new and high qualityEasy to install, can effectively remove the residual filaments from the nozzle.The limitation of the machine stroke by modifying the slices software script.1. Name: For 2.4 Silicone Nozzle Brush Kit2. Tested models: 2.4 250, 2.4 300, 2.4 3503. Print link: https://.thingiverse.com/thing:6724416 Special suggestion: Use high temperature consumables to print ABS, PA-, etc.)4. Operation method: Modify the slicing software script to drive the machine to brush the cleaning brush before printing. Take voron2.4 300 as an example (please adjust the parameters by yourself when using other models) Add the following code before the slicing start script:G1 Z10 Y300 X45 F2000 ; Go downG1 Z1 F2000 ; go downG1 X115 F9000G1 X65 F9000G1 X115 F9000G1 X65 F9000G1 X115 F9000G1 X45 F9000G1 Y280 F9000 ; go to frontG1 Z0.2 F3000 ; get ready to primeG92 E0 ; reset extrusion distanceG1 X95 E30 F600 ; draw G92 E0 ; reset extrusion distanceG1 X105 F5000 ; quick wipeG92 E0G1 E-1.5000 F2400G1 Z50Colour:GrayMaterial:SiliconePackage Contents:1 x Nozzle Silicone Brush1set x accessoriesOnly 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.