Automated String Cord Cutter

https://youtu.be/yVl75aUS3DY
https://youtu.be/ds7_uTPfOBs

Automatic string cutter. This cutter measures and cuts small sting or cord to specified lengths. it uses a pair of o-rings to drive the string off a spool and send it to the guillotine. the guillotine has a stack of quarters to provide the cutting force. In future versions i will try to reduce the additional required parts and hardware.


Prints -

Print 1 of everything .3 resolution is ok
print 2x spool holder pieces if using.



Other required parts

-2 nema 17 motors
- 2 or 3 axis arduino control board
- 12v power supply for stepper board
- 1/8" nail or steel pin
- 2x 1/8 x .5 od orings
- 1/4 od spring or smaller
- 1 m3x25 bolt
- 1 m3x14 bolt
- 10x m3x8 bolts countersunk
- 2x m3 set screws
- 2x 3x8 bearings
- 1 to 10 quarters
- razor blade

spool holder uses 3x 3/8 x 16 all thread





Minimum Arduino code

\#include
\#include "BasicStepperDriver.h"

BasicStepperDriver stepper_feed(