Gregg From Keystone Sewing

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About Gregg From Keystone Sewing

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  • Birthday 03/29/1974

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  • Location
    Philadelphia, Pennsylvania, USA
  • Interests
    Leather Sewing Machines and related equipment

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  • Leatherwork Specialty
    Sewing Machines and some cutting equipment
  • Interested in learning about
    Leather work and machines
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  1. knee lift fitment

    On most industrial sewing machines the solenoid is actuated with a 24 volt DC signal. On some motors that have a control box there are features for input and output options that can widely vary. Typically, these motors are electronically controlled with the use of a digital input. Rule of thumb, chances are if you have to ask, no, your motor probably does not have a 24V DC output for presser foot lift. Or the machine would have it. Or it's broken. Just kidding here. If you made it this far, and the machine does in fact offer auto foot lift, most often they are going to have a pretty user friendly way to do it. One of the most common options for foot lift can run off of the foot treadle with a heel back on the motor control foot treadle, instead of a more common toe down, or forward. Many people prefer this setup. Also, input buttons can be mounted almost anywhere. In this case here you are asking about a switch mounted under the table top close to where a normal knee lifter presser pad would be. The electronic ones can be adjusted higher or lower and to a comfortable distance when operating the foot treadle. The nice thing about this is that you do not have to move the knee lifter very far, just enough to activate the short stroke of switch button. And you can get full presser foot clearance, or lift from the machine, by specifications, every time. Another nice way to do this setup is with an extra foot pedal for the foot lift. Again, using only a short stroke to activate the foot pedal. Some like it to the right or the left of the sewing machine's foot treadle. Hope this helps.
  2. ONLINE Pulley Calculator - Centers - RPM - Belt Length and Speed

    This is great, very practical to sewing machines, even even just as interesting to me is calculation for a third pulley such as a speed reducer.
  3. hand wheel - balancing wheel difference

    I've seen handwheel, balance wheel, and pulley all being used for the same thing. The only technical term that can be a variance is handwheel vs a balance wheel. The balance wheel has a counter weight or material cut away to prevent the machine from bouncing as it operates where a hand wheel does not. Other than that, I'm sure there are some more technical specific terms used out there for this stuff. In my world, if you can differentiate between the machine hand wheel and the motor drive pulley, we're good.
  4. Juki 1510-7

    That Efka looks old, maybe too old to service. What's the control box model number? You should make sure you can get this service and support for this motor before diving in. Could be 110V as well, for sure.
  5. Juki 1510-7

    I have limited information from this thread, but from what I read, the 1st thing I would be concerned about is a very very good Efka motor on a very good LU-1510-7 machine? Juki from the factory uses a proprietary motor, and control box like an SC-510. That said, it's 100% possible that someone hooked up an Efka motor and control box that can do needle positioning, presser foot lift, underbed trimmer, input buttons, anything the Juki can do the Efka can do. And in some cases the Efka may have more torque. Most Efkas are Single Phase 220V, the newer ones anyway.
  6. What to look for in a used fur machine?

    When you say fur, are you looking at a Bonis type machine?
  7. Most of the servo motors with control boxes fire off 24VDC signals for things like presser foot lift, back tack, among other things.
  8. New Sewing Machine

    That's a nice machine you got there, good luck.
  9. Efka DC1550AB321 (Only in 220V single phase) or Mitsubishi XLG-554-10Y. Solenoids for air are going to be required as well. This sewing machine setup is not for the faint of heart, and requires extensive setup to get this project up and running.
  10. Just picked up a Consew 206RB-2

    I know this machine well. Made in Japan, by Seiko Sewing Machine Co., Ltd. What's the serial Number? Also, for dust, use if you can compressed air, and then oil with stainless sewing oil.
  11. Youtube video of a sewing machine setup

    Concept Setup efka dc1550aB321 durkopp adler model 366 Hope you enjoy, maybe a little technical for some to follow for seven minutes, thanks so much for watching. A lot of work went into this for sure. 1080P Available within settings, clear video of control panel gauges buttons presser foot roller
  12. Singer 114W103 Chainstitch Embroidery Machine

    Quick story before I get to some work here. We had a customer from Guatemala who came in, asked for a rebuilt Singer 20U (Japanese made, one of the good ones). He was specific that the knee presser worked with the zig zag bight or width as stated, and that we setup the machine to very very fast for this model. I really didn't know if he was a serious customer or if he even knew what he was doing. I was busy and didn't feel like setting up a machine specific for someone who was not a serious buyer. Boy was I wrong. When he came in to test the machine setup as we had it, I was still very skeptical. Until he sat down and started sewing. He produced this beautiful two color embroidery by hand without even a hoop. Clearly in under one minute. I still show this to people, and use it as an example of how not to ever underestimate what someone can do. ***I was reading through, Singer 20U has an embroidery plate where you remove the feed dog and presser foot. Many of these Singer 20U models and aftermarket machine came with these as an accessory.
  13. Juki LU 563

    UWE did it again this video is fantastic.
  14. Adler 68

    Good looking machine, and it does appear to be a discontinued part number from Durkopp Adler.
  15. Sewing machine identification

    I believe that this is a Pfaff Eco 45. Russian made, Pfaff was NEVER able to obtain parts. EVER. Many of the parts are hand fitted. Oddball presser feet. Pfaff was embarrassed when they offered this machine for a short period of time and unable to provide ANY parts. The factory had a short run and closed. My father has one in his basement working. We can't sell a machine like this that we cannot in anyway support. Don't bother calling Pfaff for anything to do with this machine, you'll waste your time.