Members gavingear Posted November 14, 2008 Members Report Posted November 14, 2008 If you look at the ACF-500 A at: http://www.artisansew.com/other.html It's a servo motor with needle positioner. It seems that this would be very handy for stopping in the down position (as when you want to pivot the work to change sewing direction), and to stop with the needle up so that the work can be removed, and thread snipped. Anyone using one of these? How well does it work? What kind of speed ranges do you get, and does the motor have sufficient torque at lower speeds? Thanks, Gavin Quote
Bree Posted November 15, 2008 Report Posted November 15, 2008 If you look at the ACF-500 A at:http://www.artisansew.com/other.html It's a servo motor with needle positioner. It seems that this would be very handy for stopping in the down position (as when you want to pivot the work to change sewing direction), and to stop with the needle up so that the work can be removed, and thread snipped. Anyone using one of these? How well does it work? What kind of speed ranges do you get, and does the motor have sufficient torque at lower speeds? Thanks, Gavin No I am using a non-positioning servo on my two machines with servos. I never felt the need for one because I am an expert flywheel jocky. I am always wanting to reach for the flywheel to do fine positioning. Jerry at Artisan had to convince me that it was easy to control their servo to sink the needle to the down position. I watched him do it on a T-3000 and he was right. It was easy. I have verified that on my own machine. You kick up the servo's low end torque by adding a speed reducer. That allows you to give it more oomph than you could without the reducer... or just grab that flywheel and give it a torque boost!! Quote Ride Safe! Bree 2003 Dyna Wide Glide Memberships: Iron Butt Association, Niagara Falls HOG, Wild Fire HOG NRA, Niagara County Sportsman's Association
hidepounder Posted November 15, 2008 Report Posted November 15, 2008 No I am using a non-positioning servo on my two machines with servos. I never felt the need for one because I am an expert flywheel jocky. I am always wanting to reach for the flywheel to do fine positioning. Jerry at Artisan had to convince me that it was easy to control their servo to sink the needle to the down position. I watched him do it on a T-3000 and he was right. It was easy. I have verified that on my own machine.You kick up the servo's low end torque by adding a speed reducer. That allows you to give it more oomph than you could without the reducer... or just grab that flywheel and give it a torque boost!! I'm with you Bree...I can't keep my hand off of the flywheel either. I think that's because I learned on an Adler 205 that went from 0-60 in about a 1/2" of pedal! Quote
Bree Posted November 15, 2008 Report Posted November 15, 2008 I'm with you Bree...I can't keep my hand off of the flywheel either. I think that's because I learned on an Adler 205 that went from 0-60 in about a 1/2" of pedal! LOL!! I hear ya! My Juki would take off like bat out of hell with the clutch motor. I would get blisters from flywheeling it. And then I have all these treadle machines and you have to flywheel those all the time too. My mom flywheeled her old Singer which she taught me to sew on. I have done it on every sewing machine that I have owned so I guess it's burned into me. Quote Ride Safe! Bree 2003 Dyna Wide Glide Memberships: Iron Butt Association, Niagara Falls HOG, Wild Fire HOG NRA, Niagara County Sportsman's Association
Hockeymender Posted November 14, 2016 Report Posted November 14, 2016 Goldstar GBSM-550S. I have four of these and have had them in service going on two years. They are easy to set up and work flawlessly. Plenty of power as well. http://store.allamericansewing.net/goldstar-gbsm-550-brushless-servo-motor-550-watt-34hp-with-needle-positioner Quote Regards, Joe Esposito www.hockeymenders.com instragram: @hockeymenders.com
Members Sonydaze Posted November 14, 2016 Members Report Posted November 14, 2016 I go with needle positioners. They make corners faster and easier. I set mine so they stop down and go up when you rock back on the foot pedal. I recently got a newer 750 watt servo, it has proven to have much better torque and slow speed control. After several years with servo motors, I don't know how I used to sew with a clutch motor... although I do remember a sore hand from stopping and turning the wheel. Quote http://www.bound2please.com Sewing machines: 3 - Sunstar 590BL, Artisan Toro 3200, Juki LK-1900HS, Juki DDL-8500-7, Juki DDL-5550N, Pfaff 138-6/21, Pfaff 546-H3, Pfaff 335-H3, Adler 221-76, Singer 144WVS33, Singer 29K-51, Siruba 747B
Members dikman Posted November 15, 2016 Members Report Posted November 15, 2016 My first servo came with a needle positioner, mainly 'cos it seemed like a good idea at the time! I set it up, tried it and didn't really like it. In fact, I found with a servo set up to sew slowly I don't need the positioner. Also, be aware that a needle positioner won't work if a speed reducer is fitted. Quote Machines wot I have - Singer 51W59; Singer 331K4; Seiko STH-8BLD; Pfaff 335; CB4500. Chinese shoe patcher; Singer 201K (old hand crank)
Hockeymender Posted November 15, 2016 Report Posted November 15, 2016 1 hour ago, dikman said: My first servo came with a needle positioner, mainly 'cos it seemed like a good idea at the time! I set it up, tried it and didn't really like it. In fact, I found with a servo set up to sew slowly I don't need the positioner. Also, be aware that a needle positioner won't work if a speed reducer is fitted. I have speed reducers on two of mine and they work just fine with the needle positioners. Quote Regards, Joe Esposito www.hockeymenders.com instragram: @hockeymenders.com
Members Gregspitz Posted November 15, 2016 Members Report Posted November 15, 2016 I have one on my Techsew 5580RF and it is wonderful..full control fast and slow and great torque and the needle positioner works great with the servo. I wouldn't do it any other way from now on. Quote Greg Spitz MD,FACS Custom Watch Straps 922Leather Gregspitz@922Leather.com
Members dikman Posted November 16, 2016 Members Report Posted November 16, 2016 I stand corrected then, Hockeymender. Mine goes into meltdown if I use a speed reducer . I have read of others having the same problem, but if yours works then it must depend on the servo brand? Quote Machines wot I have - Singer 51W59; Singer 331K4; Seiko STH-8BLD; Pfaff 335; CB4500. Chinese shoe patcher; Singer 201K (old hand crank)
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