How to Slow Your Industrial Sewing Machine Even More with Smaller Pulley for your Servo Motor

[@dejapex1]

I did this modification. My motor shaft had no keyway so I had to drill and tap for a set screw. Also dropped down 2 inches on belt to a 3L 400 at NAPA. So far my speed and control are much improved. noticed your Everlast welder. I've had one for over 10 years. Had a gas solenoid go out after 8 years and their customer service was great. Thanks for taking the time to produce excellent videos!! Take care

[@link2on]

Before I switched to servo, using my consew was like trying to fill a glass of water with a fire hose. way too fast and throttle pedal was way too sensitive.. servo fixed all my problems and has given me more confidence and control.

[@AlexanderDyer]

I love that analogy.

[@rahalati]

I like your analogy

[@dannyl2598]

Thanks for the tip. I bought a servo motor through your link and I love it. It never occurred to me to enhance the control even more this way. I also ended up getting the edge guide and a two magnetic LED lights. I use one of them every day working on electronic equipment that is mounted in racks, and always in a cramped dark tell-com room. Thanks

[@everettea6793]

THANK YOU BRO! It took me less than 5 minutes and I now have a usable machine! If you are ever in Iowa...

[@duane3070]

Great video. I just checked my parts box of pulleys and found a little one that fits perfectly. What an improvement....for free!My drive belt is just a car vacuum hose, taped together with duct tape, so I just cut off a little bit to fit.

[@AlexanderDyer]

Free is good and that vacuum tubing thing is a great hack.

[@rodm7850]

THANK YOU Alexander. On your recommendation, I clicked the link, purchased the servo motor and the 45mm pulley. On my Consew 206RB-1 it is a night and day difference. 1. It is totally silent when your foot is off the pedal. 2. Switching to the smaller pulley took less than 5 min. 3. I can now slow it down to about 1 stitch every 5 seconds if I want....now THAT is control. OR...I can speed it up on a straightaway. One thing I did need to do was to move to a smaller belt size. I used a general utility V-Belt from a hardware store...went from a size 42 to a size 39 (that was my fault...I did not buy the 38 like suggested). Made the tension adjustment underneath and I was home free.

[@everettea6793]

Hey Rod, I have a 206RB-5 would I need size 38?

[@cosergroup]

Thanks brother! Just installed a 40mm pulley on my servo.

[@randal1470]

I have a 31k15 on a treadle, it does slow so nice it’s an addiction. Learn alot from your vids man. Thanks!

[@AlexanderDyer]

Peace

[@stoneblue1795]

Well done. I have that same motor, more or less, this will be fun to try. Thanks Alex!

[@AlexanderDyer]

Absolutely, It makes for more accurate thread injection, right?😉👍

[@ThePracticalMechanic]

Thanks for the video. I just purchased a consew servo motor for my Pfaff 145 and it wasn't as slow as I expected. I just ordered a 45mm pulley but wasn't sure if it was correct since I have yet to disassemble the servo motor. After watching this it looks like it will fit.

[@alexlysen896]

Great video as usual,answers many questions,at least for me.Good alternative to bulky speed reducer.SIMPLE and ELEGANT!😁💥. Thank You for your effort to share your knowledge and advice! RESPECT!✊😎

[@AlexanderDyer]

😎👍

[@oedipism386]

Many thanks for the in depth explanation! 4k stitches per minute is too much for the cotton thread I like to use :D

[@michaelcooksmd]

Worked like a charm - Thanks!!

[@oh8wingman]

Another inexpensive method of gaining better control of your servo motor is to lengthen the arm that is tied to your treadle. I purchased a short length of 1" x 1" x 1/8" aluminium angle iron from Home Depot and lengthened the motor arm on my machine so the hole centre where the ball joint ties in is now 10" away from the motor control pivot from the 5" it normally is. As a result, it doubles the amount of travel on my actuator treadle uses for a given speed giving me far better and more accurate control. Without changing the sheave I can readily start my machine at a very slow pace. I will however be purchasing the smaller sheave now that I know where to get one to gain even greater control.

[@AlexanderDyer]

I see what you mean. Thanks for sharing.

[@HumanFellaPerson]

Thanks for the links! I was confused by the same listing before watching this because it said it was for the clutch motor.

