STACKER 500KS USER GUIDE 21
A. Remove Nozzles
Although you will not need to change nozzles for your first print, it is important to understand how to
install and remove nozzles, especially if you intend on changing nozzles sizes.
Step 1.
Remove the filament from your hot end and clean up any residual filament around
the tip of the nozzle.
Open
STACKER RUN
, connect, and go to the manual control tab. Turn on
the hot end for the nozzle you wish to change to about 220°C. Once hot, release the filament drive
idler assembly and pull back the filament by hand until it is clear of the hot end nozzle, about
100mm or until you can see the end of the filament through the guide tube just above the hot end.
Next, take a dry cotton cloth and wipe off the tip of the nozzle until it is clean.
Use a glove to protect
yourself from getting burned.
After the nozzle is clean, TURN OFF THE HOT END and wait for it to
cool.
IMPORTANT: Turn off the heat and wait until the hot end has cooled down before
proceeding with the next step!
Step 2.
Remove the guide tube from the nozzle.
Use the supplied nozzle wrench to release the
grip on the pushtype fitting on the top of the hot end heat sink, see photo below. With the fitting
compressed, gently pull on the filament guide tube until it releases from the nozzle. Pull it all the
way out of the hot end and go to step 3. If the filament guide tube is stuck, go to step 2a.
Step 2a.
What to do if your tube is stuck.
If the guide tube is stuck into the nozzle you must
remove the nozzle and guide tube TOGETHER. Start by releasing the guide tube from the fitting on
the filament drive. Depress the pushfit type fitting with your fingers and pull the filament guide tube
out of the fitting, as shown. Proceed with the next step.