import math
import numpy as np

R = 10

def lower_pen(f):
    f.write('G1 Z-2.0\n')

def raise_pen(f):
    f.write('G1 Z0.0\n')

def move(f, x, y):
    f.write('G1 X{:.2f} Y{:.2f}\n'.format(x, y))

f = open('simple_test.gcode', 'w')

move(f, 1, 0)

lower_pen(f)

for i in np.arange(0, 2 * math.pi, (2 * math.pi) / 50):
    x = math.cos(i)
    y = math.sin(i)
    print('angle: {}; x: {}; y: {}'.format(i, x, y))
    move(f, x, y)

raise_pen(f)

f.close()