A set of STL files for printing a user configurable trommel. 
 
A Trommel is a rotating mechanical device for sorting material into different sizes, used for soil , gravel small rocks etc.
 
This design can be configured with any number of bays and with 3d printed or self constructed bays, It requires a 555 motor gearbox running around 500 RPM, A 20 or 22 tooth 2mt pulley and a 2mt bet approx 600mm long. The motor can be manually switced or remotely controlled. We recommend the use of a 12v 7AH battery to run the motor.
 
The trommel berrels and feed spiral are usre configurable to suit the users needs. All files can be printed on a printer with a 200x200mm bed. PLA is fine for indoor use but ABS or ASA is recomended for outdoor use .
 
Nearly 60 files in the set