Mods for BNBSX extruder

thingiverse

Here are a few mods for the BNB SX extruder. 1) Revised lower clamp with cable support - This is designed to prevent binding when the extruder is on the right-hand side. The normal Bear/BNBSX extruder has its cable support connected beneath the bearing, which causes problems when the extruder is on the far right. The new lower clamp includes a full cable support that distributes stress from the cable loom across the extruder, especially in the middle between the bearings. It's also easier to remove, although it does require cutting zip ties. Print front down and add some support from the bed when printing. 2) A revised fan shroud works exactly like the default E3D V6 fan shroud in the BNBSX extruder but has had side ducts spread slightly for 1-2 mm clearance from the V6 sock/heatblock. 3) Revised clamps have a full channel for the sensor cable. When printing at full height, the cable must be completely within the clamps to avoid tangling with the MMU/spool holder leg. 4) Buff washer - These are for the extruder motor and can be used instead of metal washers. Print your washers in the same material as your extruder for a bit of extra bling. 5) Rivnut coupler replaces Festo connectors, providing a long-lasting connection that doesn't wear out over time or chew up PTFE tubes.