#3d laser printing

[annaxmalina]

{2023} mothlight

3d scan: https://teia.art/objkt/833905

[cottonkhaleesi]

So I’ve held this close to my chest in case it went horribly wrong, but I love working in a place full of scientists, engineers and general tech enthusiasts because it means when I came across someone’s open source 3D printed and laser cut design for a 4-shaft loom, there were plenty of enthusiasts ready to help make it a reality.

I’ve had great fun over my birthday weekend putting together the bits I’ve gotten so far (only missing the dowling that I’ve ordered and the flexible tpu parts -the heddles)

She also glows in the dark and folds!! you can see the back two arms in the folded position and all the 3D printed parts were made of glowwy filament, which is my favourite thing ever, as an added treat 🌖

There’s still some hiccups to address, such as no assembly instructions, everything (including the screw paths) being mirrored from one side to the next (plus ratchets on BOTH sides??) and I definitely have not quite worked out the how the folding mechanism/lock functions (and I’ve put my reeds on back to front 🤦🏻) but those are all problems for when I’ve got the rods and cut them to size and it starts to feel like a functioning object!!!

[materialsscienceandengineering]

Laser-based 3D printing: A powerful tool to advance optical microscopy

Today, optical microscopy is one of the most widely used methods in various multidisciplinary fields for inspecting objects, organisms, or surfaces on a small scale. However, its lateral resolution is fundamentally limited by the diffraction of light—a constraint that, with the use of conventional lenses, has become increasingly critical as the demand for higher resolutions grows. The integration of a dielectric micro-sphere behind the last imaging lens of an optical microscope offers a promising solution to significantly enhance lateral resolution, a research area known as micro-sphere-assisted microscopy. However, in practice, the use of commercially available dielectric micro-spheres comes with substantial limitations. Cumbersome workflows are required for proper handling of the micro-spheres, and the sizes of commercially available dielectric micro-spheres are also limited. These challenges hinder the widespread application of micro-sphere-assisted microscopy as a cost-effective alternative to expensive microscopy solutions, such as scanning electron microscopy or atomic force microscopy.

Read more.

[405blazeitt]

the conversation on artist merch and manufacturing is one i'm interested in because i like having my digital pictures as physical objects now and then and i don't know enough about the ethics or economics of it to have a real stance on it, but i do know enough about it to know that a lot of the folks talking about it don't know enough to be talking about it

[joleneghoul]

Tested my screens they work very good excited to slap these on stuff and make more designs.

(Underglaze on rice paper)

[cyrusmehdipour]

Controlling Plastic Injection Machine Nozzle Movement with a Digital Las...

[solradguy]

Guilty Gear

[sleepysoulsart]

This is my first big project with my new 3D printer! Might be more updates to come if I'm able to rig up lights and a laser pointer...

Fallout 3 laser pistol, designed by dragonator, printed in white, painted by me.

[heresiae]

ma lo sapete quanto è difficile trovare singoli componenti elettronici a Torino?

una ricerca su google a riguardo per l'80% delle volte porta a negozi di telefonia. TELEFONIA.

e il negozio di elettronica che avevo trovato che effettivamente vende singoli componenti? diversi non li aveva. parliamo di led a diode, non motorini elettrici e i loro montanti (che poi ho scoperto che un blocca tubo va benissimo. inciso, trovare SOLO i motorini è quasi impossibile, ti danno anche le ruote. che poi non è andata male dato che le usate al posto di quelle in dotazione su una macchina programmabile e funzionano meglio). aveva anche finito le resistenze 1k (ho soperto che l'omega significa Ohm e la k è il kilo, ovviamente. cosa significhino nel concreto ancora non lo so, ma finché riesco a distinguere il simbolo della resistenza e il loro valore su disegno di tracciato, va tutto bene. poi mi hanno detto che le 1.2k vanno bene uguale per le luci, quindi ora sono molto confusa).

domani sera andrò in un altro non troppo distante dal lavoro, perché il resto l'ho comprato online (un pulsante momentaneo in metallo me lo voleva far pagare 9 euro l'uno e io con 10€ ne ho comprati tre da 19mm, con 7€ sei da 12mm). anche gli interruttori tondi non li aveva se non in rosso e nero e non è che mi metto a dipingerli (e online te li vendono solo in bulk. speravo di poter evitare).

ovvio che non voglio comprare online i led a diode, me ne danno 200. io ne ho bisogno 9. solo che è un led a cambio colore automatico quindi potrei dovermi attaccare al cazzo a na certa.

ero entrata con una lista per una decina di cose e ne ho comprate tipo 4. non mi ricordo che mio padre facesse così tanta fatica, ma in effetti lui non ha mai cercato di costruire busy box da instructables cercando di convertire tutto (misure, disegno, materiali) dall'americano all'italiano (con gli interruttori è stato... interessante xD).

(e cmq col piffero che uso tutto quel fil di ferro e colla a caldo per fissare le cose. si faranno per bene, con viti, dadi - i pulsanti hanno tutti i loro dadi, why did he glue them?!? - e filo come si deve. tranne le lampadine. che, tra l'altro, non ha usato ferma cavi, sono ferma tubi anche quelli. ingegnoso però. si, ho trovato TUTTO. tranne i led multicolore...).

