WHAT IS TAP?: Tap is a nozzle-based z-probe for the V2 and Trident printer . The entire toolhead moves to trigger an optical switch.EXTREME PRECISION: A constructed Tap, when in service on a -constructed printer, will be to measure your Z position reliably with a precision of 0.4 m (0.0004 mm). This precision will help you better use and maintain your printer.ANY SURFACE, CHANGE ATWILL: Tap can measure any securely mounted surface. Print on Glass, Garolite, Alumina, Moon dust...it no matters. Textured plates are perfect for Tap, adhesive PEI sheets may also be used. Tap is unaffected by beds with magnetic fluctuations (note: magnets may affect the surface Tap is sensing, such as pulling the plate tighter over the magnet). Tap is setup, you should not need to recalibrate after changing nozzles or plates.VORON DURABILITY, HIGH TEMPERATURE OPERATIONS: Tap uses light to detect movement and will never wear out. The sensor in Tap is rated to operate at 70C to 100C and will not degrade over time the way a contact switch or inductive probe can. Even if you brought your temperature to 100C, it will accurately and reliably record your printer melting (assuming you in ABS).We tested dozens of printers and thousands of print hours. Hundreds of PIF quality kits were using Tap. Some test printers had over 1,000,000 probe cycles to test durability.NO COMPLICATED MACROS: For probing temperatures, Tap uses a single 'activate_gcode' macro in the [probe] config. Tap is always to probe and requires no docking or undocking moves.Z ENDSTOP ELIMINATION: There is no need for a separate Z endstop. the offset is configured, it will hold without appreciable drift. It is normal to need slightly different offsets when switching between filament types. Item Type:Hardware Parts/Machine Partscolor:Photo colorMaterial:plasticPackage Contents:1 set x 3D Printer PartsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.