Replacement brake for kid's Micro 3-wheeled scooter

My daughter's brake fell off and I thought it would be a good occasion to fix it with her.

I designed the new part with openscad and printed it on my Makerbot. It probably makes sense to print laying down flat, so the layers are vertical (I didn't).

To replace it, you need to:

• unscrew the top part and open it
• cut the brake opening in the cover wider (the printed part is a bit wider than the original part, so you'll need to cut it open. I did it with a pair of pliers)
• fix the new part using the same screws

I hope it holds on.