Customizable Door Latch
thingiverse
This project is based off of a design from Thingiverse, specifically thing #655519. I made some modifications to suit my needs and also added a stopper mechanism to it. You can change the parameters in the .scad file as per your preference. I've included two example stl files to give an idea of how you can use this latch. I'm using this latch on the door to my child's room, which is designed as thing #2576607 on Thingiverse. Update 2018-07-22: New working example stl files are now uploaded.
With this file you will be able to print Customizable Door Latch 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 Customizable Door Latch.