Random mods. | General Syma S107 Information | Syma Forum

Hello, I hope you don't mind, but since i cant progress the rf mod until the postman comes, i thought i would work in some other mods, here's what i have so far.

The transmitter mod: The plastic arround the analog stick limited the movement of the stick, so that it couldn't turn at full speed whilst at full acceleration, however when the front cover is removed the helicopter is capable of turning at full speed. The same results can be obtained by filing the analog sticks hole square.

The Gyroscope mod: this mod should allow the R5 board to be able to turn faster than normal, there are two potential ways to accomplish this mod, the first and simplest could be to tilt it forwards so it becomes less sensitive to vertiacal rotation.

The other method is depicted below, by using a voltage divider with two matching resistors, the turning speed should double. however there is very little area to solder to on the board, so may be difficult to accomplish.

 Please feel free to suggest any improvements, or other mods that you think should be done.

Thanks for the very nice video i've done the spring removal on the throttle, and have been wondering how to increase the resistance on the stick, that's a ingenious way to resolve it.

However, I was referring to the stick on the right, with the circular hole. If you file it square it seems to increases the maneuverability of the helicopter whilst at full speed.

Thanks, I hope that you find the mod useful . And I'm not bothered about credit, I just want to help people get more fun out of their stuff.

Before you do the mod, just try controlling the helicopter when there is no cover on the transmitter, essential you will get the same effect on handling.

I found this on youtube a while ago, I tried it myself and couldn't believe that it worked

Here's another mod of sorts.

I'm always cautious when it comes to Li-po's, as I've had a few problems with them in the past, and now I'm slightly paranoid around them

The electronics inside the USB charger, on examination are really basic. So i decided on finding a alternative (safer?) way of charging. Using what I had on hand, the chargers I've adapted to be capable of charging the S107 are:

A Ultrafire WF-139 or WF-188 – this gives a nice 300ma fast charge, and also a basic LED that indicates that its fully charged, capable of charging two helicopters at once, and seems to be safe if left on for longer than needed.

A Lipo Balace charger – These are fantastic chargers, they can charge almost ANY battery you through at them (Li-po, Li-ion, Li-Fe, NiMh, Nicd, SLA), they have a LCD screen that tells you how many mAh your battery has taken  and a audible alarm that it has fully charged. Theoretically capable of charging up to 6 helicopters at once.

However this type of charger has gone the same way as the S107 itself, and there are so many clones you cant tell which one is a original. I highly recommend >this<. AVOID iMAX at all costs, they are mostly Clones, OF A CLONE, as I found out the hard way 

This time its another mod, on the battery.

This simple patch allows the battery charger port to have direct access to the battery without the diode, at all times.

The reasoning behind this mod, is the safety features on the charger socket are causing me problems when trying to use the discharge function on my balance charger.

I also decided that I would like to still access the battery once the helicopter is turned ON. As a result of this i can now have the potential to piggyback a removable battery into the socket, or use it to power a removable 3v external device, etc.

Hopefully some fun stuff can be made as a result of this simple mod

Edit: This works great with my balance charger, I did a full discharge cycle, and have recharged with the balance charger. Now it is returning a more realistic battery capacity of 156mAh, shame it takes about 1 and a half hours to charge at 100mah though.

However it did get just over 6minutes of (constant movement) flight without any other mods.

Here are some pics of the chanel reverse mod, It allows the Silverlit propellers to be used without flipping the tail over.

Edit:does anybody know how to make the images work, without everyone having to resize them when they want to look at them?

Edit: FIXED (hopefully) :P