[@AlexanderDyer]

No problem 👍

[@ninjabeatz905]

Thank you

[@mikemousseau2106]

How about a comparison video between this Adler and the Juki LU-1508.

[@ChihaoNguyen]

Great video!

[@wwclt]

Good looking out, just what I needed

[@danzar1729]

Hi. Great videos thanks. Please make a video of this sewing machine that you are sewing with.

[@AlexanderDyer]

Thanks, I will.

[@kenwallace8035]

Looks like you scored a nice 867 NICE!

[@AlexanderDyer]

It is my new favorite.

[@swordfish1120]

I just installed a 45mm pulley on my servo motor and before my slowest speed was 500 rpm and with the smaller pulley it went down to 200rpm. To get a better idea of what that means I set my overall speed at 2500rpm and the slowest speed I could get just barely pressing the pedal before I get 5 stitches per second and 2 stitches per second after the install. Not bad.

[@Rowingpeople]

Oh classic mechanics D, transform speed into moment of force!)))) In my machine servo integrated into a head, if i need slow down speed i usually using engineers command on control block, it can reduce speed too 100 stitch/min. Whatever great advice! Thanks:)

[@hxhdfjifzirstc894]

Yes, when you switch to a smaller pulley, you will get more torque from the motor. And if you switch to a larger pulley, you will get less torque. I don't know if more torque is good for sewing, but I'm pretty sure it's not bad.

[@jjs4x]

Hats a great tip! Is the torque affected by the smaller pulley, like to get through a couple layers of canvas or denim? Another great video, thank you for sharing! Jason

[@AlexanderDyer]

It only improves the torque. Slower and stronger.

[@johnnyslagboom3094]

great tip , this is what I need.

[@RhinoAg]

I’m assuming this requires a new belt?

[@carlosvejar3938]

Great video, I followed your advice. thank you

[@AlexanderDyer]

Great to hear!

[@carlosvejar3938]

@@AlexanderDyer the control and torque are phenomenal and I found it very easy to install. And it's cheaper than a speed reducer even getting a brushless servo. Thank you for your advice

[@carlosvejar3938]

Question I hope you can answer, do you know of a industrial machine that is a flatbed with a roller foot

[@labodaleatherlabodaleather5734]

Such great videos. Thank you. I love the turtle clip art on the intro picture and your Seiko turtle. Nice watch. Thanks for the inspiration.

[@AlexanderDyer]

⌚ Nice observation. You know your watches.🙏

[@bestbuilt8473]

Hey will that gear change add more torque and did you have to change the belt size

[@AlexanderDyer]

Yes and No

[@bestbuilt8473]

Alexander Dyer Thanks for getting back and can you explain

[@bestbuilt8473]

Alexander Dyer Alex I did read some older post and it was enough to answer my questions thanks again

[@gregthompson8062]

I already got a speed reducer on my 1541s and works great. Would adding this gear to my servo be of benefit for the extra control? Seems like the speed reducer business would be less if these little pieces added of similar benefits of the reducer without the cost.

[@AlexanderDyer]

The small pulley alone would not slow your machine as much as a speed reducer will.

[@adamcain4603]

Do you find that you lose torque using a smaller pulley if your doing leathers?

[@AlexanderDyer]

Actually, the smaller pulley increases torque.

[@austinwinston684]

Do you once in a while go full speed without thread just to make sure the oil is pumping or wicking where it needs to?

[@AlexanderDyer]

With a wicking system like on this machine that is not helpful since there is no centrifugal pump. Wicking occurs 24/7 regardless of speed. If you have a machine with a pump in a sump that is not a bad idea but the slow speeds are very easy on wear points in terms of pressure and heat and so no need to go over board with it. Those machines are designed to run thousands of rotations per minute so you may ask your self how long would you sew to reach a thousand rotations.

[@embeaston]

Would this weaken the motor’s ability to see through dense material?

[@AlexanderDyer]

Actually it increases the torque, similar to down shifting a vehicle. It goes slower but it has more power.

[@embeaston]

Alexander Dyer cool thanks for the reply. Why are most speed reducers large? Is that for added weight to the system? Thanks for the vids always enjoy learning from you.

