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Craftbot is a Hungarian additive-manufacturing OEM that develops and manufactures FFF/FDM 3D printers and supporting 3D-printing technology. Its product range spans compact desktop printers through larger professional and industrial machines, including single-extruder and independent-dual-extruder (IDEX) systems. The company also develops its own firmware and CraftWare slicing software and supplies filaments and related ecosystem products. Craftbot targets professional, industrial, educational, medical, prototyping, and small-batch manufacturing applications and is particularly known for its robust plug-and-play desktop printers, large-build-volume systems, and Flow-series IDEX machines.
Filament becomes lodged in the nozzle or hotend, causing little or no material to extrude. Craftbot identifies extruder clogging as the most common printing problem, often occurring after filament changes, improper loading temperatures, or accumulated material.
The extruder drive gear may slip, become packed with filament debris, loosen on its shaft, or grind the filament instead of feeding it. The result is under-extrusion, clicking or grinding noises, or complete loss of filament output.
Craftbot FLOW-series printers can report filament-flow errors even when filament is present, particularly when extrusion becomes inconsistent or flexible material stretches through the sensor. Incorrect extruder tension, calibration problems, clogs, or sensor inaccuracies can repeatedly interrupt prints.
An incorrectly leveled build plate or inaccurate nozzle-to-bed offset causes poor first layers, nozzle scraping, or prints that fail to adhere. FLOW models additionally depend on mesh leveling and BL-Touch measurements, so probe or calibration problems can cause recurring leveling errors.
The BL-Touch leveling probe pin used on many Craftbot FLOW models can become bent or broken, preventing reliable automatic bed measurements. A damaged or inaccurate probe can cause incorrect Z compensation and failed first layers.
Loose, stretched, or worn X/Y belts can allow the print head to lose positional accuracy, producing visibly shifted layers. Severe motion problems may also produce grinding or growling noises and can involve pulleys, stepper motors, or motor-driver faults.
Failures in heater wiring, thermistors, connectors, or temperature-sensing circuitry can prevent the hotend from reaching or maintaining the commanded temperature. Craftbot firmware updates have specifically addressed temperature-sensor stability, while field reports also document broken hotend heater wiring.
Excessive heat traveling upward through the hotend can soften filament before it reaches the melt zone, causing the filament to swell or jam. This is especially problematic during long prints or dual-extruder tool changes and may cause the extruder gear to grind into the filament.
Craftbot printers can develop touchscreen calibration, visibility, freezing, or boot/interface problems that prevent normal printer control. Support documentation includes touchscreen calibration procedures, while reported cases include Craftbot Plus Pro units freezing after firmware updates and FLOW interfaces failing to load.
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