Hi @3DMuse,
That’s the point: the Zortrax is insane in terms of reliability and quality. I’m trying to understand what’s the limit of this machine: for example, I’ve noticed that it has got quite a lot of problem in printing small, thin and tall objects.
I’ll try to print something similar and I’ll let you know what will be the result.
If we’re talking about the limits of Zortrax then I would say its retraction has some weaknesses. When printing chess pieces, 8 pawns at once for example, the surface has a lot of blobs. Cleaning it would result in scars.
And you’re right, small objects are quite difficult to print. You are limited to the 0.4 mm nozzle. Another point is the machine cannot print 100% infill. So some small objects that require infill will be hollow and just have walls. In the end the part won’t work. A recent example I printed is this Axis Aligner for Ultimaker by owen - Thingiverse 22
Set it to maximum infill but the part is non usable as it is too weak. In the end had to print it on my Ultimaker. Surface quality was good, just non usable. Those are the few examples where I think other printers do much better. Other than that it’s still my favourite machine, it just works without you needing to mod your bowden tube and feeder, thousand settings, trial and error etc.
So my conclusion is, there is no perfect printer out there, you need probably 2-3 good printers whose strength compliment each other. Then you can print all materials like a pro.
i normally print a single wall cube to get my flow rate right. ie with a 0.4 nozzle i print a single wall cube with 0.4 thick walls
other than that i use standard settings in cura
of course i use the single wall cube to also test dimensions are correct
btw i’m not one of those that go wooow fast print times
i aim for quality and dont care if it takes longer
oh yes… those that says to print marvin… why not advanced marvin?
Hi @Boelle,
Thanks for your suggestion, I’ll try to print it immediately both on a Zortrax and on an Ultimaker 2+!
Federico
what printers do you have in the Amsterdam office?
it could be nice if your work could end up with a kind of guide on how to tune settings to get the max out of a printer
not just the big brand ones but also us “poor people” with kit build ones
At the moment, we have:
I’m trying to figure out which one can be a good calibration/quality test, that can be printed also with printers that aren’t so professional as the Zortrax, Ultimaker os Sigma.
These are stress tests. They are great for testing speed, cooling, extrusion temps, retraction.
Calibration for dimensional accuracy is something different. It’s done with simple shapes and a caliper.
I like this one: Perimeter width Test object - slices nices by lshachar - Thingiverse 44
It’s very simple but if you print parts that need to fit together, it’s very useful. Usually the first thing I print on a new build. Once I achieve dimensional accuracy and parts that fit together, I’ll move on to the stress tests.
-Jesse
Hi!
There are TONS of great 3D printer “tests” on the internet. You seem to have found a few good ones, along with others in the forum. Personally, I typically just print a 20mm cube. While the test is simple, it helps calibrate your printer’s dimensional accuracy. You seem to be printing more stress/torture tests, but dimensional accuracy is important too. I hope this helps!
Hi @Jackson277,
Thanks for your feedback, I’ve started to work also on the calibration, using a quite simple model that Mindfull suggested in a comment.
Great! Calibrating your printer is essential to printer performance and accuracy.
