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Considering Getting a Techsew Sewing Machine. Need Advice.


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Posted
6 hours ago, dikman said:

Personally, I think brush motors are smoother at lower speed but unfortunately most of the servos are now brushless.

Most of the push button brushless servos I have or had start with a jolt at 200 rpm, but are cool and fairly quiet. Clutch motors I have run at 1725 rpm and throw heat and noise. I have no trouble feathering the clutches in. Just imagine if some developer, or a kit-basher was to incorporate an adjustable clutch into a push button controlled brushless servo motor! That would be interesting! The motor would spin at whatever maximum speed the user preset and the clutch would take care of feathering it in and out from zero rpm, just like the brush types, but with more torque at startup. Less heat and noise than a standard clutch motor and plenty of torque.

Posted IMHO, by Wiz

My current crop of sewing machines:

Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.

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Posted
4 hours ago, Wizcrafts said:

 Just imagine if some developer, or a kit-basher was to incorporate an adjustable clutch into a push button controlled brushless servo motor!

Now that IS an interesting concept.

Machines wot I have - Singer 51W59; Singer 331K4; Seiko STH-8BLD; Pfaff 335; CB4500.

Chinese shoe patcher; Singer 201K (old hand crank)

  • Members
Posted

Thanks Wiz, you just gave me an idea.

I have a constant running motor on my 31K47 and I was thinking of just using a servo motor, but as the transmitter works good, I just might try that.

Bert.

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