how do i make a gearbox for a 12 v dc motor? it is already fitted with a metallic worm.

i have four rs 385 ph motors manufactured by mabuchi..i need to make gear boxes for them to make them spin around 150 rpm and its already fitted with a metallic worm...any idea?

7ofclubs6 years ago
What speed are your motors spinning at now?
Dr.Bill8 years ago
Get free gear motors from wheel chair repair places. They will Give them to you for free. Thats where i get mine.