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13 Appendix 8. Visco Tool Bio Manual
13.1 Print Head Overview
The principle of operation in Visco Tool Bio print head is based on the endless piston principle or
progressive cavity technology and driven by a stepper motor. Due to the dispensing geometry, a
constant volume per revolution is always conveyed and precisely dispensed, meaning almost zero
dead volume can be achieved. Unlike in the pneumatic print heads, the environmental factors, such
as the ambient air pressure, temperature, or the filling level of the cartridge, no longer play a major
role in the printing process with Visco Tool Bio.
The single-use cartridge/cap has a volume reservoir of 5 mL, and it, together with the rotor and
piston, is replaced after each dispensing procedure. Due to the use of a single cartridge per material,
there is no danger of cross-contamination. The Luer-Lock connection at the bottom end allows you
to choose from various dispensing needles.
Visco Tool Bio is compatible with various commercial and noncommercial materials ranging from
low to high viscosity. It can print hydrogels & cell-laden material, conductive inks, as well as ceramic
pastes. Precision technology leads to perfect contours, fine lines, and clean start and endpoints.
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