RC Rescue Recovery Boat Part #7 360 degree servo modification

I want my rescue/recovery boat to have an arm that it can use to capture the boat it is trying to recover and I want it to be able to store the arm at the back of the boat so that when it is towing it can go forwards. In episode 6 I showed that the standard amount of rotation on a servo was a bit limited so today I modified it for continuous rotation. There are plenty of videos on the subject on YouTube already but as I needed to do it for my boat I filmed it.

Main components
-
2 x 2.2k ohms resistors
Plastic pop bottles
Expanding foam
Hair Drier motors
Propeller from garden fan ornament

Main Tools
-
Hot Glue Gun
Sharp knife
Soldering iron

Filmed using FujiFilm FinePix S4800
Edited using Serif MoviePlus Starter Edition

Merchandise - Check both of these links if you are interested as the prices will vary and the shipping charges will be different.

[seandoofer]

This works well on analogue servo's, however on digital servo's the servo will tend to take off at full speed as soon as you apply control input, due to the algorithm within the processor.
One nifty thing you can do similar to this is replace the fixed resistors you put in with light dependant resistors, using the servo tester you have a device that seeks light, great for aiming a solar cell.

[Martin-mzne]

Hi Grandad, love your works. Btw. you can remove hot glue easily by using denatured alcohol.

[ETHANGAMINGXDDSX]

Hey grandad can you make a tripple engine plane

[Dukey]

Hey Grandad. Could you modify two servos for continuous rotation, then take the circuit board and motor and use them in a remote control car, where each motor controls one wheel. You could have something at the front which allows it to both turn and go forwards and backwards. If that makes any sense. Thanks.
P.S. I won't be able to respond as I am going on holiday tomorrow :)