CGS (Conrad Gear System) Extruder; yet anther metal gear extruder by Louis_Cypher

Last crawled date: 3 years ago

User alocinb asked me to publish this one, so here we go
Purpose
I designed this since the Gregs Wade was too bulky for my liking and I liked the idea of having a metal gear.
Use
3mm filament. Intended for sparkcube but not limited to (uses standard gregs flange)
Design Concept
The extruder uses standard metal gears available at www.conrad.de namely a 12 teath gearwheel and a 60 teeth gearwheel. The 60teeth gearwheel runs a cut down (to 35mm) standard M5x50 screw driving the MK8 gear. The axle is carried by two 625 bearings.
There is an option to mount a 40x40 fan to the back to cool down PLA via the channel running towards the hotend
BOM
MK8 gear
1x screw M5x50 (needs to have a shaft)
4x screw M3x12 (length depends on your motor)
2x 625 bearings
M5 x50 or similar with shaft long enough to fit the gears (25-35mm) or a piece of 5mm smooth rod
Fan+ screws (optional)
Threaded rod M4 plus nuts for the idler
Two springs for the idler
Tools
No special tools needed. You have to drill the gears to fit 5mm screws
Options
There are two versions of the body. One having an attachment for the sparkcube limit switch and one without
Experiences/ does it work
I used it for about half a year and >5kg of filament and liked it. I changed to 1.75mm filament and hence now use a direct extruder (to be uploaded)