Backpack Item Quick-Grab

Have you ever found yourself digging through your backpack for the same thing over and over again? This model mounts often-used items onto the outside of backpacks and uses a quick-swap system.

DETAILS:

This model consists of two main parts – the “base” and the “key.” Items can be mounted to the key while the base remains connected to the backpack. The key can then easily connect/disconnect from the base with a locking piece. I have designed multiple keys for different purposes 

ASSEMBLY:

Step 0 – Materials:

For this project you will need a couple of M3 nuts and screws, one 5x10 mm spring, and some filament of your choice. I would advise against using PLA if you want to use this in the sun.

Step 1 – Printing:

Print out all of the parts. For best print quality, place the parts on the bed so that any of the nut holes are facing down and print at a .15 mm layer height. The mid-air nut holes are specifically designed for easy printing without supports at a .15 mm layer height.

Step 2 – Adding Nuts:

The nut holes are a tight fit so I would recommend using the screws to pull the nuts into place.

Step 3: Screwing:

Screw all of the parts together as shown in the photo below.

Step 4 - Test:

To insert a key, push it so that it is flush with the back plate. Then push on the locking mechanism and slide the key into place. You can finally release the locking mechanism to secure the key firmly in place. Follow the GIF below for further clarification.

Step 5 – Enjoy:

Not much to say here :)