Questions tagged [print-quality]

Questions about troubleshooting and achieving certain print-quality. Please include photos of your problem, and also describe what the limits of your 'good' prints are.

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14
votes
1answer
4k views

How does one use a heat tower?

I've been asking around on how to choose the right temperature for a given filament. I noticed that with two different brands of pla I have to print at different temperatures, and the manufacturer ...
5
votes
3answers
1k views

Avoiding stringing with flexible filament

I have some flexible PLA filament (https://www.amazon.com/dp/B00VKSSA4E/, presumably a mix of PLA with some platicizer) that's supposed to be easy to print with settings similar to regular PLA. I've ...
9
votes
2answers
15k views

Any fix for PLA prints getting more brittle over time?

I've been printing small quantities from a PLA filament spool on a Craftbot printer for about two months now. Recently the printed objects have been coming out very brittle. Some structures that ...
9
votes
3answers
11k views

What causes ripples on part of first layer?

I'm having issues with ripples on the first layer of big flat prints. The initial corner of a big flat print is fine, but then ripples begin to form as shown in the screenshot. I'm just a newbie, so ...
8
votes
6answers
7k views

First 3 mm prints poorly, then fine after that

I have an Ender 3 that I have been pretty happy with so far, however it recently started an odd behavior and I can't figure out what's causing it. What happens is that the first ~3 mm of the ...
9
votes
4answers
825 views

Why is my print displacing along the y-axis by 2-3 cm?

I am encountering a problem with this ID3 printer using ABS -- at some point during the print the print head displaces on the y-axis by 2-3 centimeters. I cannot pinpoint how or why it is doing this. ...
10
votes
2answers
8k views

How can I improve the overhang angles my printer can successfully print?

Using an FDM printer and PLA or ABS, without adding support material. What modifications can I make to improve how steep an overhang my printer can print before it starts having problems? The obvious ...
7
votes
1answer
2k views

How to make moving parts not stick together?

I am new to the 3D printing world and I would appreciate if someone can give me advice on how to 3D print moving parts without them sticking together. I recently 3D printed the predator pliers from ...
7
votes
2answers
752 views

Why does my domed print have a thin shell?

I am making a "fun button", with a dome-shaped top. The vertical sides, top center, and raised lettering seem fine, but the more sloped outer parts of the dome are very thin, with some gaps and the ...
7
votes
3answers
2k views

I am experiencing some severe under extrusion

I did calibrate the extruder to extrude exactly 50/100 mm and it is fine. I have replaced the old (prehistorical) extruder that was giving me the problem with a new one. The issue does not go away. It ...
7
votes
2answers
2k views

Why does my part-cooling fan cause stringing?

Really strange observation with my MP Select Mini V2 printing PLA. I've printed a dual-fan shroud so I can have a dedicated part-cooling fan. I've noticed that when I turn it on, the extruder starts ...
21
votes
2answers
1k views

Mushy small top layers?

I just added a fan to my printer because very small layers seem to come out very badly. For example, the 5mm PLA cube that's the top level of the test shape shown below. Watching closely, I can see ...
12
votes
2answers
2k views

Second layer: gaps, poor adhesion - why?

I'm seeing the following pattern on my Prusa clone: The first layer prints OK, layer adhesion to the bed is good. The second layer shows the weird gaps. On larger pieces, or with an increased feed ...
4
votes
4answers
5k views

Difficult to remove support material

I'm having a lot of difficulty removing support material without damaging the print. Are there any tips/tricks to doing this or is it just a case of sanding, cutting, chopping and then cleaning it up ...
8
votes
4answers
14k views

What are the ideal print conditions for polypropylene?

I'm having a lot of trouble printing polypropylene right now, and I think it may have to do with the conditions. I'm using a very thin coat of ABS on the base plate (just as you would do when printing ...
14
votes
1answer
3k views

How to improve face that are printed on support?

Is there anything I can do to improve the bottom side of surfaces that are printed on support? I always try to rotate the model so that surfaces that need to look nice are on the sides or top, and, ...
11
votes
2answers
15k views

How to choose an extrusion temperature?

From what I've been able to find out, online sources recommend around 205ºC for PLA and around 240ºC for ABS. But these are only guidelines, of course. Optimal printing temperature can be different ...
10
votes
1answer
555 views

What parameters affect cylinder regularity?

