“Its hard to find people that actually WANT to mow their lawn.” A more true statement has never been made. [Kurt’s] project turns an old lawn mower into a remote control lawn mower.
The first step of this build is to replace the front drive wheels with mini-bike tires which have built-in gear tooth sprockets. The rear wheels were then replaced with large caster wheels. The 12-24V DC motors and gear boxes used come from National Power Chair. While we have seen more complicated RC lawn mowers before, this project is a great way to get started. All that [Kurt] wanted was to make lawn mowing more fun, we believe that he has succeeded. This thing is very mobile and can turn on a dime. Check out the demo video after the break.
What’s next? Add a GPS, a Raspberry Pi, and a few other odds and ends. Tie it together with some clever programming and you will have your own autonomous lawn mower. Have you already created a completely autonomous lawn mower? Let us know!
Continue reading “Remote Controlled Lawn Mower Lets you Sit Back and Enjoy The Show”
[Joshua] had his old Gamecube kicking around. Rather than let it gather dust, he took it into the machine shop at Harvey Mudd College and used its body as the shell of a mobile robot. With a bit of thought, it turns out that you can fit quite a lot inside the rather small Gamecube case. [Joshua] started with a couple of R/C plane style brushless outrunner motors. These motors generally give more torque and spin slower than their inrunner counterparts. Several thousand RPM was still too fast to directly drive the LEGO tires though. He needed a gear reduction.
Gears and tight spaces usually send people running for the SDP/SI website. We’ve used SDP/SI parts before, and have found that they make incredibly accurate gears and assemblies. Things can get pricey, however, when you’re buying two of everything. In search of a solution a bit more within his college-student-budget, [Joshua] looked at radio control servos. R/C servos have some rather strong output gears, especially the metal gear variety. Even with strong gears, parts do break in crashes, so replacement gear sets are available and cheap. [Joshua] settled on gears made for Hitec servos. His next problem was finding a pinion gear for his motors. That turned out to be easy, as 64 pitch gears commonly used in RC cars mesh with metric servo gears. The final results are great. His robot has tons of torque and plenty of speed to zip around. The only thing it’s missing is a brain. Videos after the break.
Continue reading “Gamecube Robot is More Than Meets The Eye”
[Roballoba] decided to combine his love for RC planes, things that light up, and photography, and we’re glad he did. He shares his method in this Instructable for illuminating a bare styrofoam replacement fuselage for a Parkzone Stryker RC plane. There are many more amazing pictures there as well.
He used low-tack tape to lay out the LED strips on the fuselage, solder the connections, and test them. Once he was satisfied with the arrangment, he flipped the strips face down so the foam diffuses the light. The lights are powered by a 12V Li-Po battery he soldered to a deans connector. Finally, [Roballoba] covered and heat sealed everything with Doculam, a very cost-effective laminate that offers great protection and security.
He used some LED corn lights as afterburners, which is a nice touch of realism. There is a video after the break where [Roballoba] shows us the connections up close and then runs through some light show options. Another video of a nighttime flight is waiting for you in the write up.
Spent too much money on eggnog and a new console this year to be able to replicate this build? $30 will snag what you need for this smartphone-controlled paper plane we featured a few weeks back. You could always BeDazzle it.
Continue reading “UFO-looking RGB LED RC Plane Lights Up the Night, Uses All the Acronyms”
FPV flying, for how awesome it actually is, still consists of fiddling around with a remote control transmitter and either wearing video goggles or squinting into a screen. Awesome, yes, but not as cool as [Brett Hays]’s enclosed cockpit ground station. It’s a trailerable flight sim that allows you to have the same experience of flying an aircraft over your local terrain without actually leaving the ground.
The centerpiece for this build is a 42 inch flat screen TV that was picked up for $160. This was placed at the front of a large plywood and 2×2 box along with a computer joystick, throttle, and rudder controls.
The pots inside the controls needed to be switched out to match the resistance of the ones inside an old Futaba transmitter. From there, completing the the cockpit was just a matter of fabricating a few panels for a video switcher, gear retract lever, flaps. and RC radio settings.
It’s a truly amazing build and when placed on a trailer towed by [Brett]’s jeep, has the potential to be the closest thing to flying a manned aircraft you can get without a pilot’s license.
Videos of the cockpit in action below.
Continue reading “Remote Control FPV cockpit”
RC transmitters used for controlling robots, quadcopters, airplanes, and cars really aren’t that complex. There are a few switches, pots, a screen and a radio transmitter. The maker toolbox already has all these components, so it only makes sense someone would try to build their own RC transmitter.
[Oscar]’s project started by gathering a bunch of toggle switches, 2-axis joysticks, pots, tact switches, an Arduino, LCD, and a Ciseco XRF wireless module. These were attached to a front panel made of polystyrene and work on the communications protocol began.
It should be noted that microcontroller-powered RC transmitters with XBees is nothing new. There was a Kickstarter for one last year, but the final product turned out to be bit janky and full of fail wiring, We’re really glad to see [Oscar]’s attempt at a DIY RC transmitter, and hopefully we’ll see this project taken up and improved by others.
Continue reading “A DIY Solution for Controlling Robots and Quadcopters”
Of all the homemade RC Hovercraft floating around out there, this build is not only one of the better looking: it’s also unexpectedly quick. [ScratchBuiltAircraft] sourced foam board from the local dollar store to construct the hovercraft’s body and a heavy-duty garbage bag with a hole cut in the center for the skirt. Air reaches the skirt area from the hovercraft’s EDF (Electric Duct Fan — the big one on the back) which pumps the air through a rectangular hole in the base.
A servo mounted behind the fan controls the rudders, while the rest of the electronics and the battery are cleanly tucked away beneath foam body pieces. We’re not sure what kind of top speed the Turnigy motor provides, but it’s probably impressive assuming it can keep from flipping over. Watch it blast off with a bit too much lift in the video below.
For something a bit slower, there’s always the solar powered hovercraft from earlier this summer.
Continue reading “Screaming fast RC Hovercraft”
Check out this autonomous RC car which [Jason] built for the chipKIT design challenge. It’s been able to successfully navigate a planned route taking just a few waypoints as inputs.
Obviously this uses a chipKIT as the controller, the max32 to be specific. [Jason’s] write-up shows off all of the components of the design, but you’ll have to head over to his recently posted update to hear about the custom board he had spun to host them all. It starts with a GPS module, but that’s only accurate enough to give the rover the big picture. To handle getting from one waypoint to the next successfully he also included a gyroscope which provides very accurate orientation data, as well as optical encoders on the wheels for on-board distance traveled information.
We hope he’ll keep refining the design and make a trip to next year’s Autonomous Vehicle Competition.
Continue reading “Autonomous RC car navigates by waypoints”