Thingiverse
Greg´s Extruder 9:47 by alexrosa
by Thingiverse
Last crawled date: 3 years, 1 month ago
UPDATE 09-12-18
Change Idler to avoid bearing interference on assembly
UPDATE 07-13-17
I am very happy with this extruder, tested only with PLA with excellent results.
The filament duct has been moved to make filament changes easy.
Idler elongated to guide the filament.
Slot motor size passed to 5mm.
UPDATE 07-10-17
MainBody was separeted from hotend support.
Add E3D v6 direct (no bowden) support
Printed, now waiting for M8 Hobbed Bolt to make tests.
Well this is a remix of https://www.thingiverse.com/thing:961630 extruder, with very little changes to satisfy my needs. One of that is 9:47 gears ratio that in my case give me a 24mm3/s filament flow with 1.75mm filament and ATmega 16 MHz with RAMPS.
This design use:
3 - 608 bearing
1 - M8 50mm Hobbed Bolt with hob centered at 23.5mm (this can be changed with washers to your needs).
1 - M8 Self Locking Nut
1 - Nema 17 Motor
2 - M4 Allen Bolt 54mm long
2 - M4 Hex Bolt
2 - M4 Washer (to hold pressure springs)
2 - Extruder Pressure Springs
1 - M3 shaft to hold idler. A m3 bolt with nut can be used.
Change Idler to avoid bearing interference on assembly
UPDATE 07-13-17
I am very happy with this extruder, tested only with PLA with excellent results.
The filament duct has been moved to make filament changes easy.
Idler elongated to guide the filament.
Slot motor size passed to 5mm.
UPDATE 07-10-17
MainBody was separeted from hotend support.
Add E3D v6 direct (no bowden) support
Printed, now waiting for M8 Hobbed Bolt to make tests.
Well this is a remix of https://www.thingiverse.com/thing:961630 extruder, with very little changes to satisfy my needs. One of that is 9:47 gears ratio that in my case give me a 24mm3/s filament flow with 1.75mm filament and ATmega 16 MHz with RAMPS.
This design use:
3 - 608 bearing
1 - M8 50mm Hobbed Bolt with hob centered at 23.5mm (this can be changed with washers to your needs).
1 - M8 Self Locking Nut
1 - Nema 17 Motor
2 - M4 Allen Bolt 54mm long
2 - M4 Hex Bolt
2 - M4 Washer (to hold pressure springs)
2 - Extruder Pressure Springs
1 - M3 shaft to hold idler. A m3 bolt with nut can be used.
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