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26th July 09, 08:29 AM
#1
I just love those Singers with the external belt. They were a transition between treadle and motor power. Singer used to advertise that a machinist could keep on going after a power cut. Is this one of the constant speed motor types, with the speed controlled by a clutch?
Regards
Chas
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4th August 09, 09:11 PM
#2
 Originally Posted by Chas
I just love those Singers with the external belt. They were a transition between treadle and motor power. Singer used to advertise that a machinist could keep on going after a power cut. Is this one of the constant speed motor types, with the speed controlled by a clutch?
If it's a clutch motor, consider getting a servo motor to replace it. A servo motor is quieter, doesn't run except when it's sewing, has less vibration, saves energy, and is easier to control.
Most industrial machines are driven by belt: motors are fairly expensive, and are the only part of the machine that's expected to wear out. An external motor allows the motor to be changed: the same head with a 1/4 HP high speed motor is suited for entirely different set of tasks as would with a slower speed 3/4 HP motor. Now that decent servo motors are available at reasonable cost, direct drive machines are starting to show up, but mostly as pretty specialized or high-end machines.
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5th August 09, 07:24 AM
#3
I second that advice. I bought servo motor from Artisan sewing in LA for $160 new. I went from a 3600 RPM to a 1800 RPM and it has a four position speed selector and is way more controllable than the clutch motor. Also, it only spins when you push the pedal. It still can sew faster than I can keep up with. Great investment.
Dale
 Originally Posted by vorpallemur
If it's a clutch motor, consider getting a servo motor to replace it. A servo motor is quieter, doesn't run except when it's sewing, has less vibration, saves energy, and is easier to control.
Most industrial machines are driven by belt: motors are fairly expensive, and are the only part of the machine that's expected to wear out. An external motor allows the motor to be changed: the same head with a 1/4 HP high speed motor is suited for entirely different set of tasks as would with a slower speed 3/4 HP motor. Now that decent servo motors are available at reasonable cost, direct drive machines are starting to show up, but mostly as pretty specialized or high-end machines.
--Working for the earth is not a way to get rich, it is a way to be rich
The Most Honourable Dale the Unctuous of Giggleswick under Table
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