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robotis-scad

Tools to create frame connecting XL320 motors and various elements from the OLLO framework from Robotis. Most tools are based on segment-scad, an OpenScad library to create parametrable and linkable segments.

Dependencies:

Get started:

mkdir myfolder
cd myfolder
git clone https://github.com/jgrizou/MCAD
git clone https://github.com/jgrizou/segment-scad
git clone https://github.com/jgrizou/robotis-scad

The repository is divided in five folders:

  • The ollo folder contains constants and tools related to the OLLO framework, such as holes for rivets, thickness of elements.
  • The dynamixel folder contains constants and tools for the XL320 motors.
  • The ollo_segments folder contains a specialization of the segment-scad tools. Typically segment with predefined width, thickness, and holes.
  • The frames folder is the most useful one, it contains ready to use frames for connecting XL320 motors in various ways.
  • The specific_frames folder contains more specific frame that are used for various robots.

Each *_frame.scad file contains function for a specific type of frame. Each frame file contains small examples at the end of the file, the simplest way to run it is to open the file in OpenScad.

Most frames comes with a function starting by add_* which creates the frame and add the forthcoming segments at the opposite side of the frame.

You are invited to look and play with the code for more details, function names and arguments are usually self-explanatory. Please check the poppy-ergo-jr project to see examples of how to use these tools. Below are example of code for each frame and pictures of the resulting 3D parts.

Frames

use <dynamixel/xl320.scad>
use <frames/horn_to_horn_frame.scad>

rotate([0,90,0])
  xl320_two_horns();
horn_to_horn_frame(50);

horn_to_horn_frame

use <dynamixel/xl320.scad>
use <frames/side_to_side_frame.scad>

rotate([0,0,180]) xl320();
add_side_to_side_frame(100,2)
  xl320();

side_to_side_frame

include <ollo/ollo_def.scad>

use <dynamixel/xl320.scad>
use <frames/three_ollo_frame.scad>

xl320();
add_three_ollo_frame(50)
translate([0,4*OlloSpacing,0])
  rotate([0,-90,0])
    xl320();

three_ollo_frame

use <dynamixel/xl320.scad>
use <frames/three_ollo_to_horn_frame.scad>

xl320();
add_three_ollo_to_horn_frame(length=30, nLayer=1)
  rotate([0,90,180])
    xl320_two_horns();

three_ollo_to_horn_frame

use <../dynamixel/xl320.scad>
use <frames/U_horn_frame.scad>

xl320_two_horns();
  U_horn_frame(20);

U_horn_frame

include <ollo/ollo_def.scad>
include <dynamixel/xl320_def.scad>

use <dynamixel/xl320.scad>
use <frames/U_horn_to_horn_frame.scad>

xl320_two_horns();
add_U_horn_to_horn_frame(20)
  translate([0,MotorWidth/2+OlloLayerThickness,0])
    rotate([90,0,0])
      xl320();

U_horn_to_horn_frame

use <../dynamixel/xl320.scad>
use <frames/U_horn_to_U_horn_frame.scad>

xl320_two_horns();
  add_U_horn_to_U_horn_frame(50)
    rotate([0,0,180])
      xl320_two_horns();

U_horn_to_U_horn_frame

use <../dynamixel/xl320.scad>
use <frames/U_three_ollo_frame.scad>

xl320();
U_three_ollo_frame(15);

U_three_ollo_frame

include <ollo/ollo_def.scad>
include <dynamixel/xl320_def.scad>

use <dynamixel/xl320.scad>
use <frames/U_three_ollo_to_horn_frame.scad>

xl320();
add_U_three_ollo_to_horn_frame(15, 1.5)
  translate([0,MotorWidth/2+OlloLayerThickness,0])
    rotate([90,0,0])
      xl320();

U_three_ollo_to_horn_frame

Specific Frames

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Specialized segments for ollo robotis framework

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