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2014-01-21 13:45:37 -0500 asked a question Problems Compiling (catkin_make) after update

Hi all, I'm on ROS Hydro (Ubuntu 12.04). I just got some updates from ROS and know I can't compile my packages.

I get this error:

Scanning dependencies of target industrial_trajectory_filters
Scanning dependencies of target moveit_controller_manager_pentaxis
[  3%] Building CXX object moveit_controller_manager_pentaxis/CMakeFiles    /moveit_controller_manager_pentaxis.dir/src/moveit_controller_manager_pentaxis.cpp.o
In file included from /opt/ros/hydro/include/ros/common.h:37:0,
             from /opt/ros/hydro/include/ros/ros.h:43,
             from /home/moises/pentaxis_ws    /src/moveit_controller_manager_pentaxis   /src/moveit_controller_manager_pentaxis.cpp:37:
/opt/ros/hydro/include/ros/forwards.h:44:27: fatal error: ros/datatypes.h: No such file or directory
compilation terminated.

Is anyone else getting this error?

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2013-11-12 08:30:06 -0500 commented question Trouble with Moveit iKFast

Alright, thanks.

2013-11-11 17:56:56 -0500 asked a question Trouble with Moveit iKFast

Hello, I am in need of some guidance.

I'm working on a 5DOF robot manipulator and trying to use it with MoveIt! I found out that its not possible to use the IK solver that comes by default. So I tried creating an IKFast solver using TranslationDirection5D, however it fails to generate the IK Solver: self.CannotSolveError('failed to find a variable to solve') __main__.CannotSolveError: 'failed to find a variable to solve' sigh...

Know I am at a point where I think I need to create my own IK Solver. So I'm asking for any hint on where to start on writing this code.

Thank you in advance.

For reference I'm on Ubuntu 12.04 64bit running Hydro.

2013-09-04 08:45:03 -0500 answered a question KDL, undefined reference to KDL::Chain

Hey! hello I had the exact same problem, but I was trying the tutorial for parsing a URDF to use the KDL library. Here is my solution: I also edit the CMakeLists.txt:

cmake_minimum_required(VERSION 2.8.3)
project(kdl_beginner)

find_package(catkin REQUIRED)

find_package(orocos_kdl)
find_package(kdl_parser)

add_executable(mykdl src/mykdl.cpp)
target_link_libraries(mykdl ${kdl_parser_LIBRARIES}   ${orocos_kdl_LIBRARIES} )

:D

BTW I am on ubuntu 12.04 running groovy

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2013-08-07 13:59:26 -0500 asked a question Writing a Hardware Interface help

Hello, I would first like to thank this great community for the excellent work that has been done here. Thanks!

I am working on a 5 DOF robot manipulator that was custom built for my master's thesis. It's hardware controller is a Galil DMC-4060 (I did not choose it). This controller has it's own programming language which is similar to assembly code, here is an example of the code:

PAA= 20000 
SPA= 20000
ACA= 200000
DCA= 200000
BG A

All this does is move one joint 20000 steps (PPA), with the command SPA 20000 we set the speed to 20000, the command ACA is the acceleration, the command DCA is the deceleration, and finally with the command BG A the command is executed. Those commands get decoded and processed at the controller.

The physical connection between the computer that is running ROS to the controller hardware is done via ethernet TCP/IP or UDP.

I have been studying several tutorials, made my URDF model of the robot, but now I am in a point that I am not sure witch direction to take. Is this a good point to start?: ros.org/wiki/ros_control (sorry could not use a real link, no karma :-(

Thank you for your attention. Kind regards Moises Estrada. IPN - Tijuana Mexico.

Edit: Forgot to mention: I am on Ubuntu 12.04 LTS 64bit, running groovy.

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2013-06-21 07:33:26 -0500 answered a question Galil Controller Hardware Interface

Hi there, I am currently in the same situation where I am developing an interface for a Galil DMC 4060, that will control a 5 DOF robotic arm.

Have you made any progress with you project? If so, can you give some advice on how to proceed with this problem.

Regards. Moises.