View source for Extending the flat on N20 motors

[[File:N20 shaft, all flat.png|thumb|Your motor should look like this: N20 shaft, all flat. ]]
[[File:N20 shaft, partial flat.png|thumb|If your motor looks like this, you're in the right place to fix it: N20 shaft, partial flat]]
If your motor flat doesn't go the full length of the shaft (i.e., it looks like the red angry face picture to the right), this is how to fix that!

You just need to extend that flat with a hand file or rotary tool (e.g. Dremel). 

Here's a video on that: ('''Shaan Narayan to provide video''')