Thanks to this product, the Pro3 is able to measure its own frequency and adjust the parameters autonomously. The sturdy construction and stable design of the machine allow it to maintain its frequency for months without any action being necessary. It is recommended to complete the calibration process every 2-3 months. The operation can also be performed manually. Please note that in order to function properly, the Hyper Speed ??Hotend, Hyper Speed ??Auto Sizer and Hyper Speed ??Series filaments must be installed on a Pro3 Series enabled in Hyper Speed ??mode. An update of your machine is therefore necessary and this is only included in the complete Hyper Speed ??Upgrade kit. The absence of any of these items could cause your print to fail.