if i upgrade my k40 do i keep the same steppers.

Lasers
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1

if i upgrade my k40 do i keep the same steppers. or do i change to something else? thanks

2

and does anyone knmow where i can get the motor that comes with k40? i need one now. …thanks

3

Stepper seems fine, no reason to change

4

I need new steppers for my k40. Where can I buy?