SB47 Belted Extruder
thingiverse
The latest version of the lightweight belted extruder is perfect for the SquareBOT project and other applications. A quick release mount plate for the MGN12H carriage is also included with this upgrade. It works flawlessly every time. The gear ratio is 1:4, designed specifically to work with 1.75mm filament. BOM: - Stepper motor: NEMA16/17, 20-26mm in size ("pancake") with a strong performance. - Timing belt: GT2 79 teeth (158mm) for precise movement. - Timing pulley for the motor: GT2 16T for smooth operation. - Printable timing pulley: GT2 64T for easy printing. - Ball Bearings: F685ZZ (with flange) - 2 pieces, V625ZZ (V-groove 1mm) - 1 piece for stability. - Bearing guidlers: 10 and 26mm pins with a diameter of 5mm for precise alignment. - Feed gear: d1 8mm, d2 12mm, bore 5mm, height 14mm, 1mm groove (1.75 filament) for smooth feeding. - Extruder spring: 7mm in diameter and 18-22mm long for optimal tension. - HotEnd: E3D V6 compatible (bowden/long-distance preferable) for efficient heat transfer.
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