This is a model to upgrade the Pimax'HMD stock headstrap.
You can use the harderner only if you dont want to use headphones.
Speakers size is 40mm standard.
70, 60 and 45/50mm foam headphones are indicted.
Also a 45/50 tilted which is THE BEST to me (Recommended).
Very good with this foam from AliExpress -> https://fr.aliexpress.com/item/32969877364.html?spm
You can of course use metal 6mm nuts/bolts instead of the printed ones.
I used PLA for snapping parts (headphones) because I find my abs to brittle.
Print nuts/bolts full infill of course.
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