3D printer troubleshooting guides

All guides (189)

Any FDM printer (49 guides)

• A fan isn't spinning: the hotend heatsink fan or the part cooling fan · A fan does not spin or is noisy
• ASA and ABS: smell and fumes when printing, carbon filter and ventilation without ruining the part · Corners lift (warping) · Layers split apart (delamination)
• ASA: the corners lift and the part comes off the bed mid-print · Corners lift (warping) · Does not stick to the bed
• Bands or jumps that repeat up the height of the part: lead screw, coupler and Z axis · Periodic bands or steps in Z · Noise or rubbing when the axes move
• Bridges and overhangs that sag or deform · Gaps in walls or top layers
• Corners lift and the part curls up (warping) · Corners lift (warping)
• Damp TPU: strings, bubbles and a rough surface; how to dry it and print it with fewer strings · Strings between parts (stringing) · Blobs and zits on the surface
• Filament ground or chewed by the extruder · The extruder grinds or snaps the filament · The extruder clicks or skips
• First layer won't stick to the bed · Does not stick to the bed · Uneven first layer (thin and thick areas)
• Frozen screen, garbled symbols or restarts in the middle of a print · Frozen screen or restarts
• Gaps in the top surface, in the walls or between infill and perimeters · Gaps in walls or top layers · Too little filament (under-extrusion)
• High-speed PLA: which temperature and flow to use so it does not come out with gaps or weak layers · Too little filament (under-extrusion) · Gaps in walls or top layers · Layers split apart (delamination)
• Homing or the leveling probe fails (endstop, BLTouch/CRTouch, inductive or load cell) · Homing or a sensor fails (endstop, levelling) · The printer shows an error code or message
• Klipper: board communication errors (Lost communication with MCU, MCU shutdown, Move out of range) · The printer shows an error code or message · Problems after a firmware update
• Layer shift: the print steps sideways in X or Y · Shifted layers (layer shift)
• Layers separate or the part cracks between layers · Layers split apart (delamination)
• Loose pulleys or grub screws: shifted layers, play and noises in the axes · Shifted layers (layer shift) · Loose belts · Noise or rubbing when the axes move
• Loose, over-tight or damaged belts: how to check and tension them · Loose belts · Shifted layers (layer shift) · Ripples or echoes on the walls (ghosting)
• Lubricating lead screws, rods and rails: with what, how often and where not to put it · Noise or rubbing when the axes move · Periodic bands or steps in Z
• Measuring filament diameter with calipers and knowing whether to adjust the flow · Too much filament (over-extrusion)
• Not enough plastic: gaps and thin walls (under-extrusion) · Too little filament (under-extrusion) · Gaps in walls or top layers
• Nozzle clogs or stops extruding mid-print (heat creep) · Clogged nozzle or hotend · No filament comes out
• PETG on a smooth PEI plate: the part sticks so hard it tears pieces off the sheet · The print will not come off the bed
• PETG: layers that separate or brittle parts that break along the layers · Layers split apart (delamination)
• PLA in an enclosed printer: it clogs mid-print because the chamber gets too hot · Clogged nozzle or hotend
• PLA turns brittle and snaps on the spool, in the tube or in the multi-colour system · No filament comes out · The multi-material system fails (does not load, cut or jams)
• Problems after a firmware update · Problems after a firmware update · The printer shows an error code or message
• Replacing a worn or broken belt and tensioning it properly · Loose belts · Shifted layers (layer shift)
• Ripples or echoes after corners and features (ghosting or ringing) · Ripples or echoes on the walls (ghosting)
• Squeaks, grinding or vibration when the axes move · Noise or rubbing when the axes move
• Supports that fall over, break or won't come off · Does not stick to the bed · The print will not come off the bed
• Temperature error: Thermal runaway, MINTEMP, MAXTEMP or Heating failed · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · The printer shows an error code or message
• The base of the part comes out wider (elephant's foot) · Elephant's foot (flared first layer)
• The extruder clicks or skips · The extruder clicks or skips · Too little filament (under-extrusion)
• The filament sensor gives false alarms or doesn't detect runout · The printer shows an error code or message · No filament comes out
• The file does not show up on the printer or is not recognised: format, folder and card · Does not read the SD card or USB drive
• The hotend or bed won't heat up, or takes too long · The hotend or the bed does not heat · Temperature error (MINTEMP, MAXTEMP, thermal runaway)
• The part is stuck so hard to the bed it won't come off · The print will not come off the bed
• The printer cannot find the firmware update on the card or USB drive · Does not read the SD card or USB drive · Problems after a firmware update
• The printer won't connect to Wi-Fi or the app can't find it · Does not connect to Wi-Fi or the app
• The printer won't read the SD card or USB drive · Does not read the SD card or USB drive
• The printer won't turn on or switches itself off · The printer does not turn on
• Thin strings between parts of the print (stringing) · Strings between parts (stringing)
• Too much plastic (over-extrusion) and how to calibrate flow · Too much filament (over-extrusion)
• Uneven first layer: squished in some areas and gappy in others · Uneven first layer (thin and thick areas) · Unlevel or warped bed
• Unlevel or warped bed: uneven first layer even with a bed mesh · Unlevel or warped bed · Uneven first layer (thin and thick areas)
• Very soft TPU (85A or softer): only with a direct drive extruder, a short path and very slowly · The extruder grinds or snaps the filament · No filament comes out
• Wet filament: how to spot it and dry it · Strings between parts (stringing) · Blobs and zits on the surface · Layers split apart (delamination)
• Zits, blobs and a visible seam on the walls · Blobs and zits on the surface

