Month: March 2019

Reducing multi-material waste and print time with ‘Purge Buckets’

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Reducing Multi-Material Waste and Print Time with Purge Buckets.
Basically, the purging is after the nozzle finishes printing color, the nozzle will go to a point at the top corner or the printer. The bucket would move under the nozzle. The nozzle will purge out filament into the bucket. The bucket moves out of the way. Finally, the nozzle goes moves back to where it was printing.
Purge bucket is an easy solution for industrial versions of in double headed machines.

According to some comments from 3DMN, “Purge block and purge bucket material are not too useful. Since 3D printing is developed enough nowadays, maybe it’s time for more filament recycle equipment to be introduced to the market. I know there are a few of them but they might need improvement while they are a bit expensive.
According to views, “it is a great idea, really nice functional print, the purge block on large sections of 1 color really grinds my gears.
No purge, no prime, the only cost of multi-material is the time it takes for each head to park and get back to the print.
Try to have the extruder purge on a ramp, about 45-60 degrees. This curls up the filament into a nice blob and when it cools, it just slides off. This reduces the volume of the purse strings. My Stratasys uses a system like that.
Or you simply program it via code, to create separate purge towers each of one distinct color. You can recycle those purge blocks as near pure separate color blocks. This will be above 90% purity. That way you have near zero waste at near 90%+ color purity. That’s a color purity estimate I think could be easily achievable. Either you recycle it.
If you own a filament maker machine or you create a business opportunity for a local maker who has a filament maker machine and sells them your purged color separated filament blocks. You can then buy back the recycled filament from them or simply use the money to buy new filament”.

http://geni.us/PolyalchemyFX

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3D Printing News Alert(3D printed sugary stent)

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According to Nebraska engineer Ali Tamayol, assistant professor of mechanical and materials engineering,” One of the plastic surgeons told us about the challenges of this kind of microsurgery — how time-consuming it is, how skill-dependent it is. We are always trying to avoid sugar. Everyone knows that sugar is (sometimes) bad. But here we found an application in which it’s good. 3D printing customizing the stent’s diameter to individuals and areas of the body. By dissolving their sugar-based concoction in water and baking the solution until most of the water evaporated”.
The team detailed its stent design in the journal Advanced Healthcare Materials.
Tamayol authored the study with doctoral student Azadeh Mostafavi and master’s student Arian Jaberi, both of Nebraska; Ali Khademhosseini from the University of California, Los Angeles; Harvard Medical School’s Ali Farzin, Amir Miri, Negar Faramarzi, Yu Shrike Zhang and Nasim Annabi; Fatemeh Sharifi from the Sharif University of Technology; and Ricky Solorzano of Allevi Inc.

http://netnebraska.org/article/news/1161555/3d-printed-sugar-stents-could-help-doctors-operating-room

https://news.unl.edu/newsrooms/today/article/sugary-stent-eases-suturing-of-blood-vessels/

3D Printing News Alert(3D Printed implant to treat spinal cord injury)

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According to professor of neuroscience and director of the Translational Neuroscience Institute at UC San Diego School of Medicine, “Axons are the long, threadlike extensions on nerve cells that reach out to connect to other cells”.
According to Co-senior author Shaochen Chen, Ph.D., professor of nanoengineering and a faculty member in the Institute of Engineering in Medicine at UC San Diego, “Like a bridge, it aligns regenerating axons from one end of the spinal cord injury to the other. Axons by themselves can diffuse and regrow in any direction, but the scaffold keeps axons in order, guiding them to grow in the right direction to complete the spinal cord connection”.
According to co-first author Wei Zhu, Ph.D., nanoengineering postdoctoral fellow, “This shows the flexibility of our 3D printing technology. Vascularization is one of the main obstacles in engineering tissue implants that can last in the body for a long time”.

https://health.ucsd.edu/news/releases/Pages/2019-01-14-three-D-printed-implant-promotes-nerve-cell-growth-to-treat-spinal-cord-injury.aspx?_ga=2.115182983.1440351564.1553465131-1484025659.1553465131

3D Printing News Alert(3D Printing materials market by 2025)

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According to the 3 D Printing Materials Market, “The 3 D Printing Materials Market is segmented based on material type, form, and application. The 3 D Printing Materials Market is segmented based on material type as Plastics, Metals, Ceramics, Others. The 3 D Printing Materials Market is segmented based on form as Filament, Powder, Liquid. The 3 D Printing Materials Market is segmented based on the application as Aerospace & Defense, Medical & dental, Automotive, Consumer Goods, Others.
The 3 D Printing Materials Market geographic segmentation covers various regions such as North America, Europe, Asia Pacific, Latin America, Middle East, and Africa. Each geography market is further segmented to provide market revenue for select countries such as the U.S., Canada, U.K. Germany, China, Japan, India, Brazil, and GCC countries”.

https://www.marketwatch.com/press-release/3d-printing-materials-market-is-supposed-to-cross-usd-2500-million-in-2024-2019-03-22

https://www.marketresearchengine.com/reportdetails/3d-printing-materials-market

Aether AI for 3D Organ Printing

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According to Aether’s revolutionary Artificial Intelligence powered medical imaging software, “which will dramatically advance the development of 3D organ printing technology. Groundbreaking new medical 3D visualization software features completely automatic segmentation of organs and tissues. No editing tools, color sampling, calibration, or human intervention required. Convert patient medical images into accurate multi-material print files with just a few clicks”.

https://discoveraether.com/

INVIVO multiple hybrid bio 3d Printer

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INVIVO, Multiple Hybrid bio 3d Printer from ROKIT.
This hybrid bio 3d Printer will make new standard of bio 3d fabrication! Bio 3D printer can do direct skin printing. This bio 3d fabrication machine could all kinds of BIO inks, Hydrogel, Collagen, HA, Chitosan, Silk Fibroin, Silicate, Alginate, as well as medical grade polymers like PCL, PLGA, PVA and variety of choices of materials and reasonable price.
According to Yoo Seok-hwan, ROKIT CEO, “3D printing” industry as the new Industrial Revolution in 100 years!
Everything you can imagine ranging from shoes and buildings to a tabloid edition of the human body and artificial veins can be printed out.
Though being introduced to the market 30 years ago, popularization possibility of 3D printing has made it a buzz word these days.
In Korea, there is a figure who has been leading the movement of the popularization of 3D printing”.

https://youtu.be/BZZcjGvT41w

http://en.3disonprinter.com/product-invivo.php

3D printed cellulose sensors

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According to the professor Woo Soo Kim in the School of Mechatronic Systems Engineering, “Our eco-friendly 3D printed cellulose sensors can wirelessly transmit data during their life, and then can be disposed of without concern of environmental contamination. This development will help to advance green electronics. For example, the waste from printed circuit boards is a hazardous source of contamination to the environment. If we are able to change the plastics in PCB to cellulose composite materials, recycling of metal components on the board could be collected in a much easier way.”

https://onlinelibrary.wiley.com/toc/2199160x/current