Co2 Laser Drawing
Co2 Laser Drawing - Related Videos
06:22
Motor Learning in Mirror Drawing
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Colloquially, the terms learning and memory encompass a broad range of behaviors and mental systems, everything from learning to tie a shoe to mastering calculus (and a lot in between). Experimental psychologists have divided up learning mechanisms into groups that seem to have different properties, and that seem to rely on different brain systems. A major division is between declarative and non-declarative memory, roughly, the...
11:57
Fabricating Metamaterials Using the Fiber Drawing Method
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Cited by 23 •
2012
Metamaterials at terahertz frequencies offer unique opportunities, but are challenging to fabricate in bulk. We adapt the fabrication procedure for microstructured polymer optical fibers to inexpensively fabricate metamaterials potentially on an industrial scale. We produce polymethylmethacrylate fibers containing ~10 μm diameter indium wires separated by ~100 μm, which exhibit a terahertz plasmonic response.
01:16
Drawing Free-body Diagrams: Rules
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2023
The first step in describing and analyzing most phenomena in physics involves the careful drawing of a free-body diagram. Free-body diagrams are useful in analyzing forces acting on an object or system, and are employed extensively in the study and application of Newton's laws of motion. The steps to draw a free-body diagram are listed below: • Draw the object under consideration. If treating the object as a particle, represent the object as a point. Place this point at the origin of a...
05:27
Drawing Blood from Rats through the Saphenous Vein and by Cardiac Puncture
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Cited by 87 •
2007
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07:56
Drawing and Hydrophobicity-patterning Long Polydimethylsiloxane Silicone Filaments
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Cited by 3 •
2019
Here, we present a protocol to produce long filaments of polydimethylsiloxane (PDMS) silicone by gravity-drawing through a furnace. Filaments are on the order of hundreds of micrometers in diameter and tens of centimeters in length and are hydrophobically patternable via an Arduino-controlled corona discharge system.
FAQs
The three variables jointly determine how much energy reaches each location and how strongly the surface responds. Power sets the available laser energy, while scanning speed and exposure time govern how long a point receives irradiation. Their combination can produce localized heating, melting, vaporization, or discoloration, so changing settings changes line appearance and the boundary between marking, engraving, and cutting.
Electrical excitation energizes the gas mixture, allowing it to produce infrared radiation through stimulated emission. Mirrors then guide the radiation, and focusing concentrates the beam at the working surface. This arrangement is important because it combines energy generation with controlled direction and spatial concentration, allowing the drawn path to be placed accurately rather than heating a broad, uncontrolled region.
These outcomes differ mainly in how the material responds to the delivered energy. A surface may discolor for marking, melt or vaporize more material for engraving, or undergo enough localized removal to form a cut. The same controlled beam path can therefore support different operations, with power, speed, and exposure determining whether the result remains a visible surface change or becomes deeper material removal.
A basic sequence begins by selecting the surface and the desired path, then energizing the gas mixture to generate infrared radiation. Mirrors guide and focus the beam, while scanning directs it along the programmed line, pattern, or image. The beam’s local interaction with the surface then creates the visible result through heating, melting, vaporization, or discoloration.
The technique can be applied to wood, acrylic, paper, and some metals, although the visible or structural result depends on how each material responds to localized energy. Wood, acrylic, and paper may be used for drawn designs, while the same process can support marking, engraving, or cutting. Material choice therefore helps determine the practical purpose of the experiment or fabrication task.
It connects several physics principles in one observable process: electrical excitation, stimulated emission, infrared radiation, mirror-guided propagation, focusing, scanning, and energy transfer to matter. Students can relate beam position to spatial precision and compare how different power, speed, and exposure conditions alter the surface. The activity therefore links laser operation with measurable changes in material appearance or structure.