Wizcrafts Report post Posted October 30, 2009 I have always had clutch motors on my sewing machines and currently have one driving my walking foot machine. It serves me well, but is hard to control at very slow speeds. It wants to either stop or run, when I want it to tick-tock around curves and strap tips. I am considering buying a servo motor to replace it, but am curious about how they are controlled. I want one that will go from about 1 stitch per second, with the floor pedal backed nearly off, smoothly up to full speed (as per my pulley ratio) with the pedal fully down. It seems that every servo motor I read about is controlled by a pot on the back of the motor, with no mention of the foot pedal having any control over speed (or am I mistaken?). Are there any brands of 1/2 HP servo motors that are speed controlled by the foot pedal, rather than just by a knob on the back of the motor? In other words, behave the same as a clutch motor; from a dead stop at heel down, through variable very slow through medium speeds as you toe down, up to the motor's full speed at full toe down. If so, what are those brands or models and who has the best prices for them? If there aren't any such animals, are the pot controlled motors just switched to full on when you press down of the floor pedal, with the pot determining the one speed at which they run? Do they come to a dead stop when you heel down, like a clutch motor? Quote Share this post Link to post Share on other sites
Art Report post Posted October 30, 2009 The answer is somewhere here on the board. We have covered it before. However, to get your questions answered, call Steve Tayrien at 1-866-962-9880. Art I have always had clutch motors on my sewing machines and currently have one driving my walking foot machine. It serves me well, but is hard to control at very slow speeds. It wants to either stop or run, when I want it to tick-tock around curves and strap tips. I am considering buying a servo motor to replace it, but am curious about how they are controlled. I want one that will go from about 1 stitch per second, with the floor pedal backed nearly off, smoothly up to full speed (as per my pulley ratio) with the pedal fully down. It seems that every servo motor I read about is controlled by a pot on the back of the motor, with no mention of the foot pedal having any control over speed (or am I mistaken?). Are there any brands of 1/2 HP servo motors that are speed controlled by the foot pedal, rather than just by a knob on the back of the motor? In other words, behave the same as a clutch motor; from a dead stop at heel down, through variable very slow through medium speeds as you toe down, up to the motor's full speed at full toe down. If so, what are those brands or models and who has the best prices for them? If there aren't any such animals, are the pot controlled motors just switched to full on when you press down of the floor pedal, with the pot determining the one speed at which they run? Do they come to a dead stop when you heel down, like a clutch motor? Quote Share this post Link to post Share on other sites
Wizcrafts Report post Posted October 30, 2009 Bob Kovar contacted me from Toledo Sewing Machines. He has exactly the servo motor I described. Huzzah! From 1 stitch per second up, all foot controlled, with a built-in 3:1 reduction gear, yielding 500 rpm max at the shaft, with 3x the torque of a straight servo motor. Quote Share this post Link to post Share on other sites
Jimbob Report post Posted November 8, 2009 Bob Kovar contacted me from Toledo Sewing Machines. He has exactly the servo motor I described. Huzzah! From 1 stitch per second up, all foot controlled, with a built-in 3:1 reduction gear, yielding 500 rpm max at the shaft, with 3x the torque of a straight servo motor. Hello Can u provide me with Bob's number or e-mail....I am also planing to buy just that kind of motor for my Adler 105-64. Tnx a lot!! James Quote Share this post Link to post Share on other sites
Wizcrafts Report post Posted November 8, 2009 Hello Can u provide me with Bob's number or e-mail....I am also planing to buy just that kind of motor for my Adler 105-64. Tnx a lot!! James You can contact Toledo Industrial Sewing Machine Sales, at: 1-866-362-7397 - for information about these variable speed foot controlled servo motors. Quote Share this post Link to post Share on other sites
DougVL Report post Posted November 27, 2009 I have always had clutch motors on my sewing machines and currently have one driving my walking foot machine. It serves me well, but is hard to control at very slow speeds. It wants to either stop or run, when I want it to tick-tock around curves and strap tips. I am considering buying a servo motor to replace it, but am curious about how they are controlled. I want one that will go from about 1 stitch per second, with the floor pedal backed nearly off, smoothly up to full speed (as per my pulley ratio) with the pedal fully down. It seems that every servo motor I read about is controlled by a pot on the back of the motor, with no mention of the foot pedal having any control over speed (or am I mistaken?). Are there any brands of 1/2 HP servo motors that are speed controlled by the foot pedal, rather than just by a knob on the back of the motor? In other words, behave the same as a clutch motor; from a dead stop at heel down, through variable very slow through medium speeds as you toe down, up to the motor's full speed at full toe down. If so, what are those brands or models and who has the best prices for them? If there aren't any such animals, are the pot controlled motors just switched to full on when you press down of the floor pedal, with the pot determining the one speed at which they run? Do they come to a dead stop when you heel down, like a clutch motor? The knob sets the MAXIMUM speed of the motor. The original clutch pedal connects to the motor and controls its speed from zero to the max speed you set with the pot (some have a switch instead). The pedal linkage operates a speed control pot built into the motor housing. Some servos I've read about do have a mechanical brake, though. That can make it hard to turn the handwheel while the motor is stopped. I think it's only on the older servos. Ask before buying. Artisan has one that can also add needle up/down at stop control to the machine. I plan to get one like that soon. Doug Quote Share this post Link to post Share on other sites
Cobra Steve Report post Posted November 27, 2009 The knob sets the MAXIMUM speed of the motor. The original clutch pedal connects to the motor and controls its speed from zero to the max speed you set with the pot (some have a switch instead). The pedal linkage operates a speed control pot built into the motor housing. Some servos I've read about do have a mechanical brake, though. That can make it hard to turn the handwheel while the motor is stopped. I think it's only on the older servos. Ask before buying. Artisan has one that can also add needle up/down at stop control to the machine. I plan to get one like that soon. Doug Hi Doug, we have them as well. If you need info on them, please call me at 1-866-962-9880. Thanks, Steve Quote Share this post Link to post Share on other sites
