Customisable Opal Case (Oval gems)

thingiverse

This is based on https://www.thingiverse.com/thing:1563872/files but adapted for printing opal cases. The default opal case above is designed specifically for a 3mm x 5mm Opals, which are very small and often not worth investing in an expensive case for. However, they still make for a unique and interesting Australian gift. You can easily adapt this design to accommodate more expensive and larger Opals. --- Note: I found it challenging to close the case initially, and when using PLA, the hinge tends to be quite brittle. I'd love to hear some ideas on how to address this issue. I believe you should use PETG instead of PLA, as the parent design did. Further investigation revealed that the key factor is actually the height of the case. The default height was too small, resulting in a hinge that's also too small. To resolve this, I re-uploaded the design with a higher height.