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Flat Stanley for science and technology!
09-20-2008 07:41 PM
Papers have been moved to this link:<br />
(Combined with kinematic analysis)
05-16-2010 10:07 AM
Mecanum and Omni wheel kinematic and force analysis and programming. Omni vs mecanum force and kinematic comparison. Bump-free mecanum roller profile.
05-20-2010 02:25 AM
08-17-2010 06:47 PM
12-01-2010 01:47 PM
12/22/2010 Vary the joystick (or any signal which has range -1 to +1) response curve from linear (y=x) to cubic (y=x^3) or anywhere in-between.<br />
12/27/2010 updated to 2-parameter function with tunable inverse deadband<br />
06/05/2014 added piecewise linear gain shaping alternative, with tunable constants a b c
12-22-2010 09:07 AM
<b>calculate robot-centric and field-centric wheel speeds and wheel steering angles for a vehicle with four-wheel independent drive and independent steering ("swerve" drive)</b>
01-02-2011 09:09 PM
<a href="https://www.chiefdelphi.com/media/papers/download/4881" target="_blank"><br />
<b>MCALC17b Jan28 2017 Beta 2102</b></a><br />
2x 3x 4x CIM & 775Pro spec files <a href="https://www.chiefdelphi.com/media/papers/download/4980" target="_blank"><b>here</b></a><br />
discussion thread <b><a href="https://www.chiefdelphi.com/forums/showthread.php?t=154277" target="_blank">here</a></b><br />
please report any bugs<br />
01-13-2011 09:53 PM
Vehicle turns and goes in the field-centric commanded direction at the commanded speed. <br />
Can be used with any skid-steer vehicle with separate control of right and left wheel speeds (eg 6WD).<br />
Driver interface shown for single 2-axis joystick.
01-29-2011 09:16 AM
Performs addition, subtraction, multiplication, and division on complex numbers. <br />
Numbers may be entered as vectors in the complex plane (Cartesian real and imaginary parts), or as phasors (polar coordinate magnitude and phase). <br />
Uses RPN (Reverse Polish Notation) input.
02-03-2011 01:05 PM
Solution to the differential equation for the acceleration of a direct-drive (shaft-drive) MINIBOT up the pole. Rotor+shaft inertia is ignored. Friction is assumed to be speed-independent.
03-19-2011 01:50 PM
Small 32-bit Windows console app toggles the RTS pin of the COM1 RS232 serial port at 50Hz 75% duty cycle. With a digital storage oscilloscope, you can see how Windows multitasking affects the signal.
12-02-2011 07:11 PM
<b>Tunable Linear Interpolated Arcade Drive explanation (PDF):</b><br />
<a href="http://www.chiefdelphi.com/media/papers/download/3495" target="_blank">http://www.chiefdelphi.com/media/papers/download/3495</a><br />
<b>Tunable Linear Interpolated Arcade Drive pseudocode (ZIP):</b><br />
<a href="http://www.chiefdelphi.com/media/papers/download/3494" target="_blank">http://www.chiefdelphi.com/media/papers/download/3494</a><br />
04-05-2012 09:01 PM
Control shooter wheel speed without PID.<br />
Bang-Bang speed control for shooter wheel is simple, fast, accurate, stable, and requires little or no tuning.
04-12-2012 02:53 PM
05-02-2012 02:38 PM
You can easily generate a PWM signal to drive a Victor, Jaguar, or Talon using the RTS & DTR pins of the RS232 serial port on an old junker laptop with an early Pentium or 486 processor.
06-15-2012 10:22 PM
Excel spreadsheet and Maxima macro for generating a Bezier curve, given starting and ending coordinates and slopes.<br />
Calculate the radius of curvature at every point along the Bezier curve.
09-13-2012 04:22 PM
Test conducted at Whirlpool motor lab, Oct31 & Nov01
11-02-2012 02:01 PM
Tests run at Whirlpool Motor Lab Nov01 2012
11-04-2012 09:02 PM
Rebound Rumble ballistic trajectory with air friction drag and Magnus Effect (backspin/topspin lift/dive). For students interested in the physics, math, and computer simulation aspects of this problem. Free-body force diagram, derivation of differential equations of motion, and C pseudo-code for trapezoidal numerical integration.
11-29-2012 02:20 PM
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