MyRCCar Center Diff. Remote Locking System

thingiverse

Hi again everyone! This time I've developed this thing as a "plugin" to the MyRCCar MTC Chassis, which means you can plug it in without having to reprint some of the existing parts. At last, I can do something interesting with my 3CH transmitter!!! Take a look at the new video where I try to show the difference between using it ON/OFF, how it changes with Channel 3, and how it fails to change sometimes. If you want to see the center diff fully working (not locked), check out the previous video. The thing works with one moving gear that connects or disconnects the front and rear central diff vases. If the car is stopped and you try to connect it, you can fail if the gears aren't aligned. However, if you do it while moving slowly, it works correctly. You'll need four 5x10x4 bearings, four M4 3-5mm grub screws, one 3x20 mm rod, one M3x8 screw, and two counter-sunk M3x16 mm screws, the servo screws, and something to join the servo arm with the mechanism. I used part of a "clip." Of course, you'll also need the 9g microservo. To mount it, you only have to free the central right bar, plug in the new thing, and replace the screws coming from the bottom with 6-8mm longer ones and screw the central side bar back in place. Unfortunately, I didn't find a better position for the servo yet, so it's more exposed. All the gearing is Mod1, and I made it mostly using my own Motor Pinion customizer in combination with my normal CAD programs. The servo is a TowerPro 9g microservo that I had lying around; I think it's one of the cheapest options available. I consider this the "most recent chapter" about the MyRCCar MTC Chassis, so please read the rest of the "book" first! I know it's hard to believe that it works and will probably need some improvements to make it last. Anyway, I hope you give it a try when you have your MyRCCar MTC Chassis ready and working. If you're interested in the whole project and think this could be your new hobby (3D printing and/or designing functional customized 3D printable RC cars), please join the MyRCCar Group and don't forget to introduce yourself!