(Spool D max 50mm) Мetal rods are taken from the DVD drive. A wire guide is a paper clip. Links to used components: Thread Shaft Rod - http://ali.pub/2z2gxb Thread Shaft Rod brass - http://ali.pub/2z2gvr UV Glue Light repair Pen - http://ali.pub/2z2hbi Butterfly nut - http://ali.pub/2z2hef Flange Ball Bearings - FZ604ZZ - http://ali.pub/2z2ho5 Buy & save with CashBack - http://ali.pub/2v0znm Donate with PayPal ---> https://www.paypal.me/perinski Instagram ---> https://www.instagram.com/v.perinski/ Twitter ---> https://twitter.com/v_perinski Pinterest ---> https://www.pinterest.com/v_perinski/ Tingiverse ---> https://www.thingiverse.com/thing:2110500 Facebook ---> https://www.facebook.com/3DPrinting.stl/