Tutorial diy electrical quick release

I made these quick release system years ago (probably in 2012). I had to open the system to fix loose screws and thought i would take take pics while i am fixing it for posting.
It is a g25 (arc modded wheel) but it applies to G27 also

i am not going in the details of removing the steering wheel as all this info is in the internet. so let s skip that part. The usb cable has to be cut and passed through the g25 body and shaft instead of the original wire (controlling buttons and shifter paddles). you loose fonctionality of the wheel buttons and shifter. But you gain other functions endlessly with sli-pro or bodnar board or simscreen (symproject) board. I ll explain later.
In one pic below , you see i am keeping the hub of the g25. You can see 2 plugs of 2 wires each . one is a male the other female. one is male other female is to avoid wrong connections at final monting of the electrical lemo connector. These plugs connect to the 4 wires of a USB cable. You have to some sodering of the corresponding wires . Identify well which wire is which .
in this picture, the reds plugs are not enough sticking out instead of opening the g25 body , i
decided to make extensions . The extension is now too long. Make sure it sticks out 1 inch only.

let s carry on:
in the pic below , i am using an adapter made by Charlie Vischer (DSD would do also). You need a hole of about 1.5 cm of diameter in the center. Mine is ugly as i used it before in another project i dont remember it was about. I shuved the wire inside the hole. that s my first and second spacers. Notice how they are is screwed.

in the pics below , that is the quick release g25/27 base side. You see the lemo connector sticking out
lemo ref :
http://ca.mouser.com/ProductDetail/LEMO/EGG1B304CLL/?qs=/ha2pyFaduj6t6uEIU/Ag9xCjbfxEFYGgaWuO8Pzkhk6zliRM8vupg==
(male side to come) . One important thing, put a O ring rubber washer at the lemo end (this to avoid click / lock connection). If you fail to do this, you cannot anymore pull out the steering.
The elcetrical connection is still achieved but not the locking system. The steering will hold fine with the QR.
The lemo was soldered (4 pin) to the USB and glued with hot glue to the base of the quick release see below pictures
you see the same red plugs on the lemo . Make the wires a bit shorther than me.
below the quick release is installed. the purpuse of those red connector is to be able to fix something easily . It is easier to mount and unmount.

next are pics of the steering wheel with QR
the same has to be done . make sure you solder correspnding wires (green to green , white to white for data), (red to red , black to black for power)

OK this is the following of the previous post of the same topic:
here below is the QR attached to steering wheel of your choice. These are just examples. The lemo is screwed with a nut (it is threaded) to a thin metal interface (thin aluminium with a hole in the middle would do. It goes between spacers and hold with the 6 M5 screws of the quick release or spacer )
in my case, I managed to install the lemo between adapters for intance. The pics below shows how it could be done . I will open later one one of those wheel to show you. The pics speak for themself (hopefully) and give already a good idea how to do it .


another exemple:


In these 2 steering wheels, you have one with a simscreen (symproject.com). The other is a F1 wheel where paddle and clutch are controlled by a sli-pro (bodnar). That hardware is from Frex Gp. So it could be another tuto altogether . In the beginning of the thread, remember, we sacrificed the buttons and paddle of the G25 logitech by cutting the elctrical cable in the shaft. However, we regained control through the USB / lemo connector . The USB is able to control usb board of your choice . You can swap anywheel with bodnar, dsd board and have control on paddle shifte or paddle clutch or wheel encoders.
below end results :

Nice