transfer motor holes to the gearbox as shown,then transfer to the second gearbox plate.
    nigele(ADMIN)2
    nigele(ADMIN)2
    AMS Chairman


    Posts : 1107
    Join date : 2010-11-06
    Age : 70
    Location : Braintree, Essex

    Piston Ballast Systems - Page 3 Empty Re: Piston Ballast Systems

    Post  nigele(ADMIN)2 Sat Apr 14, 2012 10:58 pm

    Piston Ballast Systems - Page 3 100_1639

    counter sink the motor screw holes on the inside faces.

      Current date/time is Fri Mar 29, 2024 12:49 am