RamjetX Thrustmaster T3PA Load Cell Brake Mod now with Arduino Code

thingiverse

Hey Virtual Hoons! So today, I've whipped up a couple of different mounting options for a Load Cell Brake Mod in your Thrustmaster T3PA pedals. This is the physical mounting kit you'll need to hook one up. **Update:** Code has been appended to this pack. Download and extract into your arduino folder in your documents. It includes both the HX711 and Joystick libraries, which might ask you to replace the original files. Check out the picture, but here's what's in the pack: 1 x RamjetX T3PA 20Kg Load Cell Mount Back 1 x RamjetX T3PA 20Kg Load Cell Mount Front And... 1 x RamjetX T3PA HX711 Load Cell PCB Sleeve Okay, let me break this down for you all. The 3D models allow you to bolt the load cell through the 10mm bolt hole with a 5mm bolt going directly into the load cell. The slot will align the load cell and prevent it from rotating because you only have one bolt in it. It also supports the bending of the load cell from pulling the 10mm nutsert out. If you mount it on the back side, it gives you more room for your foam or rubber to compress and provides more pedal movement. You'll only need to print the back side mount. Naturally, if you mount it on the front side, you can screw it in from the back. It's really up to you. You may also need the back side mount just to support the bolt from pulling out the pressed 10mm nut housing. On my back mount pictures, I have a black cone thing from the top of the load cell - an IKEA door knob with a flat face. I used it because it was 4mm (matching the top holes on the load cell) and stepped forward enough for me to put a sticky foam pad and softer foam to make up the slack. I'll refine this later in the week, but for now, it feels good. Which load cell did you buy? You ask... https://www.ebay.com.au/itm/Load-Cell-Weight-Sensor-20KG-Portable-Scale-HX711-Weighing-Sensors-Ad-Module-ATA/263918092334 This one! And yes, 20Kg is fine. https://i.ebayimg.com/images/g/-m8AAOSw3gJZKPeJ/s-l1600.jpg A couple of pro tips while I'm getting the code together to publish: The HX711 has two modes for sample rate - 10Hz and 80Hz. This is simply moving a 0 Ohm resistor from the 10Hz spot to 80Hz. This will effectively change the speed to be quick enough to be useful for a brake. For the PCB Sleeve, I wired the Pin headers on sideways so it poked out of one end and then wired up the load cell (picture included), slid in the PCB, and just hot glued it in the end. It's free to stick to anything you want now. I also used a STRONG 32U4 Micro Arduino clone (https://www.ebay.com.au/i/112951197414). Check my other models for a holder for that PCB too! See my vibration motor mount for this mod too: https://www.thingiverse.com/thing:3381158