Alarmclock with an old Android Phone

My old phone serves me as an alarm clock with this case instead of staying in the drawer.
A Desire HD fits almost perfect in this case. Modify the scad file for your phone.

The screen stays on while charging when you follow this instructions
1. Open the settings
2. Click on About device
3. Click on Build number 7 times
4. Go back to settings screen and you will see Developer options. From here you can access the Stay Awake function.