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Topic Review (Newest First)
Today 06:25 PM
John long Welded up my RH trunk weather strip channel today. It has pulled some, as I knew it would, and will have to be diced in the radius of the corner. Anytime you do this much welding on a piece that is free to move, you can be sure the shrinkege from the welding will cause it to do just that.

John







After I finished welding it up and ground the welds, I ran it back through the sand blast cabinet.






This was a lot of work and to be honest will not be any better than the other side I made from scratch. Not that it won't work. Just an observation..... Making new pieces that are a good heavy 18 ga is really just as easy, stronger, and more rewarding.
Yesterday 01:00 PM
123pugsy
Quote:
Originally Posted by John long View Post
That is a really neat system Pugsy but you know I am way to frugal () to do that.

John
I know about the frugal part. Just pointing out that not every AC motor can be speed controlled.
Yesterday 09:43 AM
John long
Quote:
Originally Posted by 123pugsy View Post
Over a year ago, I was researching how to speed control our drill press at the shop because moving the belt position was just not working.
I ended up buying a 220 volt, 3 phase motor and VFD to control it.
The VFD wouldn't work on the regular motor. It's kind of cool as the drill still runs on 120 volts and can be moved anywhere in the shop.

https://www.youtube.com/watch?v=RGbT...t15ixvfehdpw0w
That is a really neat system Pugsy but you know I am way to frugal () to do that.

John
Yesterday 06:31 AM
123pugsy
Quote:
Originally Posted by 1971BB427 View Post
They can all be speed controlled, but not all with the same type of controller! Some need frequency controllers to slow the frequency (hertz) and others can be controlled by reducing the voltage. Some AC motors will burn up with voltage reducing controllers.
Over a year ago, I was researching how to speed control our drill press at the shop because moving the belt position was just not working.
I ended up buying a 220 volt, 3 phase motor and VFD to control it.
The VFD wouldn't work on the regular motor. It's kind of cool as the drill still runs on 120 volts and can be moved anywhere in the shop.

https://www.youtube.com/watch?v=RGbT...t15ixvfehdpw0w
Yesterday 04:47 AM
496CHEVY3100 I bought a variable speed control from sears for my celing fan that will operate up to 1 hp motors for I think it was around $19 it will operate at full speed or go slow enough that I can see the blades turn ..Just a thought .
07-04-2015 08:44 PM
41'srfun I'm not an expert in the field. but I think that you can control the speed of an AC motor If it is a brush type motor. Most electric drills are brush type and it may depend on how the field is wound also. If it is a brush type motor you may be able to use a rheostat. If it doesn't have brushes then you have to have a controller that will reduce the hertz. (I think) LOL!
07-04-2015 07:42 PM
John long
Quote:
Originally Posted by 123pugsy View Post
AC motors are funny. Some can be speed controlled and some not. I bought a router speed control but it didn't work on my router. I think it worked on my 4-1/2" angle grinder though. Big help there.
Quote:
Originally Posted by 1971BB427 View Post
They can all be speed controlled, but not all with the same type of controller! Some need frequency controllers to slow the frequency (hertz) and others can be controlled by reducing the voltage. Some AC motors will burn up with voltage reducing controllers.
What do I need to know to figure out how to control mine.

John
07-04-2015 07:28 PM
1971BB427
Quote:
Originally Posted by 123pugsy View Post
AC motors are funny. Some can be speed controlled and some not. I bought a router speed control but it didn't work on my router. I think it worked on my 4-1/2" angle grinder though. Big help there.
They can all be speed controlled, but not all with the same type of controller! Some need frequency controllers to slow the frequency (hertz) and others can be controlled by reducing the voltage. Some AC motors will burn up with voltage reducing controllers.
07-04-2015 03:46 PM
John long
Quote:
Originally Posted by 123pugsy View Post
AC motors are funny. Some can be speed controlled and some not. I bought a router speed control but it didn't work on my router. I think it worked on my 4-1/2" angle grinder though. Big help there.
Hmmmm, Interesting.

John
07-04-2015 08:16 AM
123pugsy
Quote:
Originally Posted by John long View Post
LOL, The garage door opener in question is on My bead roller.

I checked for a tag with the electrical information but did not find one on it. I guess I would have to tear it apart and see if there is anything on the motor. It is a 1/2 HP Craftsman. I don't know if I could find anything on line or not but I would assume it would be an A/C motor.

John
AC motors are funny. Some can be speed controlled and some not. I bought a router speed control but it didn't work on my router. I think it worked on my 4-1/2" angle grinder though. Big help there.
07-04-2015 08:09 AM
boothboy
Quote:
Originally Posted by John long View Post
LOL, The garage door opener in question is on My bead roller.

I checked for a tag with the electrical information but did not find one on it. I guess I would have to tear it apart and see if there is anything on the motor. It is a 1/2 HP Craftsman. I don't know if I could find anything on line or not but I would assume it would be an A/C motor.

John
BB
07-04-2015 08:05 AM
John long
Quote:
Originally Posted by boothboy View Post
John why do you want to control the speed of your garage door? Playing tricks on the little lady?

BB
LOL, The garage door opener in question is on My bead roller.

I checked for a tag with the electrical information but did not find one on it. I guess I would have to tear it apart and see if there is anything on the motor. It is a 1/2 HP Craftsman. I don't know if I could find anything on line or not but I would assume it would be an A/C motor.

John
07-04-2015 07:28 AM
boothboy
Quote:
Originally Posted by John long View Post
Does anyone know if a sewing machine pedal can control the type of motor on a garage door opener?

John
John why do you want to control the speed of your garage door? Playing tricks on the little lady?

BB
07-04-2015 05:04 AM
123pugsy
Quote:
Originally Posted by John long View Post
Does anyone know if a sewing machine pedal can control the type of motor on a garage door opener?

John
DC motors can be speed controlled but AC it depends on the type of motor.

What's the voltage info? I can do some googlin'.
07-03-2015 07:15 PM
John long
Quote:
Originally Posted by Too Many Projects View Post

As for speed control on the bead roller, look into a pedal feed for a sewing machine. I've heard they work for that.
Does anyone know if a sewing machine pedal can control the type of motor on a garage door opener?

John
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