The Roberta Spinner
Quiet* Hand-Crafted*Proven*Adaptable*Affordable
Efficient*Portable*Easy to Use!
*
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. 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 about 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. Please contact Legacy Studio for further information.
Roberta Electronic Spinner
The Difference Between Electric and Electronic Spinning
The primary difference between
electric and electronic spinning is the durability of the motor.
Electric means 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 means 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
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