Talk:Powder bed and inkjet head 3D printing

Untitled

I created this page because we have a page called 3D printing that is linked by some pages that refer to this technology (for example Solid freeform fabrication Refers to this technology as "3d printing") but the 3d printing page instead is a page that talks about different technologies (like FDM, SLS, DLP, etc.) so there is not a page about this particular technique. I know that there are a lot of redundant pages about 3d printing that should be merged, but this technique deserves its own page I think. --Argento (talk) 12:10, 22 March 2011 (UTC)

This page needs to be updated. Objet now has ink-jet printer based machines that use UV light to cure the material they dispense from the print head. This page does not currently reflect that. — Preceding unsigned comment added by Pwscottiv (talk • contribs) 23:44, 20 May 2012 (UTC)

Print Speed

I removed this sentence: "Parts can be built on a printer at a rate of approximately 1 vertical inch per hour." Not only was it uncited, but that phrase is meaningless as it uses inappropriate units. Example: if one printer is printing a solid cube with 1-inch sides, while a second printer is printing a solid cube with 10-inch sides, and they both print at 1 vertical inch per hour, the second printer is actually fusing material at a rate 100 times faster than the first printer, because its cross-sectional area is 100 times greater. A useful print-rate would be in volume throughput per second, not height advanced, as people can't translate a height/time figure to their application without some benchmark of cross-sectional area, and some people may be producing architectural models even larger than 10x10 inches. I have no problem with people adding a meaningful typical print speed if they can find a reliable source for one. 4ndyD (talk) 18:44, 22 May 2013 (UTC)

4ndyD, That's not necessarily true with powder bed printing. The printing phase of each layer is fairly quick, no matter how large the object is (though, may vary between differently made printers). What takes the most time, and nearly always the same amount of time each cycle, is the new powder layer phase. The end effect is you can be printing a 1.0x0.2 inch vertical nail or printing a 1x12inch pancake, it will take almost the same amount of time. If there is also a cure phase each cycle, then that will make it even more consistent. The difference over an hour is quibbling about 1/16th of an inch difference between vertical print rates. If you are talking about pretty much any other object printing method, then you would have a point. — al-Shimoni (talk) 06:56, 3 June 2018 (UTC)