Questions tagged [dimensional-accuracy]
The dimensional-accuracy tag has no summary.
24 questions
1 vote
0 answers
71 views
Why are the first half of prints stretched over the Z-axis?
After my brand new printer had been printing fine for about a month, suddenly, prints started to come out stretched. Originally, it happened with a table tennis ball that had its bottom slightly "...
0 votes
0 answers
61 views
Ender 3 not printing full bed
I'm trying to print on an Ender 3 a piece 21.1 cm wide, but it gets shrunk at around 20.8 cm; I'm using no brim or skirt, and I know the printer can print larger than that because in the G-code there ...
- 115
3 votes
0 answers
2k views
Creality K1C printing holes as ovals not circles
I've had five Creality K1C CoreXY 3D printers for about four months. Recently, one of them started having issues where the printed holes aren't coming out as circles and the parts aren't accurate. I'm ...
- 31
3 votes
1 answer
102 views
What scale of accuracy in measurement tools is required to verify a FFF item's specs based on the technology properties?
Measurements in machining often are done to an accuracy of "thou" which is thousands of an inch, or about 0.0254 mm. The measurement equipment for such is usually to an accuracy of tens or ...
- 22.8k
2 votes
0 answers
71 views
Can Cura apply multiple Z-offsets across the bed to "flatten" the print area?
We have a Tronxy X5SA 400 Pro which uses a TR sensor to "auto-level" the printing bed. It samples 16 positions across the bed (4 x 4) and provides a +/- level from its initial measurement. ...
- 121
1 vote
2 answers
2k views
Cylinders have an inconsistent diameter
I'm using the new Elegoo Neptune 4 Pro printer. I have the issue with both Cura and PrusaSlicer alike (I'm a Cura user). The issue is simple, instead of printing a perfect circle, the final print will ...
- 121
-3 votes
1 answer
167 views
Best materials for printing mountains
Can you suggest me some good material choices for printing some mountains models for educational and fun purposes? My goal is to mantain the best accuracy without spending too much, I have many models ...
- 97
2 votes
2 answers
760 views
Under-extrusion halfway into print - Dremel 3D45 -PETG
NEW UPDATE BELOW I am having trouble finding the cause for this under-extrusion at start/end of each layer. Something changes halfway into the print creating a visible seam at some specific layer ...
- 121
4 votes
2 answers
31k views
Print limitations with 0.4 mm nozzle
Is it possible to 3D print multiple 0.1 mm high layers with a 0.4 mm diameter nozzle in FDM while ensuring fidelity to the set layer height? The raster width is set at 0.4 mm and I am not touching ...
- 191
1 vote
0 answers
148 views
What causes inconsistency of sizes?
I printed this hook that must have 2.8 mm thickness of all walls: But actual sizes differs: And I think this is a reason why the 3.0 mm wall has a gap. Printed with Monoprice Select Mini v2, nozzle ...
- 111
3 votes
3 answers
573 views
Need accurate 90º angle with respect to the table
I have a Tevo Flash. Normally, I don't care about perpendicularity with respect to the table. But now I have a 5" disc on a ball bearing, held by a 3D printed tube with a flat bottom. If the tube'...
- 197
3 votes
2 answers
503 views
Are Fusion 360 drawings sufficient to design and enforce tolerance in a hole of a solid?
I uploaded a 3D object for this project to Fusion 360 and printed it out straightforward: Yet its middle hole is too small for the stepper motor (Nema 17 Stepper-M) I am using so I wanted to increase ...
3 votes
0 answers
310 views
Wouldn't a higher flowrate for 2nd outer wall increase the print quality?
I mostly print mechanical parts and thus need dimensional accuracy. When calibrating my printer I stumbled over the fact, that some people calibrate flowrate with single wall prints which would give ...
1 vote
1 answer
6k views
Incorrect inner dimensions of 3D prints with Ender 3
I have problem with my Ender 3. Whenever I print, I have proper outer dimensions (accuracy usually better than 0.1 mm, sometimes a bit worse), but every hole, pit or any inside dimension is inaccurate ...
- 11
0 votes
2 answers
404 views
Measuring Z positioning accuracy
I'm looking for a methodology to easily measure/evaluate Z positioning accuracy, using equipment on hand or easily obtainable such as a high-precision digital caliper. In particular I want to be able ...