Materials and filament (8 guides)

• ABS and ASA: cracks between layers, parts that warp and a strong smell (enclosure and ventilation) · Layers split apart (delamination) · Corners lift (warping)
• Carbon or glass fibre filaments: they wear the nozzle, clog or snap · Clogged nozzle or hotend · Too little filament (under-extrusion)
• How to store spools so they do not absorb moisture or tangle · Strings between parts (stringing) · No filament comes out · Layers split apart (delamination)
• Multi-colour printing: colours mix, purging wastes a lot of filament or the prime tower fails · The multi-material system fails (does not load, cut or jams)
• Nylon (PA): bubbles, stringing and weak layers from moisture, or parts that warp · Strings between parts (stringing) · Corners lift (warping) · Layers split apart (delamination)
• PETG: stringing, plastic stuck to the nozzle and parts that grip the plate too hard · Strings between parts (stringing) · Blobs and zits on the surface · The print will not come off the bed
• Silk PLA and PLA+: which temperature to use and why they lose shine, have weak layers or clog · Layers split apart (delamination) · Strings between parts (stringing) · Clogged nozzle or hotend
• TPU and flexibles: they tangle in the extruder, jam in the tube or the multi-colour system, or string · Clogged nozzle or hotend · The extruder clicks or skips · Strings between parts (stringing)

Any resin printer (13 guides)

• Cured resin debris floating in the vat · The print sticks to the vat film (FEP) · Resin leak or torn film in the vat
• Hollow or cup-shaped parts: suction effect and drain holes · Layer separation or cracks in the resin print · The resin print's supports fail
• Levelling the build plate of a resin printer · The resin print does not stick to the build plate · The print sticks to the vat film (FEP)
• Loss of detail from wrong exposure (overexposure or underexposure) · Soft, tacky or blurry resin prints
• Resin leak or torn film in the vat · Resin leak or torn film in the vat
• Resin print does not stick to the build plate · The resin print does not stick to the build plate
• Resin safety: gloves, glasses, ventilation and waste · Resin leak or torn film in the vat · Soft, tacky or blurry resin prints
• Separated layers, cracks or delamination · Layer separation or cracks in the resin print
• Sticky, soft parts or residue after washing and curing · Soft, tacky or blurry resin prints
• Supports fail or the part breaks away from them · The resin print's supports fail
• The LCD screen or UV light shows no image · The LCD screen or UV light does not light up
• The print sticks to the vat's FEP film · The print sticks to the vat film (FEP) · The resin print does not stick to the build plate
• The resin or the room is too cold · The resin print does not stick to the build plate · Layer separation or cracks in the resin print

Anycubic (15 guides)