(ah, se volete farlo, sappiate che le misure del taglio laser son tutte da rifare. appena ho convertito la visualizzazione da pixel a cm praticamente era tutto ristretto di un 10-20% rispetto alle misure attuali. riposizionare i buchi per il motorino è stato simpatico! anche perché Inkscape, a differenza di tutti i programmi di design che ho usato, non ti da la distanza tra un oggetto e l'altro semplicemente alla selezione e comando da tastiera... malnati. la prossima volta ci provo con figma, vediamo come va...).

[isa-the-great-and-powerful]

It was this! Times up on guessing. Giant zipper puller for Bridget's jacket!

[annaxmalina]

{2023} µ-Rhythmus

3d scanned version here: https://teia.art/objkt/842061

[cottonkhaleesi]

Finally at a stage of actually trialling out this loom (despite all my weaving accoutrements being in storage and reverting to a slapdash cereal box shuttle)! It has a few niggles; namely that the designer clearly doesn’t weave herself, thus didn’t know the practical differences between a 4-shaft and rigid heddle loom, just the cosmetic ones. But unexpected side effect I do love: being able to balance my laptop on top of the whole thing because the shaft controls are on the sides! Wooo!

It works!! Look at that beautiful zigzag pattern.

[materialsscienceandengineering]

Researchers have developed a new two-photon polymerization technique that uses two lasers to 3D print complex high-resolution structures. The advance could make this 3D printing process less expensive, helping it find wider use in a variety of applications. Two-photon polymerization is an advanced additive manufacturing technique that traditionally uses femtosecond lasers to polymerize materials in a precise, 3D manner. Although this process works well for making high-resolution microstructures, it isn't widely used in manufacturing because femtosecond lasers are expensive and increase the cost of printing parts. "We combined a relatively low-cost laser emitting visible light with a femtosecond laser emitting infrared pulses to reduce the power requirement of the femtosecond laser," said research team leader Xianfan Xu from Purdue University. "In this way, with a given femtosecond laser power, the printing throughput can be increased, leading to a lower cost for printing individual parts."

Read more.

[foxyou-too]

kuniko maeda

[prachicmi]

Metal Additive Manufacturing: The Rise of Additive Manufacturing in the Metal Industry

Emerging Technology with Metal Additive Manufacturing Additive manufacturing (AM), commonly known as 3D printing, has experienced explosive growth in recent years. While initially used primarily for rapid prototyping of plastic parts, AM is now being widely adopted for production of functional metal components. Metals that can be 3D printed include stainless steel, titanium, nickel alloys, aluminum and copper alloys. Compared to traditional subtractive manufacturing methods, AM offers new design possibilities and advantages for the production of complex metal parts. Metal Additive Manufacturing Processes There are three main Metal Additive Manufacturing processes in use today: powder bed fusion, directed energy deposition, and binder jetting. Powder bed fusion systems mimic traditional 'layered manufacturing' by selectively fusing metal powder particles using a laser or electron beam. The most common systems are selective laser melting (SLM) and electron beam melting (EBM). In directed energy deposition, a laser or electron beam directs energy to fuse powder materials as they are deposited, allowing parts to be built outside of an enclosure. Binder jetting uses inkjet print head technology to deposit a liquid binding agent onto layers of powder, solidifying the final part through post-processing. Benefits for Complex Parts production Benefits of Metal Additive Manufacturing enables the economic production of complex parts that would be difficult or impossible to manufacture using conventional methods. Complex internal channels, optimized lattice structures and integrated features can all be built within a single part. This has significant benefits across various industries: - Aerospace: Weight reduction through topology optimization helps lower fuel costs. AM allows embedded features like cooling channels in jet engine components. - Medical: Implants can be better customized for individual patient anatomy. 3D printed orthopedic implants have complex porous structures that promote bone in-growth. - Automotive: Conformal cooling channels improve mold performance. AM enables net-shape production of parts with less assembly. - Energy: Turbine blades with lattice structures can withstand higher temperatures and pressures. AM facilitates single-piece constructions. New Design Opportunities Metal AM opens up entirely new possibilities for part and system design. Engineers can leverage topology optimization to remove non-critical material from designs without compromising strength or function. Internal structures like microlattices create tunable stiffness or customize heat/fluid transfer characteristics. Consolidation of multiple components into one 3D printed part reduces assembly time and costs. Designs can now take full advantage of digital blueprints without the limitations of traditional manufacturing constraints. Production Scaling and Quality While metal AM has made significant advances, further improvements are still needed for many production applications. Build speeds, part sizes and material options are increasing regularly as technology progresses. However, scaling AM from prototypes to mass production remains challenging due to long processing times and high equipment/material costs compared to conventional manufacturing. Quality assurance, consistency and repeatability are other ongoing focus areas. Establishing robust process control, standardization and certification will be important for qualifying AM parts in safety-critical applications.

Get more insights on, Metal Additive Manufacturing

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