Doughty Drive
Copyright   2009 DoughtyDrive.com
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Click here for machine demo
Click here for machine demo
Two of these drives are connected together with a rotary connecting plate and form the B/C drive.
They are both stepper motor driven, nema 24, 300 oz./in, @ 2.8 amps.
The stepper motors are an integral part of the drives and are included, servos are not an option at this time.





DD100
This ratio gives a very good resolution, 66,666.666 steps per rev, and 185.185 micro steps per deg., with positional repeatablity of + - 30 arc seconds.
The units have a maximum fast travel of 120 degs per second, or 20 RPM.
With a chuck attached, the units can be mounted vertically or horizontally, like an indexing head or rotary table.
The DD100 now incorporates slew bearings with a 28mm hole through the centre, enabling cables, hoses etc. to pass.
The drive also includes a homing sensor. 
The weight is just 3.5 Kg. (8lb)
                       
One of the main features of the Doughty Drive's unique design is that there is NO backlash.
It has a reduction ratio of  33.33:1,giving great holding torque of 20 ft/lbs - 27 Nm.
B/C Drive
With the use of a 1.5 HP or 2 HP spindle, or similar sized router, the drives are suitable for routing foam, wood or light aluminium.
The drives include slew bearings with a 28mm hole through the centre, enabling cables, hoses etc. to pass. also included are homing sensors.
The weight is just 9.5 Kg. (21lb)