robotics 'SCENE' CAD Model Converter

[treeewq]

I just installed labview 2014 w/ robotics module. I am trying to implement my own simulated environment and can't find the CAD Model Converter vi. I looked in the directory and it isn't there. Where can I find it?  I reinstalled the software twice. Or how can I convert to .ive file?

Thanks,

Rw

[treeewq]

In reviewing

http://zone.ni.com/reference/en-XX/help/372983F-01/lvrobogsm/robo_sim_environment/

I also am having a difficult time understanding creating .xml files. Can anyone provide any assistance.

Thanks for all your help.

rw

[chipsahoying]

Hi treeewq,

Have you seen these documents yet?  They might be helpful:

http://zone.ni.com/reference/en-XX/help/372983F-01/lvrobodialog/robo_model_importer/

http://www.ni.com/tutorial/14780/en/

[treeewq]

Hi:

Thanks for prompt reply.

I am looking for a way to create or import a scene or custom track for robot simulation model, not to make a robot. Can anyone help?please.

Thanks for all your help.

[chipsahoying]

Ah!  I might have found a few more useful resources for that...

http://www.ni.com/white-paper/14133/en/

If you scroll down a bit, you'll see that there's a wizard for the Robotics Environment Simulator...

 

Here's a little more information on it:

http://zone.ni.com/reference/en-XX/help/372983F-01/lvrobodialog/robo_sim_wizard/

http://zone.ni.com/reference/en-XX/help/372983F-01/lvrobogsm/robo_sim_creating/

[treeewq]

Your right. I followed your advice and was able to add the environment and with much less trouble then the first help file I referred to. Thanks a bunch!!!

I also have another question.

I am trying to interface a photoresistor sensor to the robotics kit 2.0. I know it has the capability. I need to access a recordable input so that when the robot goes over a black surface the voltage will change from 0v to 5v or I could go the other way from 5v to 0v. All the while I am recording the path the robot takes.

Any suggestions?

Thanks again for info.

[chipsahoying]

Check out the User Manual for the NI sbRIO-9632 (Figure 9) - it shows some of the analog inputs that you might be able to wire in to.

[chipsahoying]

Here's a link: http://www.ni.com/pdf/manuals/375052c.pdf

[treeewq]

Thanks for all the helpful info.

In motion travel do you know the smallest margin of error that can be obtained?

For instance; Can I set a distance of 0.0004 by setting a velocity of 0.4 for a 1 second duration?

How is the motor driven, Is it pwm or is there a closed loop controller that takes advantage of the motor encoders?

So if 400cnts/rev, 4"dia wheel  the min dist available is pi*d/400 0.031". How much error can there be ie if I need to travel 1200" +/- within what reasonable distance should I reach it?

thanks again.

[chipsahoying]

Typically these motors are controlled by PWM.

As far as the error, you may need to do some experimentation to determine the accuracy, as it might vary from robot to robot, according to battery power, surface that they are being used on, etc.