• Kobra 2: auto-leveling fails with a module or abnormal leveling warning · Unlevel or warped bed · The printer shows an error code or message · Uneven first layer (thin and thick areas)
• Kobra 3 or Kobra S1 with ACE Pro: error 11511, 11512 or 11518 (filament will not feed, will not retract or jams) · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message · Clogged nozzle or hotend
• Kobra S1 or Kobra 3: a print head fan does not spin or is noisy (error 11950 on the S1) · A fan does not spin or is noisy · The printer shows an error code or message
• Kobra S1 or Kobra 3: error 10411 (mainboard TMC driver overheating; mainboard fan) · The printer shows an error code or message · A fan does not spin or is noisy
• Kobra S1 or Kobra 3: errors 10121, 10122, 10123 or 10124 (bed or printhead not heating, or thermistor fault) · The printer shows an error code or message · The hotend or the bed does not heat · Temperature error (MINTEMP, MAXTEMP, thermal runaway)
• Kobra S1 or Kobra 3: errors 10237 (auto levelling), 10108 (nozzle scraping the bed) or 10130 (Z homing) · The printer shows an error code or message · Unlevel or warped bed · Homing or a sensor fails (endstop, levelling)
• Kobra S1: little or no filament comes out (hotend clog or error 11518) · Clogged nozzle or hotend · No filament comes out · Too little filament (under-extrusion) · The extruder clicks or skips · The printer shows an error code or message
• Kobra S1: noise from the Z axis, the rods or the print head while printing · Noise or rubbing when the axes move
• Kobra S1: won't connect to Wi-Fi, the cloud or the app, or the camera shows nothing (11402, 10105) · Does not connect to Wi-Fi or the app · The printer shows an error code or message
• Photon Mono M5s: leveling, resin, layer or dropped-print monitoring warnings · The printer shows an error code or message · The resin print does not stick to the build plate · The resin print's supports fail
• Photon Mono M7 Pro or M7 Max: warnings about residue in the vat, not enough resin, or model fell off/incomplete · The printer shows an error code or message · The resin print does not stick to the build plate · The print sticks to the vat film (FEP)
• Photon Mono M7 Pro: replacing the ACF film (bumps, cured resin, leaks or code 305) · Resin leak or torn film in the vat · The print sticks to the vat film (FEP) · The printer shows an error code or message
• Photon Mono M7 Pro: the exposure test fails or the LCD does not display the image properly · The LCD screen or UV light does not light up · The resin print does not stick to the build plate · Soft, tacky or blurry resin prints
• Photon Mono M7 Pro: the print does not stick to the build plate or leveling fails (code 303) · The resin print does not stick to the build plate · The print sticks to the vat film (FEP) · The printer shows an error code or message
• Photon Mono M7 Pro: the resin vat does not heat the resin or code 307 appears · The printer shows an error code or message · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · The resin print does not stick to the build plate

Bambu Lab (25 guides)

