Logitech Saitek Trim Wheel for Flight Throttle Quadrant

prusaprinters

<p>I've wanted a trim wheel for flight sim stuff for years but the old Saitek model isn't made anymore and examples on eBay are rare and cost a fortune so I decided to make my own.</p><p>This is built with an Arduino Leonardo, some 3d printed parts, and a cheap rotary encoder.</p><p>This won't work with an Arduino Uno or Arduino Mega. It needs to be an Arduino Leonardo.</p><p>The Solidworks files and arduino sketch source code are all here to download and mess with how you see fit.</p><h3>Parts you'll need</h3><ul><li>Arduino Leonardo: <a href="https://www.amazon.com/gp/product/B0786LJQ8K/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&amp;psc=1">https://www.amazon.com/gp/product/B0786LJQ8K/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&amp;psc=1</a></li><li>Rotary Encoder: <a href="https://www.amazon.com/gp/product/B06XQTHDRR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&amp;psc=1">https://www.amazon.com/gp/product/B06XQTHDRR/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&amp;psc=1</a></li><li>6 M3x10 Screws to screw the arduino and rotary encoder into the case</li><li>6 M3 Nuts to go with the M3x10 screws</li><li>2 M4x10 Screws to screw the case to the throttle quadrant</li></ul><h3>What do you need to download?</h3><ul><li>You'll need to print case.stl and trim wheel.stl</li><li>You'll need to download trim_wheel.ino and open the arduino sketch in there and program it to your arduino. I use Arduino IDE for this. You can get that at <a href="https://www.arduino.cc/en/software">https://www.arduino.cc/en/software</a></li><li>If you want to mess with the model and remix it or whatever you can download Trimwheel_sw.zip for the Solidworks source files.</li></ul><p>How do you put this together?</p><ul><li>Print both STLs</li><li>Screw in the arduino and rotary encoder</li><li>Wire the CLK pin from the trim wheel to the PWM 2 pin on the arduino</li><li>Wire the DT pin from the rotary encoeder to the PWM 3 pin on the arduino</li><li>Wire the + pin from the rotary encoder to the 5v pin on the arduino</li><li>Wire the GND pin from the rotary encoder to any GND pin on the arduino</li><li>Attach the wheel to the rotary encoeder</li><li>Screw the trim wheel case on to the back or bottom (whichever of those surfaces the clamp is NOT on) of the throttle quadrant</li><li>Plug in the trim wheel to your computer with USB</li><li>Fire up arduino IDE and open trim_wheel.ino</li><li>Click the right pointing arrow in the tool bar to send the sketch to the arduino.</li><li>After your computer makes a couple of USB connect/disconnect noises it's ready to test in the USB game controllers control panel</li></ul><p>At this point you should be good to go. This has been tested in Microsoft Flight Simulator (2020) and when I set the elevator trim axis to the axis of the new controller (should show up in flight sim as Arduino Leonardo)</p>