Roberta Spinner

* Motor guaranteed 10 years, even under commercial use!

* Handles any type of fibre with ease
* Uses less power than a light bulb
* Crafted of walnut, with glossy dark furniture finish
* Sliding hook on the flyer arm
* User-friendly production wheel
* Saves your knees-- no treadling!

The Roberta is An electronic spinner, not electric.  Read the article below to find out the difference.

>Choose the model that runs off of a battery or solar panel. The dual-powered model runs on 120 and 12 volts.

>Choose two standard-size bobbins with one jumbo-size, or all jumbo bobbins.  The standard bobbin holds five ounces of yarn and the jumbo eleven ounces.  There is a built-in Lazy Kate that is so convenient for plying.

The Roberta has been hand-crafted in Australia for more than 35 years.  It has been called the "Rolls Royce" of spinners for it's quality, finish and durability.

Price shown is for single-power Combo model with two standard bobbins and one jumbo.  We are currently including a padded, nylon carry bag with each Roberta sold. 
 

The Difference Between Electric and Electronic

 The primary difference between electric and electronic spinning is the durability of the motor.

Electric -- power goes straight to the motor and is adjusted with a speed control. A resistor controls the voltage going to the motor, making it go slower or faster.  Electric (sewing-machine-type) motors aren’t designed for spinning, which demand high torque (twisting effort of the shaft) at slow speeds. Electric motors are designed to run at high speeds under load, with AC (alternating current) power.  If the voltage is restricted to slow the motor down, it stresses the motor and damages the armature (the middle core).  Such stress and damage can cause the motors to fail. They’re not likely to last more than 5 years with constant use.

Electronic -- power is modified to the motor and controlled according to the demands of the person using it.  The disadvantages of the electric motor are eliminated. Voltage is reduced and changed to DC (direct current) power.  DC current provides strong torque to the motor at slow speeds and the DC motor cannot be harmed, because of lower voltage delivered from the electronics. In addition, the current is automatically adjusted between amperage and voltage as the load and speed factors change.  Electronic components in the circuit – transistor, transformer, bridge rectifier, potentiometer, capacitor, diodes – accomplish this.

 Motorized spinners come in two designs: bobbin-driven machines have the Irish brake design and flier-driven machines have the Scotch tension design.  The Roberta is bobbin driven, giving better control of the drafting rate.  Flier-driven machines have a disadvantage. The speed must be altered continually to suit the drafting speed or spinning speed. Failure to handle this correctly affects the quality of the yarn produced.  The Roberta electronic spinner avoids this deficiency because the motor speed affects the bobbin, not the flier. The motor affects only the twist rate, not the pull-in rate for drafting. The result is a smoother start up and a more consistent yarn.

  This spinner is based on the same design found in modern spinning mills today.  Of course, mills run at 6000 revolutions per minute, a little faster than the Roberta!

             The Roberta has a great advantage over other spinners with its bobbin-driven, electronic system.  The 10-year guarantee on the motor is unmatched.  Try a Roberta and you’ll be impressed with its quality and ease of use.

For further information:

Legacy Studio

1.866.932.0932 toll free