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DESIGN 53
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Additive technologies have been available for several requirements; this item, namely, an attractive, safe-to-use play
decades, finding use in mechanical engineering, the automotive cube, was materialised with current manufacturing recipes and
and aeronautical industries, healthcare sectors, education, the options (including additive technologies, such as 3D printing)
production of consumer goods (such as electrical appliances as well as non-conventional machining.

for the home), and multiple other domains. The customer-related details are specified below. To reach
In recent years, additive manufacturing has experienced major the preset goals and to comply with the legal regulations
progress, with a broad set of newly introduced techniques and concerning the safety of the technological and structural
materials, inclusive of innovative polymers and photopolymers solutions, we respected, above all, the Czech Republic’s Act no.
(fluid resins). A procedural option utilising such materials is 3D 102/2001 Coll., on General Product Safety, and standard ČSN
printing, where the substances are usually connected layer by 91 0100 Furniture—Safety requirements; the product testing
layer, in agreement with the data of the relevant 3D model. at an accredited laboratory was then performed accordingly
Photosensitive resins can be hardened through laser or and subjected to a relevant analysis.
sunlight, and their fluid form is employed in, for instance, The applied research exposed in this article focuses

the healthcare industry to manufacture dentures and other on the properties and use of a new birch plywood-based
prostheses. In the given context, it is possible to refer to minor furniture component. To promote recycling and circular
corn-based filament, which has become popular thanks economy, the following materials and parts were preferred:
to its non-toxic composition. The most widely applied and joinery plywood, corn-based filament, polyurethane foams,
cost-effective substance rests in polylactic acid (PLA), derived and neodymium magnets.
from plant matter. The resulting cube is multifunctional; suitable for the
A frequently encountered variant, the PLA-CC, exhibits present-day home, school, and kindergarten; has been tested

improved hardness, toughness, compressive strength, wear for robustness and stability; and exhibits a potential to influence
resistance, and other favourable parametric changes, as is the designing schemes in its sector.
documented by Fouly et al. on a hip joint implant. A similar scenario is outlined in a previously published paper
The overall technological and scientific advancement in by Svoboda et al., which discusses the mechanical capabilities
various domains and subsectors has intensified the interest of design products in relation to the matter employed (plastic,
in unconvenional machining options (laser/CNC plotter). wood, metal, and ceramics).
These approaches facilitate cutting, slicing, or engraving The researchers examined 3D-printed samples from
in different materials (cardboard, paper, wood, plywood,
textiles, composites, and metals) by means of a laser beam.

The actual operations are commonly preceded by traditional
machining; in wood, for instance, the refining steps comprise
sawing, milling, turning, carving, and grinding.
Laser cutting and CNC machining embody comparatively
modern procedures, and, together with the traditional routines,
they are subsumed under subtractive manufacturing.
Utilising such preconditions, the project herein was formulated

to deliver technical drawings and a functional procedure that
allowed building a specially designed element to customer