Adding pulleys to slow down a Consew 206RB

[melinda]

I have watched a few videos on adding larger pulleys, shaft, pillow blocks to slow down the sewing speed. All are

fairly explanatory--except--it seems that either the machine to small pully, or clutch motor to large pulley will be out of 

alignment once installed. So-- is the clutch motor repositionable side to side to allow better line up of pulleys and belts?

None of the videos I have watched have addressed moving the motor itself.

Thank you

[Northmount]

4 hours ago, melinda said:

I have watched a few videos on adding larger pulleys, shaft, pillow blocks to slow down the sewing speed. All are

fairly explanatory--except--it seems that either the machine to small pully, or clutch motor to large pulley will be out of 

alignment once installed. So-- is the clutch motor repositionable side to side to allow better line up of pulleys and belts?

None of the videos I have watched have addressed moving the motor itself.

Thank you

First, I would get rid of the clutch motor and replace it with a servo motor.  You can find lots of info and comments on servo motors here on LW.

Many motors mounting brackets allow you to move the motor to one side or the other.  You probably will need to move it to the left.  If the bracket doesn't allow for sideways adjustment, then figure out how far the motor needs to move, plot positions for new mounting bolt holes in the table, drill new holes and move the motor and bracket to the new holes.

Note the new position (center-line) of the small pulley on your speed reducer that drives the machine pulley should be behind a perpendicular center-line of the machine pulley so you can tilt the machine head back like before the addition of the speed reducer.

[melinda]

Thanks!

I took another look at the motor mounting, and found it may allow some movement without drilling 

new holes--but to be sure must remove it first as it has a 3/8" heavy rubber(??vibration damper) mounting

that covers the bolt slots--at least the rubber has slots, but cannot see the actual metal mount. LOL--since it 

is 27 degrees outside and studio is not heated, my further investigation will wait until at least noon.

  I had considered a servo motor but thought they might not have enough torque, and this machine came with the clutch motor.

My husband will also check out the motor motor mounting with me.  now that he finally understands what I want

to do to slow it down. I have also read that even a speed control will not slow it down enough to be just  over hand turning

speed . It will take awhile, but I will post when it is done and I can do more than stitch fabrics. Thank you again.

[amuckart]

I second Northmount’s advice to ditch the clutch motor and replace it with a servo if you can possibly afford it. 

If you’re going to go to all the work you’ll get a much better experience from a servo than a speed reduced clutch motor. You’ll also be able to add a needle position sensor, which is a big quality of life improvement. 

They aren’t terribly expensive really are worth saving up for. I will never go back to use a clutch motor on any machine I own now. 

[dikman]

A servo will have more than enough torque to run your 206RB. If you're concerned about it get a 750w version and if you need even more torque fit a speed reducer too. I spent a lot of time messing around with a clutch motor, pulleys and speed reducers until I finally saw the light and swapped to a servo. Don't waste your time trying to tame a clutch motor, trust me, a servo is the only way to go if you want to sew leather.