• A1 and A1 mini with AMS lite: won't load, won't extrude or won't pull the filament out of the toolhead · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message · Clogged nozzle or hotend
• A1 and A1 mini: first layer too low, wavy or scraping the plate (hotend shifting) · Uneven first layer (thin and thick areas) · Does not stick to the bed
• A1 and A1 mini: not extruding or under-extruding (clogged nozzle, slipping extruder or nozzle too low) · Clogged nozzle or hotend · No filament comes out · Too little filament (under-extrusion)
• A1 and A1 mini: Z homing or bed levelling fails (hotend eddy current sensor) · Homing or a sensor fails (endstop, levelling) · Unlevel or warped bed · The printer shows an error code or message
• AMS 2 Pro or AMS HT: the printer doesn't detect it or it won't dry the filament · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message
• Bambu Lab build plates: print won't stick, plate not recognised or not matching the G-code · Does not stick to the bed · The print will not come off the bed · The printer shows an error code or message
• Bambu Lab: what an HMS code or an error code means and how to find its guide · The printer shows an error code or message
• Fan error: hotend fan running slow (0300-0300-…) or part cooling fan stopped (0300-0400-0002-0001) · A fan does not spin or is noisy · The printer shows an error code or message
• Flow dynamics (K factor) and flow rate calibration in Bambu Studio: when to run it and why it fails · Too little filament (under-extrusion) · Too much filament (over-extrusion) · Blobs and zits on the surface
• H2D: extrusion motor overloaded (0300-0900-0002-0001) or one nozzle stops extruding · Clogged nozzle or hotend · No filament comes out · The printer shows an error code or message
• H2D: the two nozzles don't line up (shift when switching nozzles) or nozzle offset calibration fails · The multi-material system fails (does not load, cut or jams) · Shifted layers (layer shift) · The printer shows an error code or message
• My Bambu printer won't join Wi-Fi, won't bind to Bambu Handy or Bambu Studio, or cloud access fails · Does not connect to Wi-Fi or the app · The printer shows an error code or message
• My Bambu printer won't read the microSD card or shows card errors · Does not read the SD card or USB drive · The printer shows an error code or message
• Noise or friction on the axes: cleaning and lubricating rods, lead screws and pulleys (X1, P1 and A1) · Noise or rubbing when the axes move · Periodic bands or steps in Z · Ripples or echoes on the walls (ghosting)
• Nozzle or bed temperature errors (HMS 0300-0200-… and 0300-0100-…) · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · The hotend or the bed does not heat · The printer shows an error code or message
• Tensioning the belts on the X1, P1, A1 and H2D (oval circles, ringing or tension alert) · Loose belts · Ripples or echoes on the walls (ghosting) · Shifted layers (layer shift)
• The AMS won't load filament: «Failed to feed», assist motor overloaded or no extrusion · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message · Clogged nozzle or hotend
• The AMS won't unload filament: it won't leave the extruder, won't return to the AMS or «filament broken in the toolhead» · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message · Clogged nozzle or hotend
• The Bambu camera won't show in Bambu Studio or Bambu Handy (black screen or Liveview error) · Does not connect to Wi-Fi or the app · The printer shows an error code or message
• The Bambu firmware update fails or can't be done online (updating from the microSD card) · Problems after a firmware update · The printer shows an error code or message
• The filament cutter gets stuck («The cutter is stuck») or fails to cut · The printer shows an error code or message · The multi-material system fails (does not load, cut or jams) · Clogged nozzle or hotend
• X1 and P1: clogged nozzle or hotend (0300-4006) and how to clear it · Clogged nozzle or hotend · No filament comes out · The printer shows an error code or message
• X1 and P1: homing or bed levelling fails (Z homing failed, plate not placed properly, force sensors) · Homing or a sensor fails (endstop, levelling) · Unlevel or warped bed · The printer shows an error code or message
• X1 and P1: the extruder clicks, chews the filament or is clogged (cleaning and greasing) · The extruder clicks or skips · The extruder grinds or snaps the filament · Clogged nozzle or hotend
• X1: Micro Lidar alerts (dirty lens, failed calibration, nozzle height) and first layer inspection · Uneven first layer (thin and thick areas) · The printer shows an error code or message

Creality (19 guides)