[@AlexanderDyer]

I'm not sure about that. My guess is that is just the easiest quickest way to manufacture them.▶◀

[@randal1470]

embeaston one of the gears in a speed reducer has to be quite large, and because the engineers also have to account for the increase in torque and use a minimum shaft size, there is a practical limit to how small and compact the reducing gears can be. This is a case where the old school pully swap to a smaller diameter is actually a more cost effective, and efficient, way to reduce the speed on a machine. And gain some grunt too. The gear reduction set though can get you into lower gear ranges if it’s really needed. Sorry to butt in but I did gears alot in another life 😄

[@opaleshwarcherupalli6284]

Hello Alexander you are videos are very Informatics ,thank you and I want to know how to step down the speed of Servo Motor, and we can use a fan regulater, to control the power in put. Thank you

[@AlexanderDyer]

I prefer the Servo Motor for slow sewing. They are affordable and easy to switch. kzbin.info/www/bejne/opLZnKmpipqfqs0 I have never placed a clutch motor on a power potentiometer so I can not help in that regard.

[@franky9354]

Thanks for the video especially the link to the part! What was the difference in size of the new belt vs the stock one?

[@AlexanderDyer]

I was able to use the same belt by using the motor adjustment. When I need a belt I go to the auto parts store with my measurement.

[@micasaesloca]

just bought a servo motor and installed i think i digitaly set it to a low speed but ill get a 45mm pully to make even slowrr. i have the ddl 8700.

[@AlexanderDyer]

Cool, let me know how you like it.

[@opaleshwarcherupalli6284]

Sorry clutch motor, for Juki DDL8700, Thanks

[@lluwd]

thats a good alternative to the cost of a reducer. 200 bucks or 20 bucks right?

[@AlexanderDyer]

It is a good alternative yes and for me it is enough but a speed reducer will reduce the speed even more and can be combined with the smaller pulley. The pulley I have linked to is less than $10 so worth a try right?

[@johnfranks]

This also doubles the torque... Same as going from 1:1 to 2:1 gear ratios.

[@AlexanderDyer]

It is a win/win.

[@TheRushOfItAll]

I've got the Family FESM 550C servo motor (with a 50mm pulley on it) and it's got the speed dial like yours. My speed is all or nothing at each speed. I.e., at 690 it only does 690, at 1500 it only does 1500, etc. I can't "feather" the pedal to stitch slowly and gas it to hit the max at that setting. I hope that makes sense. After watching this, is it safe to say it's not supposed to function that way? Any idea what I need to do to get that functionality?

[@annemariealexa9195]

I want to switch from a clutch to servo motor with a needle synchronizer for my Nakajima 180L. I sew slipcovers and handbags and want to slow down my machine. I currently have a towel stuffed under the foot to gain more control. Can you suggest a needle synchronizer that would work with this servo motor and the smaller pulley please. Thank you for the video.

[@AlexanderDyer]

This simple version of servo I show does not have a positioner option. Try this instead. amzn.to/3ruza56

[@annemariealexa9195]

I elected not to go with the needle positioner so purchased the consew servo motor recommended in one of your videos along with the 45mm pulley. I put the motor together and my husband helped with the installation yesterday. I picked up a shorter belt from auto parts store and it runs great. I’m so happy I made the change. My machine can now creep slowly for more precision and still roar through a heavy slipcover job.Thanks for your video and assistance.

[@blindmify]

Is it easy to install this servo motor? I have a Consew 206rb-3 I just ordered the servo in the description then I realized I didn't actually know how to rig it up. It might be obvious but .. anyway, a tutorial on how to install ìt would help.

[@rahalati]

Thanks. I need the 220 volt version of the servo motor if you can help me please

[@AlexanderDyer]

I have never used this brand or a 220v servo so buyer beware but I have used some that looked like this with success so maybe you might try it. Good luck. amzn.to/33N3ihc

[@felipediazcristianismo]

The pulley works on any servo motor, for example, a servo motor for a juki 1541? And the pulley requires a new belt? THanks!

[@AlexanderDyer]

It works on most but I don't know about yours. There is an adjustment for belt tightness at the motor. perhaps an adjustment will allow you to use your old belt otherwise the auto parts store will have a shorter belt. Take your old one to compare.

[@wilkbor]

Thanks for the video. I suspect that the smaller pulley means less surface area for the belt. Has the belt ever slipped when it's under a heavy load?

[@AlexanderDyer]

No, never.

