Launch-Programming Robot in Square

Our class is in using Modkit for Vex to program our PLTW Launch robots to move in a square. The first two lines of code work with the robot, but then the robot moves jerkily as if the (same) code is being read at different times by the brain. I have tried re-working the code, updating the robots, and all of them are having the same issue.

Hi Mrsmorehead,

We’re sorry that you have encountered this issue. To help resolve this situation, it would be best to see the Modkit program in question.

If you would like to avoid posting screenshots of your Modkit program publicly here on the VEX IQ Forum, you can directly contact Modkit for VEX Technical support with your program. To do this, when you are in Modkit for VEX please go to the Project drop down menu, and then select the Save to Desktop option. Then you can send this file to Modkit Technical Support by either of the following methods;

Via web page at:
Via email to:

If you have any further questions or comments, please feel free to contact our VEX Technical Support folks at or by calling +1-903-453-0802.


  • Art