Re: Two-speed sewing machines



<jaxashby@xxxxxxx> wrote in message
news:265ae072-31ef-4aed-9fa7-d111d2c53eea@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Mar 25, 9:19?am, Bill Boyce <w_bo...@xxxxxxxxxxx> wrote:
what? ?Thanks, JPBill

Use something called a "motor speed controller", available from
Grainger and others (about $40, for a sewing machine size
controller). It will slow down a "DC type" (essentially meaning it
has brushes) motor to near nothing, yet keep full power available to
the motor. I use one to tame my serger, which I still need a lot of
practice controlling.

I think all home sewing machines use DC type electric motors. I
believe industrial machines, with the big motors under the table, use
phase induction (right term?) type motors which can't be effectively
controlled for speed (except with a friction clutch). Maybe Ron can
comment.

I bought a motor speed controller on ebay for about $8, plus shipping,
as I recall. I recall a number were available on ebay.


Many of the newer machine (computer) use a DC motor. Most older machine use
AC the ones with the brushes.

The Viking uses the slip clutch also, and right up through the 6000 series
machines.


--
Ron Anderson A1 Sewing Machine
18 Dingman Rd Sand Lake, NY 12153
http://www.a1sewingmachine.com



.

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