I meant the DIY repraps (of which I have never seen a quality print from.
Well maybe you haven't seen many Reprap prints then?
They are literally the same, same hardware and for most printers (like Ultimaker, Printrbot, Solidoodle) all these use use exact same firmware and software, only you have to source the parts yourself or buy a kit which is just all the parts sold by one person + optional assembly instructions, and then assemble it yourself. The price difference doesn't justify the wasted time to me personally to get a Reprap myself.
And while most printers do use similar stepper motors, you have to admit some are better than others...if I remember to, ill print a single layer and measure it
You'd be surprised how many 3d printers use the exact same Nema 14 and Nema 17 motors. And for those that don't, better means higher torque and life expectancy, not accuracy.
Oh, and you may want to read the articles before posting...that supports the idea of a .1mm layer height....not sure what the point of posting that is.
The point is simple: you said the claims of printing at 100 microns being a marketing gimmick is "not true at all", I linked to an article by a 3d printer company owner explaining how almost every machine can do that, proving that it is in fact a marketing gimmick.
What do you mean "it supports the idea of a .1mm layer height"? He just says the companies specify quality in terms of layer height because it is most visible to the end user, but it isn't. And he proves it himself in that very article:
To further compound the problem of specifying the X-Y resolution, it's important to remember that the printhead is extruding plastic through a 0.35mm nozzle. It's important to remember that ABS plastic oozes and expands a bit when it comes out of the nozzle. So imagine trying to define the exact position of a garden hose nozzle on an automatic sprinkler system to within millimeters. Even though the motor on the automatic sprinkler may be capable of positioning the water nozzle to within millimeters, in the end the water is going to going to spray out of the big nozzle over a wide area in a somewhat random manner. The same is true of the plastic extrusion nozzle of a 3D printer, although on a smaller scale.
You're referring to this:
So to simplify the specification of resolution, we typically define it in terms of the layer height, which will be most visible to the end user.
The text that is balded is a lie. Same Cervantes is the founder of the Solidoodle 3d printer, of course he'll say that, But it's a lie. You know it's a lie because of what he said right above that.
Try printing a 1x1x1cm cube. Compare the quality of the top face, where there are 3mm seams with the sides, where there are 1mm (the layer height) seams. Can you say with a straight face that the good quality of the side faces were more visible to you than the poor quality of the top face?
Unless you print very pointy models, the resolution of the X and Y axis will be no less visible to you than the Z axis.
So yes, it's a marketing gimmick. If you still don't believe it is, just ask it in the 3d printing communities. Others already have and have gotten the exact same response as mine: Ultimaker 2 and .02 layer resolution, just marketing or true? (Page 1) ? 3D Printer Discussion ? SoliForum - 3D Printing Community
I think I provided all the info there is, but if you have more to discuss about this, we can talk over pm, email, 3d printing forums or google group. This is getting pretty off-topic.
