3D printing using a very light DIY direct drive extruder- 88 grams

thingiverse

DIY Very light(maybe lightest noncommercial)3d printing direct drive extruder using RC servo motor(with metal gears). with 15.5 kg-cm torque (3.5 more than Nema 17 torque).The servo itself weighs 55 grams. Extruder assembled is 88 grams. Servo is using a diy electronic driver(using cheap parts) based on a magnetic encoder with AS5040 and an arduino microcontroller(ATmega328). My extruder is mounted on a quick mounting assembly for easy replacement and service. I'm working now on adapting a lighter metal servo around 30 grams. Bill of materials: 1x RC standard servo, I used FT5316M; 1X M105 ZZ -ID 5mm bearing 1x E3D v6 hotend; 1x M3x20 mm screw; 1x M3x40 mm screw; 2x M4x33 mm screw; 1x 8x12 mm extruder spring; 1x M3 special nuts; 1x tube PTFE 4mm diameter cut at length; 1x 25 mm stainless steel 5mm diameter with M3 thread at the end to screw it in the servo. 1x set of Gears for extruder are from trianglelab sold on aliexpress or other vendors see below 1X DIY magnetic encoder(with AS5040 or other similar) 1X DIY servo driver(you can find the schematic following the instructables link) to install on 3D printer mother board to replace the original extruder step motor driver. https://es.aliexpress.com/item/4000021186440.html?gatewayAdapt=glo2esp&spm=a2g0o.detail.1000060.1.18be1604lDuD46&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.169870.0&scm_id=1007.13339.169870.0&scm-url=1007.13339.169870.0&pvid=d9578aa4-3999-4f1c-b354-b0c8dfeb3b70&_t=gps-id:pcDetailBottomMoreThisSeller,scm-url:1007.13339.169870.0,pvid:d9578aa4-3999-4f1c-b354-b0c8dfeb3b70,tpp_buckets:668%232846%238110%231995&pdp_ext_f=%257B%2522sku_id%2522%253A%252212000025391647649%2522%252C%2522sceneId%2522%253A%25223339%2522%257D&pdp_pi=-1%253B27.18%253B-1%253B-1%2540salePrice%253BUSD%253Brecommend-recommend This [project is inspired and adapted for my printer from below project. https://www.instructables.com/RCServo-Extruder-96-Grams-Direct-Drive/ https://www.thingiverse.com/thing:2509305