Thread Tools
Mar 26, 2012, 02:34 PM
Registered User
Discussion

I need a little help finding some hardware, for a piston tank.


I am looking for some parts to make a micro syringe piston tank using a BBQ injector. But the issue I am having is finding a gear that is threaded on the inside to lift my nylon threaded bar. Could some of you suggest somewhere where I could find some stuff like that? Or at least what its called.

similar to this set up.
Mini RC submarine ballast tank test 2 (0 min 27 sec)


Trying to get my supplies together to convert an academy 1/150 boat. And I figured I could just stick a radio in it and link the control surfaces and dynamically dive it... but whats the fun in not challenging yourself

Thanks ahead of time
Last edited by asd9000; Mar 26, 2012 at 02:40 PM.
Sign up now
to remove ads between posts
Mar 26, 2012, 07:03 PM
RC sub dude
CaptainNemo12's Avatar
How about using a metal nut that will fit your threaded rod and embedding the nut inside a plastic gear?
Mar 26, 2012, 08:14 PM
Registered User
Stock Drive Products www.sdp-si.com has a vast array of gears ect. that should help.
Also try calling Precision Scale Model Engineering( the web site does not show the catalog)
Mar 27, 2012, 02:39 AM
Registered User
Quote:
How about using a metal nut that will fit your threaded rod and embedding the nut inside a plastic gear?
That's what I plan on doing if I cannot find anything else. And does metal on nylon offer better results? Just curious that statement made me wonder :P

Thanks for the help so far!
Mar 27, 2012, 07:53 PM
Man from Atlantis
Sub culture's Avatar
Looks to me like he has just drilled and tapped the main gear with a thread. Usually piston tanks use a metal spindle and spigot. For a small tank like this, you can get away with plastic.
Mar 28, 2012, 06:24 AM
TheyreComingToTakeMeAway!
derk's Avatar
best bet is to drill and tap, otherwise its a huge pain to get the nut centered on the gear properly.
Apr 03, 2012, 08:49 AM
Registered User
Rmay's Avatar
This may be a crazy idea, but how about scavenging parts from a screw type deodorant? I took one apart the other day and it looks like the parts are similar to what you’re looking for. That is if you looking for a DIY solution.
Apr 05, 2012, 12:33 AM
Registered User
hmm I ll look at one I like the idea! thx for the suggestion. I built a prototype but its belt drive... aka rubberband. and I need gears now. I just bored out and tapped a gear. Used a bearing to hold it in place and a brass screw.
May 01, 2012, 10:55 PM
Registered User

another source for threaded plastic rod


Parmesan cheese with built in grater also has a nice mechanism.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Wanted *NEED HELP* Finding Projects For Gifted Senior Builders stevster Aircraft - Electric - Airplanes (FS/W) 16 May 10, 2012 02:50 PM
Wanted *NEED HELP* Finding Projects For Gifted Senior Builders stevster Boats (FS/W) 17 Apr 01, 2012 09:51 AM
Wanted *NEED HELP* Finding Projects For Gifted Senior Builders stevster Aircraft - Fuel - Airplanes (FS/W) 15 Mar 17, 2012 01:11 PM
Help! *NEED HELP* Finding Projects For Gifted Senior Builders stevster Trader Talk 7 Mar 16, 2012 04:59 AM
Discussion need help finding some plans for a build elijah4 The Builders Workshop 3 Dec 11, 2011 04:04 PM