Mechanisms to secure items in a box

[engineeringdude]

Hi I am having some difficulties in my design and I hope I can get some insights on this. I am using a robot to transfer a stack of thin rectangular blocks (roughly 5mm each) into a box. However, I am having some difficulties thinking how to secure the items in the 3 axis without compromising on the ease of transfer as the robotic arm have to be able to take it out and put it back in with ease. The entire process will be fully automated.

Your help is deeply appreciated! Thank you in advance :D

 

[berkeman]

Welcome to PF.

Is this a schoolwork question? If so, I can move your thread to the Homework Help forums for you.

If it is for work, can you give more details about the project? Can you post your mechanical drawings so far as 3D PDF files? Thanks.