Grinding Noise SOS

#1

Just Got my Mbot. Very excited. Coding rookie (just learning)
When set forward makes a nasty grinding noise?
Need some guidance
Want to this get corrected before i introduce it to my students at school.
Having a scratch club at school and students are teaching me.
Thought the bot would be the next best step.
Please Help
Thanks

#2

@Army, you have written “when set forward makes a nasty grinding noise”, can you show us what kind of program you have written? You can contact us via support@makeblock.cc

#3