Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot pedal. I
want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I tried a
ceiling fan speed control which does contain the 3 speeds of high, medium
and low, and it's not what I want. For starters, low is obviously too low
since the motor only hums, medium appears to be OK speed wise but high is
too fast. I want to provide the wife the option of variable speeds.
Therefore, the big question is, doesn't anyone know if and/or what type of
speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v, 150watt
and 1.3 amps.

Thank you

"Smitty Two" wrote in message
news

OK, humor me. Why can't you dismantle the foot pedal and use the speed
control from it?

The pedal is not a dial type. When viewing the inside, the pedal makes
connects with layered contacts. In other words, as you push the pedal, it
connects with one contact, then further push connects with another contact
and so on as if stacking chips at the end of an arm. A dial controller has
the contacts in a circumference and increases power as the dial increases.

"Tony Hwang" wrote in message
...

Thank you


Hi,
Depends on motor design ie. number or amature poles, windings, etc.
If my wife wants something like that, I'd just experiment with electronic
rheostat until I hit the jack pot to her satisfaction.

That could get costly if I don't find the correct one soon enough.

Justin Time wrote:
Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot pedal. I
want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I tried a
ceiling fan speed control which does contain the 3 speeds of high, medium
and low, and it's not what I want. For starters, low is obviously too low
since the motor only hums, medium appears to be OK speed wise but high is
too fast. I want to provide the wife the option of variable speeds.
Therefore, the big question is, doesn't anyone know if and/or what type of
speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v, 150watt
and 1.3 amps.

Thank you


Hi,
Depends on motor design ie. number or amature poles, windings, etc.
If my wife wants something like that, I'd just experiment with
electronic rheostat until I hit the jack pot to her satisfaction.

In article ,
"Justin Time" wrote:

Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot pedal. I
want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I tried a
ceiling fan speed control which does contain the 3 speeds of high, medium
and low, and it's not what I want. For starters, low is obviously too low
since the motor only hums, medium appears to be OK speed wise but high is
too fast. I want to provide the wife the option of variable speeds.
Therefore, the big question is, doesn't anyone know if and/or what type of
speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v, 150watt
and 1.3 amps.

Thank you

OK, humor me. Why can't you dismantle the foot pedal and use the speed
control from it?

On 8/9/2011 9:15 PM, wrote:
On Tue, 9 Aug 2011 08:44:12 -0400, "Justin wrote:

Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot pedal. I
want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I tried a
ceiling fan speed control which does contain the 3 speeds of high, medium
and low, and it's not what I want. For starters, low is obviously too low
since the motor only hums, medium appears to be OK speed wise but high is
too fast. I want to provide the wife the option of variable speeds.
Therefore, the big question is, doesn't anyone know if and/or what type of
speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v, 150watt
and 1.3 amps.

Thank you


Back in the olden days these were universal motors and the foot pedal
was just a rheostat. Put a meter on it and see what you have.

If that doesn't work, wander around at MPJA.com. They carry all sorts of
strange stuff like that.

--
aem sends...

"Justin Time" wrote in message
...
Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot pedal.
I want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I tried
a ceiling fan speed control which does contain the 3 speeds of high,
medium and low, and it's not what I want. For starters, low is obviously
too low since the motor only hums, medium appears to be OK speed wise but
high is too fast. I want to provide the wife the option of variable
speeds. Therefore, the big question is, doesn't anyone know if and/or what
type of speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v,
150watt and 1.3 amps.

Thank you

Go to eBay and search for variac or powerstat.
There are all sorts of configurations. You need to compare the current/power
ratings of the sewing machine and select one of the smaller units.
I have a big variac but it is not up for sale as I can still find some use
for it.

Charlie

On Tue, 9 Aug 2011 09:33:10 -0400, "Justin Time" wrote:


"Tony Hwang" wrote in message
...

Thank you


Hi,
Depends on motor design ie. number or amature poles, windings, etc.
If my wife wants something like that, I'd just experiment with electronic
rheostat until I hit the jack pot to her satisfaction.

That could get costly if I don't find the correct one soon enough.


Sewing machine motors are universal motors. A router speed control
will work perfectly - you really want one that current (and counter
EMF) senses and PWM controls the speed.
A simple rheostat type control will cause overshot on startup and
speed decrease under load.

On Tue, 9 Aug 2011 21:49:51 -0400, "Charlie"
wrote:


"Justin Time" wrote in message
.. .
Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot pedal.
I want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I tried
a ceiling fan speed control which does contain the 3 speeds of high,
medium and low, and it's not what I want. For starters, low is obviously
too low since the motor only hums, medium appears to be OK speed wise but
high is too fast. I want to provide the wife the option of variable
speeds. Therefore, the big question is, doesn't anyone know if and/or what
type of speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v,
150watt and 1.3 amps.

Thank you

Go to eBay and search for variac or powerstat.
There are all sorts of configurations. You need to compare the current/power
ratings of the sewing machine and select one of the smaller units.
I have a big variac but it is not up for sale as I can still find some use
for it.

