child safety lock for doors
thingiverse
I designed it to prevent my baby from coming out on the balcony. After you unlock the other locks, you need to lock them again. If you are careless like me, these methods can not meet your security needs. However, this locking mechanism I designed, locks automatically when you close the door and also allows you to leave the door space for ventilation.
Download Model from thingiverse
With this file you will be able to print child safety lock for doors with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on child safety lock for doors.