Polargraph modification print parts(Bobbin specification)

Change pulleys on the bobbin, was modified to use the fishing line system.
To be used by hooking on the whiteboard.

■Parts List
・Whiteboard-W910×H610
・Arduino(Uno) x1
・Adafruit Motor Shield for Arduino v2 x1
・NEMA14 x2
・5V/12V-DC_Power源 x1（For stepping motor）
・2.1mmDC-Connecter(MJ-077N) x1
・Micro servo(SG-90) x1
・Bearing(6805ZZ) x2
・Bearing(624VV) x2
・Hex-socket head cap(M2x8mm) x4
・Hex-socket head cap(M3x6mm) x8
・Hex-socket head cap(M4x15mm) x3
・Washer(M4) x2
・Nut(M2) x4
・Nut(M4) x1
・LockNut(M4) x2
・Fishing line(0.5mm/4m)

■Printed Parts
・motor_mount x2
・edge_pully x2
・bobbin x2
・bearing_arm x2
・Gondola x1
・MountBoard(arduino) x1

The use as a base system, Polargraph: http://polargraph.co.uk