Next Article in Journal
A Conceptual Test for Cognitively Coherent Quantum Gravity Models
Previous Article in Journal
A Low-Cost, Wearable Opto-Inertial 6-DOF Hand Pose Tracking System for VR
Open AccessArticle

Paste Extruder—Hardware Add-On for Desktop 3D Printers

Faculty of Engineering and Management of Technological Systems, University Politehnica of Bucharest, București 060042, Romania
Author to whom correspondence should be addressed.
Technologies 2017, 5(3), 50;
Received: 10 July 2017 / Revised: 4 August 2017 / Accepted: 6 August 2017 / Published: 8 August 2017
This paper presents the design, development and testing of a paste/clay extrusion device intended to be used as a drop-in replacement for the conventional thermoplastic extruder of a desktop filament-based 3D printer. A plastic cylinder loaded with gel, paste or clay material is placed into the device. Feedstock is pressed through an extrusion nozzle by a piston driven by an electrically actuated drive-screw and nut mechanism. The device allows the build material to heat up to 80 °C. Forced air cooling is used to assist the cooling or hardening process of the freshly-printed material during fabrication. The feedstock container, nozzle, and material-loading process are all suitable for use in a sterile environment. The device is designed for seamless integration with existing 3D printing firmware and slicing software. After designing the device, a prototype was produced and installed on a 3D printer. Silicone and acrylic polymers, as well as dental gel, were used to fabricate 3D printed sample objects. View Full-Text
Keywords: additive manufacturing; 3D printing; paste extrusion; fused deposition modeling additive manufacturing; 3D printing; paste extrusion; fused deposition modeling
Show Figures

Figure 1

MDPI and ACS Style

Amza, C.G.; Zapciu, A.; Popescu, D. Paste Extruder—Hardware Add-On for Desktop 3D Printers. Technologies 2017, 5, 50.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop