Makerbot Replicator Dual Extruder Upgrade Kit (Bearing Replacement) [T08DX]

Description

This is an upgrade kit for the Delrin Plunger. It can be used for many RepRap based 3D printers with dual extrusion setup including Makerbot Replicator 1 Dual, CTC, Duplicator, etc. (not compatible with Rep. 2X) If you are experiencing print failures every time you use a new filament, that is because of the existing plunger on your extruder that cannot adapt to the diameter tolerance of the cheaper filaments. I have had issues even with some of the Makerbot filaments, but this upgrade will solve this issue. You are buying a Makerbot Delrin Plunger replacement kit/Extruder Upgrade kit as shown in the first image. This is a picture of the actual item you will get (it does not include the stepper motor/drive gear). This kit includes everything needed to replace the delrin plungers on your Makerbot Replicator 1 Dual with a spring-loaded ball bearing assembly. This product is assembled and is a revised version of what Makerbot introduce in several aspects: Manual cast, Poly urethane (PU) (not printed, not injection molded). It has a higher resistance to heat compared to PLA or ABS (up to 120 degrees C). Each unit has been tested separately. One-piece arm with a stainless steel ball bearing and shaft. Two pice base with spacer (this improves the separation of the hot end and cold end which results in a less frequent extruder jams). A Nylon bushing has been replaced with the 3d printed plastic pivot in the existing products for a maximum durability. Specification: Base; PU, 80 shore D. Arm; PU, 80 shore D (Extreem rigidity). This kit includes: 2 x Back Plates (mirror) 2 x Swing Arm (mirror) 2 x 20mm socket hex screw - for the pivot joint of the swing arm 2 x 22mm flat-top hex screw - to mount the ball bearing inside the swing arm 2 x 12mm nylon bushing - for the pivot joint of the swing arm 2 x 10mm flat-top hex screw - to mount the back plate to your stepper motor 4 x 50mm socke