If the solidify speed of different material is different, print individual object with different material 3D may very difficult. New-style Inkbit system solved this one problem, it already was used at printing height hand of complex functional sex machine. Commonly used “ adds material to make ” three-dimensional printer come through polymer of successive and deposit melt or other data layer compose builds an object. On cheaper printer, the crest line that does not agree completely between these layers and layer often clear and visible.
Printer of more advanced 3D ink jet remains layer upon layer accumulation, but they use many spray head deposit is much at the same time the polymer colophony of kind of type. Use ultraviolet solidify resin next, reoccupy is compositive drawknife scrapes the edges and corners between layer and layer. In whole presswork in the process, this kind of solidify and scrape process are in fast, undertake continuously.
If among them speed of solidify of a kind of resinous is gotten slower than other colophony much, the circumstance can become more intractable. Below this kind of circumstance, if drawknife is mobile enough fast, presswork in order to maintain exercise undertakes quickly, soft still colophony is met daub above. It still can adhere to go up in drawknife, make its cementation. This is the ground of the use force of Inkbit system.
Technical institute of federal of Inkbit You Suli world (ETH) with Masschusetts Institute of Technology (MIT) scientist joint development, its slam the door drawknife. Those who replace is, used a kind of technology that the name controls eject for the vision, to be being printed through camera of 4 tall frame frequency and two laser the surface of the object undertakes successive scanning.
These scanning are used at the object deepness plan with complex scale, any each flaws that go up can be after deposit be come down by the record instantly. When deposit issues, the velocity of flow of nozzle can undertake adjustment, in order to compensate these flaws, realize the smooth glide between layer and layer to cross thereby. Such, the colophony with slower solidify has opportunity sclerosis, backbone grain won't appear on finished product.
Demonstrate in technology in, researcher uses this technology to print gave the machine hand with a fine height, deserve to have emulation skeleton, ligament and tendon. Notable is, this hand is finished in printing exercise continuously, make by tigidity and stretch polymer colophony, they with different speed solidify. After need not be being printed, assemble.
Inkbit company is Masschusetts Institute of Technology derive a company, accepting the printing job of commercial client at present. The paper that concerns this technique is published in recently " natural " on the magazine.