gearbox dissembled,the front case is no longer needed (the one with the large steel bush).
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
Search
Most Viewed Topics
Statistics
Our users have posted a total of 12425 messages in 1980 subjects
We have 1005 registered users
The newest registered user is Les
Similar topics
+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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°61
Re: Piston Ballast Systems
gearbox dissembled,the front case is no longer needed (the one with the large steel bush).
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°62
Re: Piston Ballast Systems
rear case with the ideller shaft and bronze bush,this will be used as a drilling template.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°63
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°64
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°65
Re: Piston Ballast Systems
another view
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°66
Re: Piston Ballast Systems
the second hole drilled.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°67
Re: Piston Ballast Systems
now place the gears on the new gearbox plate and check that the mesh feels ok.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°68
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°69
Re: Piston Ballast Systems
now transfer the calipers to the brass gearbox plate mark centre pop and drill another 2.5mm as shown.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°70
Re: Piston Ballast Systems
now mark a line and cut of at around three inches,as shown.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°71
Re: Piston Ballast Systems
now cut another plate the same as the first.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°72
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°73
Re: Piston Ballast Systems
holes transfered to second plate.
salmon- AMS Forum Owner
- Posts : 312
Join date : 2011-09-02
Age : 64
Location : Las Vegas, Nevada - USA
- Post n°74
Re: Piston Ballast Systems
Nigel,
Thank you!
This is so exciting!
Peace,
Tom
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°75
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°76
Re: Piston Ballast Systems
now open up the third hole in both plates to 10mm to take motor sholder.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°77
Re: Piston Ballast Systems
now tap the bearings into the first hole on both plates with the shoulders faceing inward(towards gears).
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°78
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°79
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°80
Re: Piston Ballast Systems
shaft and gear seperated,shaft is not used.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°81
Re: Piston Ballast Systems
next find a 4mm brass nut and a small file.
nigele(ADMIN)2- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°82
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°83
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°84
Re: Piston Ballast Systems
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- AMS Chairman
- Posts : 1107
Join date : 2010-11-06
Age : 70
Location : Braintree, Essex
- Post n°85
Re: Piston Ballast Systems
counter sink the motor screw holes on the inside faces.
Fri Mar 15, 2024 4:36 pm by david f
» WW2 mini sub build
Tue Mar 12, 2024 1:56 pm by geofrancis
» Not the hobby I expected :)
Sun Mar 10, 2024 6:30 pm by cat
» 868/915 Mhz as a viable frequency for submarines.
Wed Mar 06, 2024 4:50 pm by tsenecal
» Sheerline gasket material
Mon Feb 19, 2024 9:24 pm by Michaelc
» Choice of CAD software and Printer for 3D printing
Thu Feb 15, 2024 1:53 pm by david f
» Engel Nautlus
Tue Feb 13, 2024 9:15 am by palmert6
» RF 27/433MHz maximum depth in pools (1-5 ppm chlorine, 6-8pH)
Thu Feb 08, 2024 2:05 pm by david f
» Arduino proportional control of a piston tank
Thu Feb 08, 2024 1:37 pm by david f