Servo motor speed limiter

[brmax]

You might find some threaded inserts for wood helpful. These types offered in the link are factory installed on my Cobra table, mounting the same part. 

  https://www.ezlok.com/inserts-for-wood?url=inserts-for-wood&info_id=40

good day

Floyd

[JeffHami]

I want to thank everyone for all their help and let you know the upgrade went great. I had to move the motor back and over to get it to work the way I wanted. I used 3 carriage bolts to hold the motor and I mounted the speed reducing pulley with the three large wood screws it came with. I bought my belts from Grainger Supply, they have just about every size belt you could want. 

[catskin]

Here is one thing nobody else has mentioned.  This is on a clutch motor BUT it would be equally true on any motor.  I just replaced a 2 1/2 inch pulley with one 1 1/2 ( No one mentioned 1 1/2 ) and it makes a big difference.   I just happened to have one hanging in my shop that had the right size bore.  SO if you could find one smaller than the one on your motor it would bring top speed down even more.  ( the one on your machine looks rather big )  The one I used was just a cheap aluminum one but it will work just fine for what I do.  Naturally the smallest pulley you can put on will depend on the shaft size but it sure looks like you can go much smaller than what is on there now.

[mikesc]

Here is one thing nobody else has mentioned. This is on a clutch motor BUT it would be equally true on any motor. I just replaced a 2 1/2 inch pulley with one 1 1/2 ( No one mentioned 1 1/2 ) and it makes a big difference. I just happened to have one hanging in my shop that had the right size bore. SO if you could find one smaller than the one on your motor it would bring top speed down even more. ( the one on your machine looks rather big ) The one I used was just a cheap aluminum one but it will work just fine for what I do. Naturally the smallest pulley you can put on will depend on the shaft size but it sure looks like you can go much smaller than what is on there now.

Actually the use of smaller pulleys with various types of motors has been mentioned many times here over the years, perhaps no-one mentioned it in this thread because they thought people might "search" before saying "nobody else has mentioned" ?

Edited January 15, 2018 by mikesc

[dikman]

On 1/2/2018 at 0:12 PM, Wizcrafts said:

Alternately, if the motor pulley is over 2", see about replacing it with one that is under 2" diameter. If the original pulley is 4", a 2" pulley will cut the speed in half and double the torque. A shorter v-belt will be needed for a smaller pulley.

I would have been surprised if it hadn't been mentioned, it's generally one of the first things suggested.

[catskin]

My comment was meant to draw attention to the fact that pulleys as  SMALL as  1 1/2 inches are out there and will work on motors with thin enough shafts. And that 1/2 inch DOES make a very noticeable difference.