Hot end replacing: https://drive.google.com/open?id=16lLntfp-3V-j48pP_-aeRtADg49mSnek
Tightening the steel strip: https://drive.google.com/open?id=10bpCBjuJk-1pElTXTNHAKDnMDaIsbZh3
Exporting the log file: https://drive.google.com/open?id=189CIUW4D4o_Qm2mY2j63N3rKzn7n3zZp
Turn off fast calibration: https://drive.google.com/open?id=19eaOXdrmvuVefADBKRHnrSjPI-p5S5IV