6
votes
Print limitations with 0.4 mm nozzle
Yes, absolutely. I believe the original sample file that came with the Ender 3 (0.4 mm nozzle) was sliced for 0.1 mm layer height. As long as your printer can get decently precise Z positioning at 0.1 ...
5
votes
Accepted
Need accurate 90º angle with respect to the table
In answer to (doesn't have to the issue of the OP, but as a reaction for other readers):
Note: this has nothing to do with bed leveling. The bed is level, the printer has a BLTouch.
Having a BLTouch ...
- 37.1k
5
votes
What clearance should I leave between parts that are supposed to fit together perfectly when using a .6mm diameter nozzle?
First, find or make a tolerance checking test print. This basically just involves a few cylinders with diameters something like 0.1, 0.15, 0.2, 0.25, 0.3, ... mm smaller than a cylindrical hole, and ...
5
votes
Accepted
How important is the dimensional accuracy of filament relative to the detail of a print?
Dimensional accuracy is not as important as dimensional uniformity. I can print with undersized (or oversized) filament, adjusting the flow appropriately, provided the filament has a consistent ...
- 2,440
4
votes
Low Accuracy while perfect travel movement
You shouldn't calibrate the steps/mm for the X, Y, and Z axes. Just use the default settings which are based on the theoretical values for the given belts/leadscrews/threaded rods.
The mistake is in ...
4
votes
Raised lips on sharp vertical corners
If the amount of time spent by the head near the corner is significantly longer than what's spent per unit time elsewhere, you will get more extrusion at the corners and thus this effect. High print ...
3
votes
Print limitations with 0.4 mm nozzle
The general consensus for nozzle diameter versus layer height is to limit the layer thickness to eighty percent of the nozzle diameter. For a 0.4 mm nozzle, one usually limits the layer to 0.3 mm. The ...
- 12k
3
votes
Under-extrusion halfway into print - Dremel 3D45 -PETG
That's not under extrusion
That is the seam, and technically it is over extruding around it. You will find that if you turn the item, you have such a spot on every layer, actually with an inner and ...
- 22.5k
3
votes
How important is the dimensional accuracy of filament relative to the detail of a print?
Put it simply: they say 1.75 mm with a ± error of 0.05 mm. Which means your flow may vary ±2.9 % while you are printing creating blobs and such.
The smaller the ...
- 31
3
votes
Accepted
Object's height not a multiple of layer height
Slicers will round off to the next nearest layer, so 20.2 mm in your case. However, you can get to 20.1 mm if you use a 0.3 mm first layer.
- 37.1k
2
votes
Do Cura's self-crossing infill patterns account for excess material from self-crossing?
With most filaments you don't need to do anything special to account for overfill caused by these crossing points. When the nozzle extrudes the second direction, it pushes the lines laid by the first ...
- 947
2
votes
Measuring Z positioning accuracy
In the world of hobbyist milling machines, a DRO accessory is extremely valuable for improving work flow and accuracy of project builds. The Digital Read Out devices run the gamut from affordable to ...
- 12k
2
votes
Are Fusion 360 drawings sufficient to design and enforce tolerance in a hole of a solid?
Besides offsetting the clearances you want into models, you can and should also calibrate your printer to compensate for included holes - because often inner holes are solved to be smaller than ...
- 22.5k
2
votes
Under-extrusion halfway into print - Dremel 3D45 -PETG
"Prime Amount" sounds like "extra prime on unretract", which necessarily deposits a blob of extra material at the location of unretract, including the Z seam. Setting this to zero ...
1
vote
Accepted
Cylinders have an inconsistent diameter
It's all but confirmed that the printer was defective. I got a new printer and loaded up the sample G-code it comes with, but the bed's belt snapped 10 minutes into the print (it was only finger-tight)...
- 121
1
vote
Cylinders have an inconsistent diameter
Take a builder/carpenter/machinist square to your machine frame and double check the bed rail (y axis) is perpendicular to the gantry (x axis). The only way I can think of for this sort of distortion ...
- 372
1
vote
Are Fusion 360 drawings sufficient to design and enforce tolerance in a hole of a solid?
This seems like a tolerance press fit problem and similar to what you will find if you try the same using normal machining operations on a lathe or milling machine.
I print 3 mm clearance fit holes on ...
- 272
1
vote
Incorrect inner dimensions of 3D prints with Ender 3
There are 3 effects at work, and you misread your micrometer: the measurement is 19.35 in the picture.
You have a little lip
There's a little lip at the top and bottom of the print. You'd need to ...
- 22.5k
1
vote
Accepted
Ender 3 Y-Axis Stretched (I don't believe it's layer shifting)
If an axis doesn't print the sizes you command it there are basically 2 options causing this.
The printer is incorrectly configured,
The printer has an hardware issue.
To find out which of the 2 is ...
- 37.1k
1
vote
Print of fine hole seems to twist
This looks like a shift rather than a twist.
Looking closely at the "+" opening, it doesn't look as much twisted as it looks as if the top and bottom halves are sheared, with the top half shifted ...
- 4,591
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