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picaxe 18x

Why does my motors stop spinning after awhile

 

Hi all,

I am on my second (well third if you count my incomplete herbie bot) and i have completed proto work on my project board with hook up wires. My basic code thru the PICAXE 18X is to keep pin 7 and 6 HIGH while 5 and 4 LOW as triggers to the inputs of a L293D motor driver. What I find is that for the most part the motors spin for a while and then stop for no reason.

 

My L293D are directly connected to the motors with no caps in place. Could the missing CAPS be the reason my my motors halt after awhile ?  

 

 

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