Heater and thermocoupler replacement should take place if the extruder overheats or if the heating is insufficient. These problems are indicated by the firmware messages: “Extruder heating error,” “Extruder temperature is too high” or “Unexpected extruder temperature drop.” Also, if your print has blisters or hanging strands on its surface, you should consider the fact that the heater or the thermocoupler may be broken. Sometimes when the nozzle hits the platform the heater and thermocoupler also need replacing. But first you need to check the platform connectors and the nozzle for proper functioning. .

M Series Printers Servicing

M Series Printers Servicing

Zortrax M Series includes two printer models right now: M200 and M300. These printers remain similar in terms of design and technology. The most important difference is their size: M200 with a 200x200x180mm workspace, whereas M300 with an increased 300x300x300mm workspace.

Therefore, maintenance and repair work can be carried out in the same manner with both models. The following manual shows M200 repair work. In the case of M300, these procedures look the same.

Unloading the Material

If the material is loaded into the extruder, unload the material using the “Material” -> “Unload the material” option in the menu.

Unplugging the Power Cable

Turn off the printer and unplug the power cable.

Wait until the printer – especially the hotend – cools down completely.

Unplugging the Extruder Cable

Unplug the extruder cable.

THE MANUAL SHOWS THE EXTRUDER WITH THE TOP COVER V1. WE RECOMMEND REPLACING THE COVER V1 WITH THE COVER V2 FOR EXTRUDER CABLE PROTECTION REASONS. See the manual.

Hotend Removal

With a 1.5mm Allen key loosen the two screws securing the hotend and remove the hotend from the extruder.

Heater and Thermocoupler Removal (from the Hotend)

With a 1.5mm Allen key loosen the two screws securing the heater and thermocoupler in the hotend. Then take the heater and thermocoupler out.

Upper Printed Extruder Cover Removal

Detach the upper printed extruder cover from the extruder.

Heater and Thermocoupler Removal (from the Extruder)

Remove the heater and thermocoupler from the extruder block and from the heat shrink tubing. Unplug the cables from the extruder PCB.

New Heater and Thermocoupler Assembly (in the Extruder)

Plug the heater and thermocoupler cables into the extruder PCB. Put them through the heat shrink tubing and inside the extruder’s casing.

Upper Printed Extruder Cover Assembly

Attach the upper extruder cover.

Heater and the Thermocoupler Assembly (in the Hotend)

Insert the heater and thermocoupler into the hotend and firmly tighten the two screws securing them (using a 1.5mm Allen key).

Make sure that the screws don’t go through the insulation covering the wires (this can happen if the heater goes too deep into the slot).

This picture shows the heater inserted correctly. This picture shows the heater pushed too far into the slot in the hotend.

Hotend Assembly

Insert the hotend into the extruder and tighten the two screws securing it (using a 1.5mm Allen key).

Plugging the Extruder Cable

Plug the extruder cable in.

Plugging the Power Cable

Plug the power cable in.

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