Sacrificial Pattern
Sacrificial Pattern - Related Videos
08:31
Process of Making Three-dimensional Microstructures using Vaporization of a Sacrificial Component
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Cited by 7 •
2013
The Vaporization of a Sacrificial Component (VaSC) process is used to fabricate microvascular structures. This procedure uses sacrificial poly(lactic) acid fibers to form hollow microchannels with precise 3D geometric positioning provided by laser micromachined guide plates.
12:33
Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
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Cited by 25 •
2013
We describe experimental details of the synthesis of patterned and reconfigurable particles from two dimensional (2D) precursors. This methodology can be used to create particles in a variety of shapes including polyhedra and grasping devices at length scales ranging from the micro to centimeter scale.
07:41
High-Throughput Bioprinting Method for Modeling Vascular Permeability in Standard Six-well Plates with Size and Pattern Flexibility
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2024
We present a protocol for high-throughput production of vascular channels with flexible sizes and desired patterns on a standard six-well plate using 3D bioprinting technology, referred to as vessels-on-a-plate (VOP). This platform has the potential to advance the development of therapeutics for the disorders associated with compromised endothelium.
10:49
Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture
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Cited by 59 •
2013
A bioprinter was used to create patterned hydrogels based on a sacrificial mold. The poloxamer mold was backfilled with a second hydrogel and then eluted, leaving voids which were filled with a third hydrogel. This method uses fast elution and good printability of poloxamer to generate complex architectures from biopolymers.
13:51
Cross-Modal Multivariate Pattern Analysis
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Cited by 6 •
2011
Classical multivariate pattern analysis predicts sensory stimuli a subject perceives from neural activity in the corresponding cortices (e.g. visual stimuli from activity in visual cortex). Here, we apply pattern analysis cross-modally and show that sound- and touch-implying visual stimuli can be predicted from activity in auditory and somatosensory cortices, respectively.
FAQs
The pattern is designed from a material that can be dissolved, melted, burned out, or mechanically extracted after the surrounding structure has formed. The key requirement is compatibility between the removal method and the component material, so the temporary model disappears while the intended cavity, channel, or internal feature remains intact.
They allow manufacturers to create internal geometries that conventional tooling may not reach or release from easily. After removal, the resulting cavities or channels can reduce unnecessary material while preserving intricate external or internal forms. This makes the approach valuable when a component must combine geometric complexity with a lightweight structure.
Permanent tooling generally remains available for repeated shaping operations, whereas a sacrificial pattern is consumed or extracted during fabrication. That difference enables features that would be difficult to demold or machine with conventional tools, including enclosed voids and intricate internal passages. The tradeoff is that the temporary model must be recreated for another component.
A temporary model is first formed in the geometry required for the internal feature. The surrounding component is then produced around or around the pattern through a process such as casting, molding, or microfabrication. Finally, the pattern is dissolved, melted, burned out, or mechanically extracted, leaving the designed cavity or channel.
Engineers would consider this approach when a component requires complex geometry, enclosed voids, internal channels, or reduced weight that conventional tooling cannot readily provide. It supports advanced manufacturing and prototyping, where intricate structures may be more important than retaining a reusable internal tool. The method is also relevant to aerospace, biomedical, and mechanical engineering applications.
The underlying strategy remains consistent across these processes, but the surrounding structure and feature scale can differ. In casting and molding, the pattern helps establish internal geometry before removal; in microfabrication, it can define small cavities or channels. These uses extend manufacturing beyond accessible surfaces and support intricate component architectures.