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[Saltair Boating]

I have the knob on the motor. I already changed the pulley to a smaller one, I think it's a 2". Will a digital controller allow me to slow it down even more? I'd like it to be real slow with a full press of the pedal. Thanks again

[fibersport]

How about a picture or model number of the motor? There's many different motors and many different knobs. If it's a clutch motor there's not much you can do other than slip the clutch. If it's an analog servo motor, using a smaller pulley is one way of slowing it down, another would be to install a speed reducer. There are a couple of types, the box speed reducer is easiest to install. If you have a digital servo motor, again, smaller pulley and speed reducer. Show us what you have -

[Saltair Boating]

So sorry newer Consew 1206RB servo motor. It has a knob on the motor starting at 350rpm with clicks 660, 970 ext.. Sorry I don't have any pictures yet.
Doing some research this morning this servo motor looks to do what I'm looking for. An now looking at needle position sensors also..LOL

[fibersport]

Look up a Consew CSM550 servo motor, if that is what you have, going to the 45mm pulleywill help a lot. For individual stitch control, what you posted would work. There are other brands, some very inexpensive and others higher priced.

[fibersport]

That video is showing the Kinedyne 750SL I think, I just ordered the next one up which is the SH from Neels Saddlery. I have the Consew 550 analog model, just tried a generic chinese version and was not happy with it and will be returning it. I talked to Ryan at Neels (great guy) and watched numerous videos of the Kinedyne and feel that it's probably the best and slowest servo motor out there. It's due in tomorrow so I can't report till I get it, if you can hold out I'll post my findings.

[Adam12]

The servo's with a knob have brushes. You'd need a brushless servo in order to add needle positioning. I'd second fibersport's suggestion of looking at speed reducers. Pretty easy add on to your setup and slows it down a bunch.

[fibersport]

I think the original poster is thinking a digital controller can be added to what sounds like an analog motor. Looks like he's a new member and maybe new to sewing?

[MalcolmM]

https://sewprousa.com/sewpro-sp-1100-npfl/ I bought this motor with a needle positioner a few years ago and it's been great, plenty of power and it "step stitches" no need for a speed reducer. Runs very slowly too.

[fibersport]

I just finished installing my new Kinedyne servo motor, oh my gosh! It goes down to 50 rpm, has a gentle ramp up that is adjustable, will punch through 6 layers of vinyl without hesitation. Honestly it's the motor I have wanted and so do others. It will do stitch by stitch. It came with a 45mm pulley and with the slow speed does not need a speed reducer at all. Spens some time here https://www.cowboysew.com/heavy-duty-se ... -motor.htm and also watch the gentle woodworker on youtube. He installs one and is sold! I get nothing by posting this but it's one heck of a motor. Look at the HM750SL, HM750SH or the HM1000SH as they all go down to 50 rpm.

[BigRig]

@fibersport, thanks for the feedback on the motor.