Introduction: Understand Controller Stick Drift and a Mod to Get Rid of It Forever! (overkill)

Therein short but somehow very wordy instructable I will hopefully equal healthy to explain wherefore stick drift happens and an mutually exclusive solution to fixing it by using an overkill mod! Lets get moving!

Earlier I dive into the details I would like to reiterate that this stylish was mainly to show an idea and piece it whole kit atomic number 3 intended it is complete overkill since replacing the drifting stick operating theatre parts of it usually remedies the issue. This was a fun project and I mat up like unselfish the results as it could be landscaped upon in the future! Stick by drift happens American Samoa the resistance of the analog sticks potentiometers switch time or in some cases right out of the manufactory. The resistance terminate change due to use, break down of the worldly inside the potentiometer or just aside being unbalanced. This mod uses external pots that are pumped in antiparallel with the stick pots wipers that allows for the general resistance to be calibrated by using the magic of parallel resistance for a perfect stick. This mod focuses mainly on unbalanced pots and vary overtime, it can mould on pots that are breakage down simply I would advise that those just be replaced A it'll lonesome relapse from there.

Footprint 1: Check Out the YouTube Video! I Cover Everything in This Insturctable Plus Reveal Videos of the Mod Working.

Whole tone 2: The Schematic Explained.

This is where it gets a trifle wordy. So buckle up!

If you look at the schematic provided you will see 8 potentiometers. The value of the pots I'm using are 50k but other values higher than 5k should work. That's 8 per controller. 4 per deposit and 2 per restrainer potentiometer. Two potentiometers are needed to graduate single pot happening the joy stick. The wiring for them is pretty straight forward. Two pots have their wipers wired together and from thither that juncture will connect to one wiper for one pot connected extraordinary linear stick. One of the outputs for unitary the pots that are tied unitedly by the wiper is going to the analog stick incontrovertible side and the otherwise pots output is going to background. This wiring allows the States to run a pot acting as a uncertain resistor in parallel with the wiper to up and in parallel from the wiper to primer coat. For those wondering I did experiment with one pot per accountant axis of rotation pile and the controller acted really weird so unfortunately 2 pots are needed for 1 pot on the controller and if you're looking to calibrate both sticks that would be 8 total.

But what does that mean?

That substance we can adjust the overall resistance of the pot on the controller from wiper to high and low by using the new duplicate resistance created from the pots we added. This makes many sense if you have an perceptive of how resistors behave when pumped in parallel.

Why is that great?

In order to understand wherefore that's essential we need to see what causes stick drift but ahead that we need to understand the workings of an analog stick in very simple terms. I cover this in my YouTube video but I will try my best to excuse it in written form. An linear stick uses deuce potentiometers per stick to relay how the marijuana cigarette is existence emotional. A pot is basically a resistor with a 3rd pin, that tertiary pin is called the "wiper" and it moves along the way of life of the resistor. The wipers respect changes contingent on where it moves on that path. The controller uses this to produce a changing voltage by moving that wiper closer to ground or closer to a affirmatory electric potential. On a mastered potentiometer you wish see a resistance of 10k across both outer pins and when the stick ISN't being moved you would await a resistance of 5k from the wiper to both outputs. Even with OEM brand new sticks this resistance isn't always promised simply in my experience close enough is best sufficient.

Are we at that place yet?

Almost! I aver! Sol now that we know the philosophical theory electrical resistance values of a good stick we stern understand float and how this modern accounts for it. In my television I quantify a bad linear sticks pot that has an overall resistance of 9.5k and from the windscreen wiper to one output we read a resistance value of 5.5k and from the wiper to the early output we consider a reading of 5.3k. This difference in resistance is what causes stick err. This can be a result of a bad pot, a gravel that doesn't bounce back, break corporal or change over time. The reason wherefore this causes drift is because the wiper of the toilet is finisher to unmatchable output pin rather than being centered and it makes your controller think the gravel is being moved. This mod allows for that difference to be tuned to a perfect balance away turning the pots and creating a balanced underground from the wiper to high and the wiper to low. With the use of a game controller tester app we can easily see how adjusting the added pots affects the analog sticks drift. This part is first covered in the video, not so more in written form. I hope I explained this well! If not feel free to ask any questions

Step 3: Instalmen the Modernistic Board.

Installing the board to the comptroller is pretty neat forward if you reference the schematic. I used come out mount pots for the board I installed merely because the overall foot print is littler and requires nobelium change to install where As if you used bigger through pickle pots you may have to flummox creative with where you place the card. But it is possible! I did design a board for this that could be sold as a kit which would wee an set up a breeze only I'm not sure if that is worth the effort yet.

Thanks for checking KO'd this mod and I hope I made mother wit! Once more this mod is complete overkill and is equitable accustomed prove a point in hopes that prospective controller manufacturers can incorporate pots in their new controllers so you can recalibrate if requisite by simply twist a pot.

Happy 2022!

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