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["dual drive","dual drive extruder","dual extruder","extruder","LDO","thingiverse extruder","thingiverse hotend"]
What's changed from v1
-
DuPont Delrin molded planetary gears
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Glass fiber reinforced Nylon housing and latch
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Filament guide part of the extruder housing
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PTFE tube connector on top
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New stepper motor LDO-36STH20-1004AHG - 20mm long with more torque
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Some internal bearings dimensions has been changed to simplify assembly and improve the molding process quality
Firmware configuration
-
Stepps: 650-700 steps/mm at 16 micro-stepping
-
Acceleration: 600 mm/s^2
-
Maximum instantaneous speed change (jerk): 300 mm/min(RRF), 5 (Marlin)
-
Maximum speed: 3600 mm/min
-
Pressure advance: 0.02s
-
Retraction: ~1.2mm
-
Retraction speed: 60mm/s
-
Motor current:
-
0.5A Peak or 0.35A RMS (LDO-36STH17-1004AHG and LDO-36STH20-0504AHG)
-
1A Peak or 0.7A RMS (LDO-36STH20-1004AHG)
NOTE: Please pay attention which current type your firmware is configuring and set accordingly:
-
Marlin and Klipper firmware RMS currents are configured
-
Reprap firmware for the Duet family Peak currents are configured
