Summary An Adjustable Brushed Wiper for use with the BigBox, perfect for printing with E3Ds Hardened Steel Nozzles. Ideal when printing with abrasive filaments such a Carbon Fibre. Compatible with all versions of the BigBox. You will need 2 x Small Brass Brushes with the handles cut off. 2 x M3 6mm Grub Screws to hold the brushes. 3 x M3 8mm Socket Cap Screws to clamp the rubber strips. Do not use with non-hardened nozzles or socks! Print Settings Printer: BigBox Pro / Dual Rafts: Doesn't Matter Supports: Yes Resolution: 0.25mm Infill: 15% Notes: Requires some support in the channel for the brushes. STLs orientated and faces chamfered for best printings.