• CFS: what its lights mean and what to do if the printer does not detect it · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message
• Creality Print or Creality Cloud will not send the print (Upload Failed, Send Failed) or the printer shows offline · Does not connect to Wi-Fi or the app · The printer shows an error code or message
• Ender 3 S1 Pro or Ender 5 S1: first layer too high or scraping after levelling (CR Touch and Z offset) · Unlevel or warped bed · Uneven first layer (thin and thick areas) · Does not stick to the bed
• Ender 3 V3 KE: the vibration sensor is not recognised, the screen flickers or ringing appears (input shaping) · Ripples or echoes on the walls (ghosting) · The printer shows an error code or message · Loose belts
• Ender 3 V3 or V3 Plus: the hotend does not heat (error 2564 or 111) or it restarts while heating · The hotend or the bed does not heat · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · The printer shows an error code or message · Frozen screen or restarts
• Ender 3 V3 SE or KE: leveling fails, CR Touch error or the nozzle scratches the bed · Unlevel or warped bed · Uneven first layer (thin and thick areas) · The printer shows an error code or message
• Ender 3 V3 SE or KE: no filament comes out, the nozzle clogs or the extruder clicks · Clogged nozzle or hotend · No filament comes out · The extruder clicks or skips
• Ender 3 V3 SE: noise or stuttering on the X or Y axis, from a motor or from a fan · Noise or rubbing when the axes move · Loose belts · A fan does not spin or is noisy
• Ender 3 V3 SE: nozzle or bed temperature too low or too high, or it restarts while heating · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · The hotend or the bed does not heat · The printer shows an error code or message · Frozen screen or restarts
• Ender 3 V3 SE: the Z axis does not move when homing, the gantry is crooked or the nozzle height is wrong · Homing or a sensor fails (endstop, levelling) · Unlevel or warped bed · Uneven first layer (thin and thick areas)
• K1: update not found, update fails or it stays on the start screen (memory full) · Problems after a firmware update · Frozen screen or restarts · Does not connect to Wi-Fi or the app
• K2 Plus: a clump or blob of filament forms around the hotend · Does not stick to the bed · Blobs and zits on the surface
• K2 Plus: the waste chute clogs and the purge does not fall out (sometimes with error 2060) · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message
• The K1 is not extruding: the gear spins or clicks (jam in the extruder or hotend) · Clogged nozzle or hotend · No filament comes out · The extruder clicks or skips
• The K1 levels badly: the nozzle scrapes the bed in some areas and the layer is too high in others · Uneven first layer (thin and thick areas) · Unlevel or warped bed · The printer shows an error code or message
• The K1 pauses itself due to AI detection (101, 103, 104) or warns about the LiDAR (505, 506, 507, «LiDAR not detected») · The printer shows an error code or message · Uneven first layer (thin and thick areas)
• The K1 shows a «key» error for the print head or bed (2000, 2001, 3002, 2564, 2565) · The printer shows an error code or message · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · The hotend or the bed does not heat
• The K2 Plus CFS will not load or retract filament (codes FR2833, FR2836, FB2847…) · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message · Clogged nozzle or hotend
• The K2, K2 Pro or K2 Plus will not connect to Wi-Fi, sees no networks or keeps disconnecting · Does not connect to Wi-Fi or the app

Elegoo (24 guides)

• Centauri Carbon 2 with CANVAS: filament will not load or unload (errors 1241, 1242, 1251 or 1265) · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message · Clogged nozzle or hotend
• Centauri Carbon 2: errors 101, 102, 103 or 104 (bed or print head not heating, or a thermistor fault) · The printer shows an error code or message · The hotend or the bed does not heat · Temperature error (MINTEMP, MAXTEMP, thermal runaway)
• Centauri Carbon 2: fan errors 701, 702, 703, 705 or 706 · A fan does not spin or is noisy · The printer shows an error code or message
• Centauri Carbon 2: leveling fails with error 704 or 605 (bed pressure sensors) · The printer shows an error code or message · Unlevel or warped bed · Homing or a sensor fails (endstop, levelling)
• Centauri Carbon 2: no filament coming out, clogged nozzle or errors 1243, 1263 or 1264 · Clogged nozzle or hotend · No filament comes out · Too little filament (under-extrusion) · The printer shows an error code or message
• Centauri Carbon 2: the touch screen does not turn on at power-on · The printer does not turn on
• Centauri Carbon 2: unusual noise or vibration when printing, moving or homing · Noise or rubbing when the axes move · Loose belts · A fan does not spin or is noisy
• Centauri Carbon: «Extrusion Abnormality» warning or no filament coming out · No filament comes out · Clogged nozzle or hotend · The printer shows an error code or message
• Centauri Carbon: errors 101, 102, 103 or 104 (bed or printhead not heating, or a thermistor fault) · The printer shows an error code or message · The hotend or the bed does not heat · Temperature error (MINTEMP, MAXTEMP, thermal runaway)
• Centauri Carbon: leveling error 502 (leveling sensor data collection error) · The printer shows an error code or message · Unlevel or warped bed
• Centauri Carbon: self-test stuck at «Input Shaping» or error 401 (accelerometer) · The printer shows an error code or message · Loose belts
• Elegoo CANVAS: the four lights flash red, the print pauses by itself or the printer does not recognise it · The multi-material system fails (does not load, cut or jams) · Problems after a firmware update
• Neptune 3 Pro: levelling does not work, the first layer is uneven or the nozzle keeps going down · Unlevel or warped bed · Uneven first layer (thin and thick areas) · Homing or a sensor fails (endstop, levelling)
• Neptune 4 and 4 Pro: plastic blob on the hotend (blob of death) or leaks around the nozzle · Blobs and zits on the surface · Does not stick to the bed · Temperature error (MINTEMP, MAXTEMP, thermal runaway)
• Neptune 4: first layer too far or squashed after leveling, or the print head does not stop going down · Uneven first layer (thin and thick areas) · Unlevel or warped bed · Homing or a sensor fails (endstop, levelling)
• Neptune 4: Klipper errors «Extrude below minimum temp», «Move exceeds maximum extrusion» or «MCU shutdown» · The printer shows an error code or message · Problems after a firmware update · Temperature error (MINTEMP, MAXTEMP, thermal runaway)
• Neptune 4: Klipper motor error («TMC stepper… reports error», «No trigger on x…») · The printer shows an error code or message · Homing or a sensor fails (endstop, levelling) · Problems after a firmware update
• Saturn 4 Ultra 16K: cold resin or «Resin heating anomaly» message (heated resin tank) · The resin print does not stick to the build plate · The resin print's supports fail · The printer shows an error code or message · Temperature error (MINTEMP, MAXTEMP, thermal runaway)
• Saturn 4 Ultra 16K: replacing the PFA film of the resin tank, or the tank leaks resin · Resin leak or torn film in the vat · The print sticks to the vat film (FEP)
• Saturn 4 Ultra 16K: the camera shows nothing or the printer won't connect to Wi-Fi · Does not connect to Wi-Fi or the app
• Saturn 4 Ultra 16K: the LCD shows no image, a partial image, lines or dead pixels, and how to replace it · The LCD screen or UV light does not light up
• Saturn 4 Ultra 16K: the print stays in the resin tank or comes off the build plate · The resin print does not stick to the build plate · The print sticks to the vat film (FEP) · The printer shows an error code or message
• Saturn 4 Ultra 16K: the self-test fails (auto-leveling, mechanical sensor or resin tank not detected) · The printer shows an error code or message
• Saturn 4 Ultra or Mars 5 Ultra: the UV light does not turn on (often due to the wrong power adapter) · The LCD screen or UV light does not light up

