Japanese yen coin holder

thingiverse

Japanese Yen Coin Holder 500 yen x 4, [1 yen or 5 yen or 10 yen or 50 yen or 100 yen] x 4 sheets x 5 places 500 yen x 4, [1 yen or 5 yen or 10 yen or 50 yen or 100 yen] x 4 sheets x 7 places Initially, I created items that each held four coins. I improved them by adding four identical 1-100 yen coins at any location except the 500 yen spot. In the meantime, I made it easy to insert and remove the coins from the corners. The structure utilizes the flexibility of TPU, making it unusable with other filaments. Depending on the strength of the TPU, metal rods can be inserted for reinforcement. I simply placed them at both ends. However, if the TPU filament is too soft, twisting it in an unintended direction may cause coins to fall out. To prevent this, I used a 1.4mm diameter metal rod as reinforcement. This metal rod was originally part of a waste binder and proved to be quite robust.