[@derekharbertson6282]

Hi Alexander. Thanks for the video. I switched my 75 mm pulley to this 45mm pulley. My machine came with a M-54 size belt. Can you assist me with what size belt I should drop down to?

[@AlexanderDyer]

I go to the auto parts store to get any length belt I need.

[@l.denisehunter9748]

Will this work for a TechSew2750? I was considering buying the speed reducer.

[@AlexanderDyer]

It will sure be a lot easier to install and cheaper too but if you do not mind the cost and complexity of install then the speed reducer will slow the machine the most. Have you already installed and Servo motor?

[@WeQuiltStudio]

What Foot control should I buy with this motor?

[@AlexanderDyer]

See if you can find what you need on universalsewing.com

[@tdodo3026]

Thanks for the video. I changed my pulley as you suggested but I still can’t slow machine down like yours. I have new tech servo motor. Do you think I have to get the enduro motor in order to slow it down as you demonstrate? I hope you will get back to me and help me with this. Thanks

[@AlexanderDyer]

Here is the motor I use. I have several. amzn.to/2zG4oA5

[@lizzyzinn2290]

I ordered this part. Unfortunately i cant work for my Highlead 618 servo motor. When you remove the servo pulley you need some kind of threading to attach it. No thread on this part. Also you have to replace the belt to fit the new pulley. Its just to simple-ill be getting the reducer after all...

[@AlexanderDyer]

Hmmm, not sure what motor you have but you might look closely at the video again and see how your shaft may or may not differ. Belts are easy to get from the auto parts store. Please be aware that the reducer will require 2 belts to complete the install.

[@micasaesloca]

did you need a different belt too?

[@AlexanderDyer]

Sometimes. I go to my local auto parts store.

[@mikemousseau2106]

Was there enough adjustment for proper belt tension with the smaller diameter pulley? Or did you need to use a shorter belt?

[@AlexanderDyer]

In my case yes but your mileage may vary.

[@jessebova4085]

What sewing machine is that?

[@AlexanderDyer]

Durkopp Adler 867

[@jessebova4085]

Ty, videos are great and especially enjoy the videos on making bags and the tool roll

[@britainreynolds7365]

What size band did you go to with this smaller Pulley? Mine isn't tight enough and I can't lower the motor any further to tighten it (consew 206rb5 stock band is what I use right now)

[@AlexanderDyer]

These belts come in all sizes. I can't know what size you need but it will be smaller than the one you currently have. Go to your local auto parts store for the correct size. Take in your old belt and estimate how much shorter the new one should be. Cheap and easy.

[@ricardofranco9946]

And twice the torque

[@johngalen1602]

👌👍

[@micasaesloca]

i have a juki 8700 how can i slow it down.

[@AlexanderDyer]

Servo Motor. Here is the one I use. amzn.to/30QYvv1 Also you can watch this to learn more. kzbin.info/www/bejne/opLZnKmpipqfqs0

[@mmaneri]

how would a smaller pulley work with a needle positioner? I'm confused by the functionality of a needle position does it regulate the speed of the machine based on the actual revolutions to the speed you set or does it just simply make sure the needle is left up or down when you remove your foot? I have a consew 3001 and I wanted to slow it more with a smaller pulley

[@AlexanderDyer]

It will work. The positioner operates by counting rotations at the handwheel so when you go to a smaller pulley the counting at the handwheel will simply occur at the slower rate.

[@br31woodlands69]

Can’t get my eye off that open blade 😬

[@AlexanderDyer]

You would hate my band saw. 😆

[@pmelchman]

slows it down but no torque

[@AlexanderDyer]

That is not true. If you have rode a bike with multiple speeds you know that when you go to slower gears it gets easier to pedal. If you then think from the perspective of the motor, the slower pulley makes it easier for the motor and so in effect you increase it's effective strength or torque at the needle. Of course not to the degree you can attain from a speed reducer but at a significantly lower cost and level of complexity to install. On these flatbed machines I have never felt like I did not have enough torque even before installing a smaller pulley.

[@troyparr1659]

It seems odd to hear an American speak of millimetres, instead of fractions of an inch :-)

[@AlexanderDyer]

What is really odd is that I have to have two of everything, one in metric and one in US customary.🤔

[@redranger7731]

will this work with 8700 Juki industrial sewing machine?

[@AlexanderDyer]

Yes.

[@carmenbaca8657]

Yes work juki 562?