What is 3D printing, and what are safety precautions for manufacturing?

3D Printing News Alert(Higher temperature responsive 4D printing)

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According to Chen X, Liu X, Ouyang M and Dr Connor Myant, a lecturer at the Dyson School of Design Engineering and Imperial College London (ICL),”explored 4D printing and its potential to herald new opportunities for industries and consumers.,”a novel electrochemical 3D printer with 2 deposition nozzles was presented which is capable of printing temperature responsive multi-metal (copper and nickel) 4D structures. An electrospun nanofibre nib was used to provide sufficient back pressure to the hydraulic head exerted by the electrolyte, replacing the porous sponge material used in prior works”.

https://www.imperial.ac.uk/news/186747/in-pictures-technologies-future-revealed/

https://www.imperial.ac.uk/

https://www.nature.com/articles/s41598-019-40774-5

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Dr. 3D Printer precautions for advanced manufacturing( Laser Cutting with a 3D Printer )

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I am using useful comments for this youtube video:)

Please use some precautions if you are using Laser Cutting with a 3D Printer” It is very very important to use the carbon monoxide detector.part cooling fan” style fan it will help you when you cut. It reduces the risk of something catching fire and blows away the burned wood so the laser can reach the uncut wood.

It might risk sooth accumulating on the lens and eventually blocking enough light that you damage the lens itself with the heat.
You need ventilation and more than just an open window. If you want to use the airbrush compressor into a vacuum pump to pull away from the smoke. I will be worried that you can see the laser beam through the safety-glasses.
 
If you want to prevent the face from getting charred, put painter’s tape on top.
If you want the laser performance to last you need another mini fan to blow out the smoke so the residue of that smoke won’t be impaired on the laser beam output if you don’t blow air in the output focus lens that lens Will get covered with the smoke residue and destroy it so you need to blow air on the output lens and evacuate the smoke at the same time, you can add a mechanical end stop to the laser to home the Z, as the laser never needs to be hitting the bed or print like a nozzle,

To prevent the scorching just add some masking tape on top of the plywood. Did you think about designing an enclosure for the hypercube? That would be the best for ventilation of all those nasty laser fumes”.

Suggestions for height adjustment–
+1 on adjusting the z height with each pass to keep the focal length the same and +1 on some air assist as the smoke will reduce the laser’s power. With both mods, you’d cut through in fewer passes.
 

Tech2C.

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