RE: [CAD_CAM_EDM_DRO] Help with CnC for school

> -----Original Message-----
>
> I have loooked around at various web sites. I have found many
> different types of designs. I have a few questions.
>
> 1. Has anyone used motors from flatbed scanners to control a mill
> axis?

They are likely too small to give you the torque you need.

> 2. How do you compensate for different steppers to maitain axis
> controls.

Electrically you handle it from the drives and power supply. Each drive
is set (how depends upon the type and model of drive) for the electrical
requirement of the motors. On some of the old non-chopper type drives
you may need to use separate power supplies for each motor and use
different voltages also.

> 3. If a motor has not emough torque can you gear it down to avoid
> stalling

This can be a problem with stepper motors. As the RPM increases the
torque drops off rapidly. In some (many) cases you will actually get
less torque with a geared down motor than with a direct drive. All
depends upon the drives, the gearing, the particular motors, the power
supply voltage, etc.

Tim
[Denver CO]
Sherline Products at Deep Discount
Mach1 & DeskCNC with Credit Card ordering
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www.KTMarketing.com/Sherline