3D printers

comparison of 3D printers: https://en.wikipedia.org/wiki/Comparison_of_3D_printers

2016 TCT 3D printing show (latest HP, Stratasys, Renishaw, PhotoCentric, Mcor, Tiertime, Lulzbot, Zortrax, Polaroid, Sinterit and Sintratec 3D printers): https://www.youtube.com/watch?v=OfjI9sZzetQ

preparing Rhino model for 3D Printing, Formlabs’ PreForm software and 3D printer:

3D printing at 2019 TCT Show, held in Birmingham, UK: https://www.youtube.com/watch?v=1QRzS1BXy9Y

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Dan Gelbart explains metal 3D printing: https://www.youtube.com/watch?v=nyYcomX7Lus

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…always worth watching…

Review of cheap 3D printers (00:00 introduction | 01:19 material extrusion | 04:11 vat photopolymerization | 05:40 material jetting | 07:07 binder jetting | 08:37 powder bed fusion | 10:10 sheet lamination | 11:10 3d printing evolution): https://www.youtube.com/watch?v=iwg_rrjV7i4

British National Centre for Additive Manufacturing (NCAM) has many metal 3D printers. They make aerospace parts. video: https://www.youtube.com/watch?v=bG-1bv_3GFo

Arcam Q20+ is the best metal 3D printer used by the British NCAM.
part 1: https://www.youtube.com/watch?v=XUdSbOe1z_g
part 2: https://www.youtube.com/watch?v=yJAp7Z6Cg8E