Open Hardware
Assembly Instructions

(Note orientation of block)

Thread nozzle all the way in.

Torque down to 30in*lbs using a torque wrench with a 7mm wrench attachment on the nozzle and a 18mm wrench on the heater block.

(note orientation of heat break, and the side the compound is applied to)

Apply heat sink compound to the heat break

Install heat break into the heat sink

Finger tighten into the heat sink

Thread 2 threads into the heat block

Apply thread lock compound on the exposed threaded surface

Thread into the heater block until it stops

Torque to 25in*lbs by using the nozzle and the opposite end of the heat sink

Connect the thermistor assembly to the thermistor extension. (note orientation of the connector on the thermistor assembly and on the thermistor extension)

Slide the connectors together until there is a “click” noise.

Install thermistor into bottom hole. The wire end should be flush with the block(note orientation of the heater block)

Install heater cartridge into middle hole of block. Wire end should be flush with the block (note orientation of the Heater block)

Attach the retention plate with the M3X8 BHCS screw and torque to 8 in/lbs

Install M3x4set screw into the threaded hole aligned with the Heater block and tighten

NOTE: M3x4 set screw is overtightened, the thermistor will be crushed.

Install M3x4 set screw into the threaded hole aligned with the thermistor, tighten until the screw is touching the thermistor