Capricorn XS is a PTFE Bowden tube for 3D printers, sold as the brand's flagship tubing with a proprietary additive blend. It comes in two sizes: 1.9 mm inner / 4 mm outer for 1.75 mm filament and 3.2 mm inner / 6.35 mm outer for 2.85 mm filament. The tight, round bore is the selling point: it keeps flexible filaments from binding and gives more precise retraction than generic tubing. It suits anyone upgrading a Bowden setup, especially those printing TPU or PETG. Against cheaper clear PTFE tube, it costs more but holds its bore and resists wear longer.
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Owners of Bowden printers rate Capricorn XS highly, mainly for its tight, round bore. Flexible filament and retraction-heavy prints come out cleaner than with stock tubing. The main complaint is the higher cost than generic PTFE.
Capricorn XS Tubing is PTFE Bowden tubing for 3D printers. It is made from pure virgin PTFE with a blend of additives that includes a high-lubricity additive and blue coloring. The tubing is dark blue and is not see-through.
It comes in two diameters. The 1.9 mm inner, 4 mm outer diameter tubing is for 1.75 mm filaments. The 3.2 mm inner, 6.35 mm outer diameter tubing is for 2.85 mm filaments. It also suits chunky filaments.
The tubing is sold in 1-meter increments and is cut to match the total quantity ordered. Each order includes a Capricorn sticker. For Modix large-format printers, the suggested lengths are 2 meters for the Big-40 and Big-60, and 3 meters for the Big-120X, Big-120Z, Big-180X and Big-Meter. Machines with 2 print heads need twice the suggested amount.
