This is a Remix of a remix that I liked. Since I only have 25mm motor, some modification was done.
mod1 gear fit 4mm of 25mm motor
mod2 holes to mount 25mm motor
mod3 extended case fit to seal the entire case(glue)
If you have any Questions feel free to ask in the comments I will try and get back with you.
parts used:
the motors I applied : 130RPM, enough speed and torque for 1kg filament.
GA25-370 - Buy GA25-370 with free shipping on AliExpress
Before you place order, do check out the specificaion S4f0c09e3174b48adb2955c52654431bbC.jpg (950×2635) (alicdn.com)
Pastamtic itself is here