Flashforge (3 guides)

• Adventurer 5M or AD5X: nothing comes out on the first layer, the nozzle scratches the plate or the part will not stick · Uneven first layer (thin and thick areas) · Does not stick to the bed · Unlevel or warped bed
• Adventurer 5M, 5M Pro or AD5X: no filament comes out, too little comes out or the nozzle is clogged · Clogged nozzle or hotend · No filament comes out · Too little filament (under-extrusion)
• Adventurer 5M: temperatures at 0 °C or negative, or errors E0002, E0005 or E0011 · The printer shows an error code or message · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · The hotend or the bed does not heat

Formlabs (3 guides)

• Form 3: defects from a dirty optical window or film, or LPU errors (246, 67, 68) · The LCD screen or UV light does not light up · The printer shows an error code or message
• Form 4: cartridge and resin level errors (1.6.2, 1.9.4, 1.9.5, 1.9.6, 1.9.22, 1.9.23) · The printer shows an error code or message
• Form 4: debris in the tank (errors 1.1.6, 1.1.7, 1.7.2, 1.7.3), damaged film or tank not detected · The printer shows an error code or message · The print sticks to the vat film (FEP) · Resin leak or torn film in the vat

Phrozen (2 guides)

• Phrozen Sonic: the LCD shows no image, flickers or the UV light looks weak (LCD test) · The LCD screen or UV light does not light up
• Phrozen Sonic: the print does not stick to the build plate; calibrate (level) the Z axis with paper · The resin print does not stick to the build plate

Prusa (11 guides)

