(2) ABS (Left and Right) Makerbot Replicator 2X Dual Extruder Upgrade - Delrin Plunger Replacement: We had serious problems using the delrin plunger system so we purchased a spring loaded extruder upgrade but still had a few problems with not having enough pressure from the spring to keep the plastic against the drive gear (slippage). This is a redesigned upgrade which uses a heavier and stiffer spring then what is normally used.
This is a unused Goulds Xylem Aquaboost Duplex pump controller. It has two ABB ACS550-U1-08A8-4 +P18 5 HP variable frequency drives and a disconnect swtich. This can be used as a pump controller or the VFDs can be used as regular motor controllers.
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