Category Archives: motion control

One-Legged Jumping Robot Shows That Control Is Everything

Robots that can jump have been seen before, but a robot that jumps all the time is a little different. Salto-1P is a one-legged jumping robot at UC Berkeley, and back in 2017 it demonstrated the ability to hop continuously with enough control to keep itself balanced. Since then it has been taught some new tricks; having moved beyond basic stability it can now jump around and upon things with an impressive degree of control.

Key to doing this is the ability to plant its single foot exactly where it wants, which allows for more complex behaviors such as hopping …read more

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Posted in inverted pendulum, jumping, motion capture, motion control, one-legged, pogo, robot, robotics, robots hacks, salto-1p, slip, uc berkeley | Leave a comment

Gesture Control without Fancy Sensors, Just Pots and Weights

[Dennis] aims to make robotic control a more intuitive affair by ditching joysticks and buttons, and using wireless gesture controls in their place. What’s curious is that there isn’t an accelerometer or gyro anywhere to be seen in his Palm Power! project.

The gesture sensing consists not of a fancy IMU, but of two potentiometers (one for each axis) with offset weights attached to the shafts. When the hand tilts, the weights turn the shafts of the pots, and the resulting readings are turned into motion commands and sent over Bluetooth. The design certainly has a what-you-see-is-what-you-get aspect to it, …read more

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Posted in diy, gesture control, Joystick, motion control, pendulum, pot, robotics, robots hacks, The Hackaday Prize | Leave a comment

Simple Camera Slider Adds a Dimension or Two to Your Shots

Camera sliders are a popular build, and properly executed they can make for impressive shots for both time-lapse sequences or real-time action. But they seem best suited for long shots, as dollying a camera in a straight line just moves subjects close to the camera through the frame.

This slider with both pan and tilt axes can make moving close-ups a lot easier. With his extremely detailed build log, [Dejan Nedalkovski] shows how he went about building his with only the simplest of materials and tools. The linear rail is simply a couple of pieces of copper pipe supported by …read more

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Posted in linear, motion control, pan, slider, stepper, Tilt | Leave a comment

Nintendo Switch Gets Making with Labo

Over the years, Nintendo has had little trouble printing money with their various gaming systems. While they’ve had the odd misstep here and there since the original Nintendo Entertainment System was released in 1983, overall business has been good. But even for the company that essentially brought home video games to the mainstream, this last year has been pretty huge. The release of the Nintendo Switch has rocketed the Japanese gaming giant back into the limelight in a way they haven’t enjoyed in a number of years, and now they’re looking to keep that momentum going into 2018 with a …read more

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Posted in ir camera, Labo, motion control, nintendo, nintendo hacks, Nintendo Switch, peripherals hacks, toy hacks | Leave a comment

Derek Schulte: Path Planning for 3D Printers

[Derek Schulte] designed and sells a consumer 3D printer, and that gives him a lot of insight into what makes them tick. His printer, the New Matter MOD-t, is different from the 3D printer that you’re using now in a few different ways. Most interestingly, it uses closed-loop feedback and DC motors instead of steppers, and it uses a fairly beefy 32-bit ARM processor instead of the glorified Arduino Uno that’s running many printers out there.

The first of these choices meant that [Derek] had to write his own motor control and path planning software, and the second means that …read more

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Posted in motion control, pid | Leave a comment