As a special Christmas treat this week we're bringing you a triple-whammy of stocking filler product releases! Get your digits fiddling with E3D's new hardened hobbs, plated copper heater blocks, and nozzles. Note that we said plated copper, not copper plated! These blocks and nozzles are made of high temperature copper alloy and plated with non-stick nickel (and laser-engraved with the...