Thanks for downloading!
We'd love to hear from you if the print was successful.
Mostly 3d printable dual gear extruder
Yet another mostly 3d printable dual gear extruder
3D printer parts and enhancements
GPLv3
A free software license that requires that all work based on this must also be free software as in freely remixable and sharable by anyone under the same license but may be used commercially.
Description
I wanted a little more torque (1:3 gearing) and also better filament grip. So I made a case that fits two gt2 pulleys and set of bondtech gears.
Materials and methods
Tension screw
(x1)extruder tension spring
(x1)m3 screw L50mm to tension latch
(x1) m3 brass incert L4mm for tension screw knob
latch
(x1)m3 screw L30mm on latch hinge
(x2)m3 spacer L4mm ID3mm OD6mm on hinge
Top case
(x3) m3 screw L30mm to fascen top case to center case
(x1) m3 brass incert L4mm for tension screw
(x3) m3 spacer L4mm ID3mm OD6mm for filament insert and hinge
(x1) mr128 bearing L3.5 ID8mm OD12mm for 8mm extruder shaft
(x1) bowden coupler M9 thread 6mm tube insert
Center case
(x3) m3 brass incert L4mm to fascen top fasceners
(x1) mr128 bearing L3.5 ID8mm OD12mm for 8mm extruder shaft
(x3) m3 screw L28mm to fascen center case to bottom case
Bottom case
(x4) m3 brass incert L4mm for center fasceners
(x1) mr128 bearing L3.5 ID8mm OD12mm for 8mm extruder shaft
(x2) m3 screw L11mm to fascen top part of extruder
(x2) m3 screw L25mm to fascen bottom part of extruder
Additional parts
(x1) Shaft L55mmxD8mm for gear (may have to add your own flat)
(x1) bondtech gear set with W4mmxL22mm rode
(x1) Gt2 60T pulley W10mm
(x1) Gt2 20T Pulley W10mm (.5-1mm out of shaft)
(x1) Gt2 closed loop belt L150mmxW10mm
(x4) m3 washers when fascening bolts to extruder motor
Update Ultimaker firmware
download Tinkergnome:
https://github.com/TinkerGnome/Ultimaker2Marlin/releases
Upload using cura:
settings --> printer --> Manage printers --> Select printer and click update firware --> Upload custom Firmware
Change esteps on extruder
Maintenance --> Advanced --> preferences --> Motion settings --> Axis steps/mm
Change E from 282 to 587 (number derived from calibration test)
Save changes
Invert extruder
Maintenance --> Advanced --> preferences --> Motion settings --> Invert Axis
Invert E
Save changes
(optional) Run a 100mm calibration test
Create a file called "calibration.gcode" and add the following entries
M302
G91
G1 E100.0 F300
G90
Save it to an SD card and print it. It should move 100mm of filament through the extruder.
Note: i Printed the case at 30mm/sec to keep tight tolerances.
Documents
Edit in 3dslashIssues
Issues are used to track todos, bugs or requests. To get started, you could create an issue.
Comments
Saul Mendoza published this design ago