OPAM Hot End

[JRDM]

"over 100 hours of testing" Is that supposed to be a lot? Is that divided between all six prototypes, or just one long part build?

If it's all-metal, why does the barrel look like plastic?

[richardphat]

Correct me if I am wrong, but since when pipe and fitting were meant to be in application where they move alot?
Are the fitting and connect wear proof from movement?

Heck even in stationary you do get leak in desktop already...