Hydraulic Lateraly Retracying Dive Dlanes A must see!

[Guest]

Check this out ,I just finished this very cool adition to the Alfa 705 5ft.
Be sure to hear the action ,the clicking sounds are the moveing of the planes radio stick by me,its actuly smoother than in the video!.
Done with hydraulics and and a single servo no other elictronics just watch the movements senter the stick which the radio does any way and turn the knob to retract turn the otherway to extend ,center the knob to stop at any position. water is the fluid,syringe and wiper motor due the job,cost under 25.00 bucks! http://s82.photobucket.com/albums/j278/ ... CF0001.flv

[greenman407]

That is absolutely beautiful Dave!Where

That is absolutely beautiful Dave!Where do you find the time?

[Guest]

The components where all installed

The components where all installed during the main build and this mod only took about 1/2 a day.I only had to install a stronger pump.Say Mark did you get your glitch problem solved?
That is what is nice about the new pump it needs no suprestion.
Merry Xsmas to all !

[greenman407]

Hi dave, well kinda, check

Hi dave, well kinda, check out my posts on it under general and RC modeler. Ran it today and finally got it to fly level without broaching. However the glitching is still there. The one common denominater in this is the Subtek mixer. Some day I will change it.

[hakkikt]

This is a very interesting

This is a very interesting system, in fact I have been trying to put something like this on paper for my 1/144 Seawolf. However I have been thinking along the lines of a linear servo pushing a larger syringe, which would (via fluid) push 1-2 smaller syringes for the diveplanes. Getting a little cluttered in there, on paper already : )
So I take it you are using a syringe as the piston moving the diveplanes and a pump to push water around (the water coming from the outside)?

[Guest]

http://www.postimage.org/aV3opJAS.jpg

http://www.postimage.org/aV3opTzr.jpg

http://www.postimage.org/aV3oq7xi.jpg

http://www.postimage.org/aV3oqa1r.jpg

http://www.postimage.org/Pq33TyG9.jpgIn these pictures the single









In these pictures the single syringe operates the 2 diveplanes to extend or retract.Cut the ends off a syringe and use 2 of the plungers cut off at about an inch so that there is a socket for the dive plane shaft ,epoxy the stopper in another syringe so that a perfect mold is made then use them in the double cut syringe.At the center of the syringe drill a hole fore the hose conection a brass 1/8 barbed fitting that way a double acting actuator is made from one syringe and the planes rotational axis is retained.In one picture the servo is connected to the syringe via a bearring ring so that the actuator moves and hence the extended planes at once and smothly all in plastic pvc and syringe.
This is a sealed system that means that the fluid must go to another holding resevoir or in my desiegne another syringe of equal size any place in the sub as long as its not in a dry space as it would cause an inbalance.Or it could for instance actuate retractable cleats !Always there is another use for the counter force or fluid.
The above system can also be used to preciesly ballance a sub as well,and not only 2 syringes but as many as 6 large ones depending on the pump used.
I have found that by far the best cost efective and no em produsing pump is the one from VDO used for washing windshields on Volvos and BMWs available on Ebay for about 25.00$ They are also available at Lecma RC Ill post a picture.
The 3 pumps showed in the picture have been replaced with the above pump and works 10 times better without having to surpress it ,I gues there already surpresed,and the pressure is much greater without blowing the silicone lines off.I might install a presure switch to turn the pump off at the end of each stroke,but not necessary.Also this pump can be used in the wet area!
Believe me this is the way to go because its cheap, simple,reliable low maintenance and very realistic way to do something in a RC sub that was prity tough before.It can be scaled down for smaller subs as well ,just need one channel in iether 3 pos switch or a variable.

The aplications are endless with this simple system in iether closed loop or sealed or open as my Alfas 705 main masts operate on an open cicuit,where water from the pond is used to operate the masts.

Stay tuned for more updated

Dave Amur Ship Yard

[Guest]

Picture nomber 2 shows where

Picture nomber 2 shows where the syringe resevoirs are and the upper one is for the dive planes the lowe for the one single verry tall radio mast actuator made from Kand S tubbing also that works well.