I made an insert for 3 Tentacle Sync - Track E devices and their lavmics (in their protective pouch) and used @Withy 's - Parametric 150x100x50 box as protective case.
A simple yet effective insert to prevent them from rattling or damaging while travelling.

Printing:

• No Brim, no supports
• 0,4 Nozzle
• 0,2 Layer Height
• Minimum PETG preferred for outdoor usage

Post Printing:

• 6x M3 - 30MM required for assembly
• I added some 1mm adhesive vinyl on the bottom for shock absorption