• First layer too high, too squished or uneven on MK4, MK4S or CORE One (load cell) · Uneven first layer (thin and thick areas) · Does not stick to the bed · Unlevel or warped bed
• Load cell errors on MK4, MK4S and CORE One · The printer shows an error code or message
• MINI+: wrong first layer height, Live Adjust Z at its limit or Z rises while leveling (SuperPINDA) · Uneven first layer (thin and thick areas) · Does not stick to the bed · Homing or a sensor fails (endstop, levelling)
• MK3S+: the IR filament sensor fails (asks for filament change, no autoload or no run-out detection) · The printer shows an error code or message · Problems after a firmware update
• MK3S+: wrong first layer height, nozzle hits the bed or bed leveling fails (SuperPINDA) · Uneven first layer (thin and thick areas) · Does not stick to the bed · The printer shows an error code or message
• Multi-tool XL: a tool is not picked up or parked properly (dock and toolchanger) · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message
• Multi-tool XL: colours do not line up or tool offset calibration fails · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message
• My Prusa shows an error with a five-digit code and a QR code · The printer shows an error code or message
• SL1S SPEED: the print does not stick to the platform and stays on the film · The resin print does not stick to the build plate · The print sticks to the vat film (FEP)
• The MMU3 does not load, does not unload or the filament gets stuck · The multi-material system fails (does not load, cut or jams) · The printer shows an error code or message · Clogged nozzle or hotend
• The Nextruder filament sensor does not detect filament properly (MK4, MK4S, CORE One) · The printer shows an error code or message

Qidi (3 guides)

• QIDI Plus4: filament jams in the extruder or the hotend · Clogged nozzle or hotend · No filament comes out
• QIDI Q1 Pro: errors «Probe samples exceed samples_tolerance», «ADC out of range» or «MCU MKS_THR» · The printer shows an error code or message · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · Unlevel or warped bed
• QIDI X-Plus 3: the bed crashes into the nozzle or the first layer does not stick · Uneven first layer (thin and thick areas) · Does not stick to the bed · Homing or a sensor fails (endstop, levelling)

Raise3D (1 guide)

• E2: in duplication or mirror mode one head does not stick or scrapes, or the two heads are not aligned · Uneven first layer (thin and thick areas) · Unlevel or warped bed · The multi-material system fails (does not load, cut or jams)

RatRig (1 guide)

• V-Core: the bed mesh looks tilted or twisted and the first layer is uneven · Unlevel or warped bed · Uneven first layer (thin and thick areas) · Does not stick to the bed

Snapmaker (3 guides)

• Artisan: errors 13-12, 13-17, 13-18, 13-13 or 13-15 on the dual extrusion module · The printer shows an error code or message · Homing or a sensor fails (endstop, levelling)
• J1/J1s: the two print heads do not line up or bed calibration fails · The multi-material system fails (does not load, cut or jams) · Unlevel or warped bed · The printer shows an error code or message
• Snapmaker 2.0: the touchscreen does not detect the 3D printing module or any toolhead · The printer shows an error code or message

Sovol (4 guides)

• SV06: clogs mid-print or under-extrudes (bi-metal heat break, retraction and gear) · Clogged nozzle or hotend · Too little filament (under-extrusion) · No filament comes out
• SV08: no filament comes out, the extruder spins without feeding or it clogs mid-print · Clogged nozzle or hotend · No filament comes out · The extruder clicks or skips
• SV08: the screen shows «Error 8» (or 21 or 3): how to find the cause from the Mainsail message · The printer shows an error code or message · Temperature error (MINTEMP, MAXTEMP, thermal runaway) · A fan does not spin or is noisy
• SV08: the Z probe fails or the bed mesh is very uneven («probe triggered prior to movement», «No trigger on z…») · Homing or a sensor fails (endstop, levelling) · Unlevel or warped bed · The printer shows an error code or message

UltiMaker (2 guides)

• UltiMaker S: print core not recognised, incompatible or clogged, or the feeder grinds the filament · The printer shows an error code or message · Clogged nozzle or hotend · The extruder grinds or snaps the filament · Too little filament (under-extrusion)
• UltiMaker S: the two materials do not line up or there is a layer shift when switching print cores · The multi-material system fails (does not load, cut or jams) · Shifted layers (layer shift)

Voron (3 guides)

• Newly built Voron: motors reversed, homing the wrong way or endstops not responding · Homing or a sensor fails (endstop, levelling) · Problems after a firmware update
• Voron 2.4 and Trident: QUAD_GANTRY_LEVEL or Z_TILT_ADJUST fails or does not converge · Unlevel or warped bed · The printer shows an error code or message · Uneven first layer (thin and thick areas)
• Voron Trident and 2.4: A/B belts loose, too tight or uneven · Loose belts · Noise or rubbing when the axes move