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Flat Dean and Woodie World Wide

Flat Stanley for science and technology!

by: EtherealNinja

09-20-2008 08:41 PM

mecanum wheel force vector analysis

Papers have been moved to this link:<br />
<br />
http://www.chiefdelphi.com/media/papers/2390<br />
<br />
(Combined with kinematic analysis)

by: Ether

05-16-2010 11:07 AM

Mecanum and Omni Kinematic and Force Analysis and Programming

Mecanum and Omni wheel kinematic and force analysis and programming. Omni vs mecanum force and kinematic comparison. Bump-free mecanum roller profile.

by: Ether

05-20-2010 03:25 AM

CAN Jaguar Speed or Current Control with Current Limit or Thermal Cutoff

CAN Jaguar Speed or Current Control with Current Limit or Thermal Cutoff

by: Ether

08-17-2010 07:47 PM

by: Ether

12-01-2010 02:47 PM

joystick sensitivity (gain) adjustment

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 />
<br />
12/27/2010 updated to 2-parameter function with tunable inverse deadband<br />
<br />
06/05/2014 added piecewise linear gain shaping alternative, with tunable constants a b c

by: Ether

12-22-2010 10:07 AM

Swerve kinematics and programming

<b>calculate robot-centric and field-centric wheel speeds and wheel steering angles for a vehicle with four-wheel independent drive and independent steering (&quot;swerve&quot; drive)</b>

by: Ether

01-02-2011 10:09 PM

Simple Motor Calculator

<i><br />
</i><br />
<a href="https://www.chiefdelphi.com/media/papers/download/4881" target="_blank"><br />
<b>MCALC17b Jan28 2017 Beta 2102</b></a><br />
<br />
2x 3x 4x CIM &amp; 775Pro spec files <a href="https://www.chiefdelphi.com/media/papers/download/4980" target="_blank"><b>here</b></a><br />
<br />
<br />
discussion thread <b><a href="https://www.chiefdelphi.com/forums/showthread.php?t=154277" target="_blank">here</a></b><br />
<br />
<i><br />
please report any bugs<br />
</i>

by: Ether

01-13-2011 10:53 PM

Field-oriented control of 6WD robot

Vehicle turns and goes in the field-centric commanded direction at the commanded speed. <br />
<br />
Can be used with any skid-steer vehicle with separate control of right and left wheel speeds (eg 6WD).<br />
<br />
Driver interface shown for single 2-axis joystick.

by: Ether

01-29-2011 10:16 AM

Complex number calculator

Performs addition, subtraction, multiplication, and division on complex numbers. <br />
<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 />
<br />
Uses RPN (Reverse Polish Notation) input.

by: Ether

02-03-2011 02:05 PM

MINIBOT acceleration solution

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.

by: Ether

03-19-2011 02:50 PM

Observe Windows multitasking effect on 50Hz app

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.

by: Ether

12-02-2011 08:11 PM

Arcade Drive

<i><br />
</i><br />
<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 />
<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 />
<br />
<i><br />
</i>

by: Ether

04-05-2012 10:01 PM

Shooter Wheel Speed Control

Control shooter wheel speed without PID.<br />
<br />
Bang-Bang speed control for shooter wheel is simple, fast, accurate, stable, and requires little or no tuning.

by: Ether

04-12-2012 03:53 PM

by: Ether

05-02-2012 03:38 PM

PWM Signal Generator for Victor, Jaguar, and Talon using laptop serial port

You can easily generate a PWM signal to drive a Victor, Jaguar, or Talon using the RTS &amp; DTR pins of the RS232 serial port on an old junker laptop with an early Pentium or 486 processor.

by: Ether

06-15-2012 11:22 PM

Bezier Curves

Excel spreadsheet and Maxima macro for generating a Bezier curve, given starting and ending coordinates and slopes.<br />
<br />
Calculate the radius of curvature at every point along the Bezier curve.

by: Ether

09-13-2012 05:22 PM

Talon, Victor884, Victor888, and Jaguar speed vs torque tests

Test conducted at Whirlpool motor lab, Oct31 &amp; Nov01

by: Ether

11-02-2012 03:01 PM

CIM inrush current with Victor, Jaguar, & Talon

Tests run at Whirlpool Motor Lab Nov01 2012

by: Ether

11-04-2012 10:02 PM

Ballistic trajectory with air friction drag and Magnus

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.

by: Ether

11-29-2012 03:20 PM


Papers (46)

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