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                  1. Support
                  2. Original Prusa i3 MK2S
                  3. Printer maintenance
                  4. How to remove a stripped screw
                   

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                  How to remove a stripped screw

                  Relevant for

                  MMU family
                  ENCLOSURE family
                  MINI family
                  MK3 family
                  OLD PRODUCTS
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                  If you are trying to unscrew any of the screws in the printer, and the key keeps turning without releasing the screw, it means that the screw is stripped.

                  You might wish to drill the screw and using an extractor if you have experience using these tools. If you do not have experience, do not attempt it, and follow the tips below.

                  Do not follow internet tutorials if they are not specific for electronics or sensitive parts. Methods specific for woodworking might damage your printer.
                  If you have a strong magnet, you can attach it to your Allen key to remove any possible debris and help with the screw extraction.
                  1. Different Allen key: you might be using an incorrect Allen key, or the tool might be damaged. Try using the other side of the Allen key. This can happen especially for the smaller screws.
                  2. Better grip of the screw: if the head of the screw is damaged, you can place something between the head of the screw and the Allen key to make the grip better. The most commonly used material are wide rubber bands, but others things can be used: latex gloves, aluminum foil, steel wool. Make constant pressure towards the screw, and slowly turn the key until the screw is out.
                  3. Pliers: if you can see the head of the screw, try to firmly hold the head of the screw with pliers, and rotate the pliers until the screw is loose.
                  After removing the damaged screw please throw it away to make sure you will not use it again.
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                  Topics

                  • Using the printer
                    • Printer maintenance
                      • Changing or replacing the nozzle (MK2.5/S, MK3/S/+, MK3.5/S)
                      • MMU2S regular maintenance
                      • i3 Printer Regular Maintenance
                      • Testing safety features (MK3/MK3S)
                      • How to update firmware (MK3S+/MK3S/MK3)
                      • How to replace a heatbreak/heaterblock/heatsink (MK3/MK2.5)
                      • CW1 maintenance
                      • How to remove a stripped screw
                      • SD cards and USB drives
                      • Adjusting belt tension (MK4/S, MK3.9/S, MK3.5/S, MK3/S/+)
                      • Hotend disassembly & heatbreak stuck in the heatsink
                      • How to replace a M.I.N.D.A. sensor (MINI)
                      • How to replace a print fan (MINI)
                      • How to replace a hotend PTFE tube (MINI/MINI+)
                      • How to replace a hotend fan (MINI)
                      • Removing filament from extruder manually
                      • How to replace a heatsink (MINI/MINI+)
                      • How to replace a heaterblock/heatbreak (MINI/MINI+)
                      • How to replace a Buddy control board (MINI)
                      • Firmware updating (SL1/SL1S)
                      • Firmware updating (MINI/MINI+)
                      • Cold pull (MINI)
                      • How to access and clean the extruder-pulley (MINI/MINI+)
                      • How to replace a blower fan (SL1)
                      • Buddy electronics Wiring (MINI)
                      • How to update firmware (MINI/MINI+)
                      • How to replace an optical sensor (SL1)
                      • How to replace a hotend thermistor (MK3S/MK3S+)
                      • Checking/re-aligning the Bondtech gear (MK3.5/S, MK3S/+, MK2.5S)
                      • Regular maintenance (MINI/MINI+)
                      • How to replace the print display (SL1)
                      • Changing/replacing the nozzle (MINI)
                      • How to disassemble the CW1
                      • How to replace a print head PTFE tube (MINI/MINI+)
                      • How to replace a heatbed thermistor (MINI/MINI+)
                      • How to replace the power button (SL1/SL1S)
                      • How to replace a hotend thermistor (MINI/MINI+)
                      • How to replace the A64 board (SL1)
                      • Height adjustment of M.I.N.D.A./SuperPINDA sensor (MINI/+)
                      • How to replace a hotend heater (MINI/MINI+)
                      • Firmware updating (MMU2S)
                      • Firmware updating (MK2.5S/MK2S)
                      • How to replace a heatbed (MINI/MINI+)
                      • Adjusting belt tension (MINI/MINI+)
                      • How to replace an extruder motor (MINI/MINI+)
                      • Firmware updating (CW1)
                      • How to replace a Lid safety switch (CW1)
                      • How to replace the USB connector (SL1/SL1S)
                      • How to replace a print fan (MK3S/MK3S+)
                      • How to replace a hotend (MK3S/MK3S+)
                      • How to replace an IR-sensor (MK3S/MK3S+)
                      • How to replace a P.I.N.D.A. sensor (MK3S)
                      • How to replace SuperPINDA (MINI/MINI+)
                      • How to replace SuperPINDA (MK3S/MK3S+)
                      • How to replace bearings on the Y-axis (MK3S+)
                      • How to replace bearings on the X-axis (MINI/MINI+)
                      • How to replace bearings on the Y-axis (MINI/MINI+)
                      • How to replace bearings on the X-axis (MK3S+)
                      • How to replace a display (CW1)
                      • How to replace a hotend heater (MK3S/MK3S+)
                      • How to replace the FEP film (SL1S)
                      • How to replace the print display (SL1S)
                      • Vibration/noise when printing (MINI/MINI+)
                      • Community translations
                      • How to replace a blower fan (SL1S)
                      • How to replace a UV LED fan (SL1S)
                      • PETG sheets (Enclosure)
                      • Fire Suppression system (Enclosure)
                      • How to replace a heatbed set (MINI/MINI+)
                      • IPA pigment filter (CW1/CW1S)
                      • Print surface preparation
                      • How to replace a heatbreak/heatsink/heaterblock (MK3S+/MK3S/MK2.5S/MMU2S)
                      • How to replace a PTFE tube (MK3/MK2.5)
                      • How to trim PTFE tube - Multi Material
                      • Cold pull (MK3/S/+, MK2.5/S, MK3.5/S)
                      • How to post-process the printed parts
                      • How to replace a heatbed thermistor (MK3S+/MK3S/MK2.5S/MK2S)
                      • How to replace UV LED assembly (SL1S)
                      • How to replace PSU on MK3 printers
                      • How to replace a hotend PTFE tube (MK3S+/MK3S/MK2.5S/MMU2S)
                      • How to replace a hotend thermistor (MK2S)
                      • How to trim PTFE tube - Original Prusa printers
                      • Maintenance tips
                      • Replacing the PEI sheet on the MK2/S
                      • Replacing the PEI sheet on the (MK3S/MK3/MK2.5S/MK2.5)
                      • How to replace a UV LED assembly (SL1)
                      • How to replace a filter (SL1/SL1S)
                      • IPA pigment filter
                      • SL1/SL1S print removing
                      • FEP film replacement (SL1)
                      • MK3 Series Hotend Guide
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