There have been several forum postings in the past relating to your project. Search for them. My commercial wire measurer and cutter has one driven wheel that is knurled and has a second rubber wheel that presses the wire against the knurled wheel.
The knurled wheel is driven by a stepper motor and it is controlled by a micro-controller that measures the wire. The length is input on a key pad.
The wire cutting is done by a solenoid driven blade. The wire never stops moving. The cutter solenoid is overdriven by a charged capacitor so it moves quickly and powerfully.
Paul