Charlie

And unlike a rheostat, a Variac can be grossly oversized and still do
the job

"hr(bob) " wrote in message
news:003a4fe0-cc6a-4806-a649-
Try a heavy-duty light dimmer, they work quite well. Get one rated
for as much wattage as the max motor wattage, probably a 200W dimmer
would give you some margin for a 150 Watt motor.,


After doing a Google search and reading a bit of info, that's exactly what I
decided to do. By chance, we had an extra dimmer from work and I brought it
home, connected it and it works very well.

On Tue, 9 Aug 2011 08:44:12 -0400, Justin Time wrote:

want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds,.........
BTW, if it helps, according to the label on the motor, it's a 110v, 150watt
and 1.3 amps.

Thank you

I have used these on several motors:
http://www.platt.com/product.aspx?zpid=393347

wrote in message
...
On Tue, 9 Aug 2011 21:49:51 -0400, "Charlie"
wrote:


"Justin Time" wrote in message
. ..
Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot
pedal.
I want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I
tried
a ceiling fan speed control which does contain the 3 speeds of high,
medium and low, and it's not what I want. For starters, low is obviously
too low since the motor only hums, medium appears to be OK speed wise
but
high is too fast. I want to provide the wife the option of variable
speeds. Therefore, the big question is, doesn't anyone know if and/or
what
type of speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v,
150watt and 1.3 amps.

Thank you

Go to eBay and search for variac or powerstat.
There are all sorts of configurations. You need to compare the
current/power
ratings of the sewing machine and select one of the smaller units.
I have a big variac but it is not up for sale as I can still find some use
for it.

Charlie

And unlike a rheostat, a Variac can be grossly oversized and still do
the job

One consideration, other than physical size and weight, is cost.

On Aug 10, 1:06*pm, "Charlie" wrote:
wrote in message

...





On Tue, 9 Aug 2011 21:49:51 -0400, "Charlie"
wrote:

"Justin Time" wrote in message
. ..
Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot
pedal.
I want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I
tried
a ceiling fan speed control which does contain the 3 speeds of high,
medium and low, and it's not what I want. For starters, low is obviously
too low since the motor only hums, medium appears to be OK speed wise
but
high is too fast. I want to provide the wife the option of variable
speeds. Therefore, the big question is, doesn't anyone know if and/or
what
type of speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v,
150watt and 1.3 amps.

Thank you

Go to eBay and search for variac or powerstat.
There are all sorts of configurations. You need to compare the
current/power
ratings of the sewing machine and select one of the smaller units.
I have a big variac but it is not up for sale as I can still find some use
for it.

Charlie

And unlike a rheostat, a Variac can be grossly oversized and still do
the job

One consideration, other than physical size and weight, is cost.- Hide quoted text -

- Show quoted text -

Try a heavy-duty light dimmer, they work quite well. Get one rated
for as much wattage as the max motor wattage, probably a 200W dimmer
would give you some margin for a 150 Watt motor.,

On Wed, 10 Aug 2011 09:35:20 -0400, "Justin Time"
wrote:


"hr(bob) " wrote in message
news:003a4fe0-cc6a-4806-a649-
Try a heavy-duty light dimmer, they work quite well. Get one rated
for as much wattage as the max motor wattage, probably a 200W dimmer
would give you some margin for a 150 Watt motor.,


After doing a Google search and reading a bit of info, that's exactly what I
decided to do. By chance, we had an extra dimmer from work and I brought it
home, connected it and it works very well.

If using a dimmer, you want one designed for dimming low voltage
lighting with magnetic transformers - not electronic. These have the
circuitry to handle the high voltage spikes caused by the circuit
opening (or commutate on the rizing edge instead of the faling)
Standard (decent quality) dimmers are 600 watt

In article ,
"Justin Time" wrote:

By chance, we had an extra dimmer from work

Yes, it's amazing how much "extra" stuff is just lying around at work.
Might as well take it home.

"Justin Time" wrote in message
...
Though, this isn't specifically about "Home Repair" it is an item in the
home.

I made a project for the wife which required the use of a sewing machine
motor (but not the sewing machine) which has the speed control foot pedal.
I want to remove the foot pedal and connect a dial speed controller,
preferably one with variable speeds, as opposed to a 3-speed type. I tried
a ceiling fan speed control which does contain the 3 speeds of high,
medium and low, and it's not what I want. For starters, low is obviously
too low since the motor only hums, medium appears to be OK speed wise but
high is too fast. I want to provide the wife the option of variable
speeds. Therefore, the big question is, doesn't anyone know if and/or what
type of speed control I can connect with the motor?

BTW, if it helps, according to the label on the motor, it's a 110v,
150watt and 1.3 amps.

Thank you


The normal sewing machine speed control has a stack of carbon disks.
Control is effectedby squeezing them together. (reduces resistance.)