If it isn't broken, there's no need to fix it

摘要

The first thing to think about is simple; the less complex the motor the better. From a repair perspective, if you can use a standard motor, it will be cheaper to install, there will be less to go wrong and if something does go wrong the repair will be easier and cheaper. Occasionally there is the need for a sophisticated controller to alter the speed. Equally, it may be that you need an extremely high precision motor for your application. Nevertheless, there are still some tricks of the trade you can employ to make your project cheaper and more effective in the long term.