Markforged Mark Two: Changing the Filament

Select the Menu icon from the dashboard

Select Materials

Select Unload Plastic

Click Next to continue

Push in on the black push-to-connect fitting at the back of the extruder

Pull the feed tube from the push-to-connect fitting

Expose the plastic material

Use a pair of side cutters to cut the exposed plastic at a 45° angle

Open the drybox

Wind the cut plastic filament back onto the spool

Secure the filament in the spool using the through holes

Close the drybox

Unscrew and remove the Bowden tube from the front (outlet) of the extruder

Press Next to begin expelling the cut filament

The filament can only be exposed to the air for about 15 minutes before it picks up too much moisture, so limit it's air exposure

Take hold of the cut plastic material and help direct it free from the plastic extruder

Press Stop when the plastic has been completely unloaded from the extruder

Reinstall the Bowden tube and feed tube to the plastic extruder

Press Next

This step is only relevant if you need to replace the spool in a drybox

Open your drybox and remove the spindle from the inside

Pull the magnetic spindle cap and spindle body apart

Remove the new spool from its packaging

Partial spools need to be weighed using the scale

Place the spool on the spindle and attach the magnetic retention cap

Place the spindle in the drybox such that the plastic filament exits from the top of the spool

Always hold the plastic against the spool to prevent unwinding during the loading routine

Cut the plastic filament at a 45 degree angle

Insert one end of the plastic feed tube into the adapter on the side of the drybox

Feed the plastic filament all the way through the tube

Close the drybox cover and press the latches closed until they click twice each

Feed the plastic feed tube through the opening in the back of the printer

Select Menu from the dashboard

Select Materials

Select Load Plastic

Select Meter Load

Select the material you are loading on the printer

Select either a full spool or a partial spool

Enter the weight measure before for a partial spool

Then wait for the print head to warm up and press Next

Feed the material from the plastic feed tube into the plastic extruder

Insert the feed tube into the extruder’s push-to-connect fitting

Press Stop once the material begins extruding from the nozzle

Do not be alarmed by the plastic extruder clicking as material is extruding, this is normal and expected behavior

Use tweezers to grab and remove any extruded material that gathers on the nozzle

Press Done to exit the utility

Press Retry to continue extruding material