--- In
Homebrew_PCBs@yahoogroups.com, "Paul Symansky" <symansky@...> wrote:
>
> I'm fairly certain Cricuts use stepper motors. They do exhibit the
> characteristic hum of stepper motors, and servos motors would undoubtedly
> raise the cost significantly. Nonetheless, the device can cut fairly
> complex patterns quickly (< 15 minutes for the most complex patterns I've
> cut).
Many desktop printers use DC servo motors -because- they are cheap. Epson and HP have optical encoder strips, because the X direction is controlled by a DC servo motor.
Steve Greenfield