Gordon Heydon wrote:
Hi,
On 23 Oct. 2016, at 5:28 pm, Rohan McLeod via luv-talk <luv-talk@luv.asn.au> wrote:
Paul van den Bergen wrote:
pretty much the same as for regular printers.... XY resolution and Z resolution are typical. However, having said that, your results may vary... the resolution of the stepper motors (or laser) may well exceed the resolution of what can be accurately laid down, and certainly the minimum thickness of a single line of material may be considerably larger than that of the minimum resolution achievable kn a given surface. Yes from : https://all3dp.com/3d-printer-resolution/ It seems consumer 3D printers don't do much better than 0.3mm; but frankly even that seems better than the little 3Dprinted figurines I have seen; which off the top of my head seemed more like +/- 1.00mm ! Are the errors in 'dot size ' ( blob size ?) cumulative ? From : http://www.ilios3d.com/en/product-documentation/ilios-documentation-3dprint-... it seems there should be a "blobs per cubic centimeter " (bpcc ?) measure ; analogous to dpi in a traditional printer ? I think this is rubbish! I am a RepRap Wallace (very modified) and I am able to quite easily print to 100 microns (0.1mm). This main difference I find between RepRap printers and commercial ones like the Ultimaker is that RepRap require a lot more nursing and TLC compared to the high end printers and right now once of the best printers you can get is the Prusa i3 MK2 which is a RepRap printer.
Gordon I don't doubt you; but the issue (for me) was how to describe the resolution of a 3D printer ?; some of the truelly atrocious artifacts I have seen from cheap (I presume) 3D printers look like a sculpture made from , a 2mm diameter 'tube' of extruded thermo-plastic ! regards Rohan McLeod