What do I do with Simplify with printers that can not should

[Edwin]

Hi,

I use some time Simplify and with this time is more and more experience.
So I am working now to obtain very smooth surfaces at PLA and ABS almost exclusively with Layer heights below 0.1mm.

So I have a NEO of German RepRap is not intended for such a thing. This I have a little overworked and especially the pressure bed stiffened and so can now layer heights up under 0.02mm Print and with still good print times.

Here I have a chinese lion in the pressure of PLA and a layer height of 0.03 mm at 70 mm / s and a 0.5mm nozzle





Or what I have also printed the dolphin by Don Foley.
Layer height 0.02mm at also 70mm / s and a 0.5mm nozzle






For dolphin I also have a platform gestalltet represents the surface of water and I represent the Dolphin in jump. By the fine print, it is particularly easy even to paint it so that you can not recognize that it was printed.

I'm still learning and still do not see the end of the options when departing every now and then from the usual ways of thinking.

Greetings Edwin

[FDWorx]

Your print resolution is AMAZING!!!

[MichaelHerron]

I agree with FDWORKS... your prints look amazing..

I'm no expert in 3D Printing, but I'm learning a lot very quickly. My question is this:

With a nozzle width of .5mm, to achieve such small layer heights, the nozzle must be pushing plastic around quite a bit after extrusion. (overextruding, plowing, etc). This seems like it would negate any gains you might see printing at such a reduced layer height. Any experts want to weigh in on this?

that being said, your prints look stunning!

[Edwin]

Hi Michael,

I hope I have now understood your question correctly to answer them.

The size of the nozzle does not really matter for the quality of such large prints at low altitudes Layer. I use the 0.5mm nozzle to why mitder but relatively fast rate a larger quantity PLA to force in a shorter time by the fusion zone and thereby clogging by crystallizing the PLA to avoid. The nozzle has, despite the small layer height no, or only minimal contact with the previous layer. If this is not so simply encourages too much material and should reduce it carefully.
The settings are but of course, the smaller the layer height is also getting tighter. From a certain level of extusion Multiplier is not accurate enough and I'm working then in addition to the filament diameter to fine tune it.

Greetings Edwin

[dkightley]

Taking this one step further....has anyone any experience of printing layers as thin as this with a nozzle size of 0.2mm???

Printing models in 1/450 scale is a challenge when you consider one 0.4mm width layer is the equivalent of 18cm !!

[JoeJ]

I can't imagine how slow that build would be at 0.02mm layer heights, but the quality sure looks good! It would get even slower using a 0.2mm diameter nozzle instead of the default 0.5mm nozzle. Some quick time estimates in S3D show that printing at 0.02mm layer height with 0.2mm diameter nozzle would create build times that are around 12x longer than their standard 0.5mm diameter nozzle profiles. So use at your own risk!

[dkightley]

Just to illustrate the scale I am referring to, here's a sample of what I have achieved with a 0.4mm nozzle printing at 0.1mm layer thickness:

This girder is 5mm x 5mm x 26mm long. The ends are support that I have designed to be removed....making the girder about 22mm long.

Has anyone else had any experience printing at this small scale???

[Edwin]

I'm working with a new printer is to allow me such a fine layer heights even faster to print with the same precision. The stability and the first printed results look as far from ideal though I've revised the printer. Only I have to wait a little longer, because I unfortunately had to complain about loss of steps at the supplier which occur again and again even with minimal speeds, since this was apparently set incorrectly.

Let's see, so far I have still managed to run this far on the manufacturer's specifications, with good results and with this I want to reach over 300mm / second of speed without sacrificing the quality of each printer.....

[MichaelHerron]

Hi Michael,

I hope I have now understood your question correctly to answer them.

The size of the nozzle does not really matter for the quality of such large prints at low altitudes Layer. I use the 0.5mm nozzle to why mitder but relatively fast rate a larger quantity PLA to force in a shorter time by the fusion zone and thereby clogging by crystallizing the PLA to avoid. The nozzle has, despite the small layer height no, or only minimal contact with the previous layer. If this is not so simply encourages too much material and should reduce it carefully.
The settings are but of course, the smaller the layer height is also getting tighter. From a certain level of extusion Multiplier is not accurate enough and I'm working then in addition to the filament diameter to fine tune it.

Greetings Edwin

My concern primarily would be the viscosity of the melted plastic. True, the orthogonal direction of the extrusion relative to the layer should make nozzle width independent from layer height, but actual physics don't work that way. The resistance to shear of the melted plastic should influence the shape of the plastic extrudate. I haven't tested these limits with any controlled experiments, but i certainly have been victimized by them!

Again--your prints are stunning. I'm not trying to throw mud on your accomplisments--i'm just trying to understand and learn more about the process.