SPECIAL BONUS! these slots will also fit Micro SIM cards!

this is a case to hold 3 micro sd chips., side by side (either side up). it is about 3mm thick. it does not require any supports when printed upright. And it is very strong, even wit 1mm walls all around. I am going to make a 6 and 12 plus slot version which will be slightly thicker than a credit card or business card the micro SD chips can be pushed in completely without any overhang. And they are snug fit.. and can be pulled out with finger tips grasp on end through the cut out.

This is my first creation. I am pretty happy with it. I would like to reduce the width of the wall by about half. I think this would still keep it very strong for being kept in a wallet. or it it can be taped or glued to a device for easy access to memory chips.

take a look at holder i created of similar design for a single full size SD Memory card
http://www.thingiverse.com/thing:1750263
2 microSD memory card holder (for wallet/pocket)
http://www.thingiverse.com/thing:1751162