Jack shaft size

[Frodo]

Servo set at 350

I want to go very slow around corners and such as that

30 per minute or less

[kgg]

29 minutes ago, Frodo said:

Servo set at 350

I want to go very slow around corners and such as that

30 per minute or less

The constants you have as I understand them:

1. the size of the motor pulley for set 1 pulley is 2"

2. the size of the handwheel for set 2 pulleys and you want to use a 5" large pulley

3. the speed of the motor max to be 350

4. the rpm of the set 2 pulley to be 30 when sewing around corners

What I would suggest according to the calculator to get 30 rpm is

1. set 1 small pulley 2" (motor pulley) with a 5" large pulley and set 2 would be a 1.5 small pulley alongside the 5" on the same shaft giving the handwheel a speed of 30 rpm with 150 rpm on the motor

When you increase your motor speed up to 350 rpm (max setting) by fully depressing the foot pedal the handwheel rpm would be 70. The pulley alongside the 5" pulley has to be smaller then the handwheel pulley.

kgg