Dremel 3D20 Quick Start Manual page 4

3. Replace the back left screw, through the bottom of the
turbo fan mount, into the bottom of the extruder mounting
carriage.
2610038113
Congratulations!
You are now ready to build. Build On.
4. Insert the 2.5mm hex screw onto the fan baffle and guide
the fan baffle into place on the extruder. Tighten the screw
to mount the fan baffle on the extruder.
5. You have now successfully installed the new hot-end
assembly.
08/16