I'm printing cylindrical pins for a spool holder, but all my pins have irregularities on the external surface of the cylinders (see photo for partially printed pin with irregularities). It's hard to ...
7
votes
3answers
245 views

3D printed mold techniques for long and short term usage

3D printing can be used to make injection molds of unimaginable complexity but which kind of 3D printing process is suitable when? Suppose that a part is to be made using injection molding in large ...
6
votes
3answers
463 views

What prints can I do to test/calibrate my printer for precision?

I specifically want to test calibration tolerances precision accuracy I'm having trouble with Print in Place models and I'm trying to find out if there's something I can do to improve my print ...
4
votes
1answer
1k views

What do you call this effect in 3D printing and how can I remove it?

I have a Bowden extruder in my printer setup. Everything works great except this effect which must be related with retraction and is generated on Z layer change: The model itself, is printed in ...
9
votes
1answer
1k views

How thin can my extrusion be from a 1.2mm extruder?

I always assumed that the smallest diameter that you could extrude was equal to the diameter of the extruder tip itself. Recently I heard that you can actually extrude a line that's as little as half ...
8
votes
1answer
5k views

First (bottom) layer has gaps

First off - I'm rather new to this and I might be on the wrong track altogether... I'm printing PLA using a simple DIY XYZ printer with a direct-driven extruder, 0.3 mm nozzle, 0.2 mm layer heights, ...
7
votes
1answer
471 views

Is there any reason *not* to use a steel nozzle for printing all materials?

I know that for printing some materials like the carbon-fiber filled PLA it's recommenced to use a steel nozzle since it'll wear-out a standard brass nozzle quickly. Is there any reason to prefer ...
6
votes
4answers
4k views

What is causing the walls of my prints to separate?

I have been having an issue with certain portions of the walls of certain prints becoming separated from the rest of the model. It happens with smooth vertical edges. Specifically, this model, ID ...
5
votes
2answers
320 views

How to avoid collisions with already printed objects?

When printing several objects, I recently encountered a problem that arises when the structure in itself is relatively thin or the support towers have a small surface: the printhead would in motion ...
5
votes
2answers
1k views

print quality: z wobble issue

Yesterday i replaced the z axis of my diy printer. Now i have some strange waves on the side of my prints. Are the threaded rods bent or could that be a vibration issue? Or is the coupler too stiff?
5
votes
2answers
4k views

Sudden underextrusion on Ender3

I have printed a couple weeks perfectly fine with my Ender 3. Two weeks ago I changed the firmware but the settings were all fine and resulted in good prints. Now, suddenly during a print the ...
4
votes
3answers
294 views

Print came out like a wafer

I'm not sure how else to describe it. There's probably a name for this but I just don't know it. But the bottom few layers came out great, but the rest came out kind of like a triscuit. Below are pics ...
4
votes
1answer
93 views

Why does my model stop printing at the same spot?

I have a Monoprice Maker Select v2 printer which has a printing height of 7". I tried to print this trophy. The first time I printed, it stopped about 3/4 of the way (about 5.5"). I use Ultimaker ...
4
votes
2answers
343 views

Printing starts well but then it breaks down, Anet A8

I'm printing a cylindrical piece but at any moment it breaks down. I tried it two times, both have break down in different place. I'm using a 1.75 mm PLA filament in my Anet A8. I'm using Cura 2....
4
votes
2answers
12k views

What causes “ghosting”?

I am printing some minion chess pieces for my teacher at school and on every model I have found something called "ghosting", or at least I heard that is what it is called. For example there is a strap ...
3
votes
2answers
318 views

Inconsistent inner/outer dimensions

Using CuraEngine with my Ender 3, I'm getting what I'd call inconsistent inner and outer dimensions - for example, a nominally 3 mm peg is significantly larger than a 3 mm hole, and it takes ...
3
votes
1answer
244 views

Is there any setting that could allow me to print this overhang without support?

I've been asked to print a set of this: https://www.thingiverse.com/thing:2200026 I used Slicer with my default settings for my FLSun printer which includes support and 0.2mm layer height and that ...
2
votes
1answer
270 views

Calibration improvement of the Prusa i3

I recently got myself a Prusa i3, that I needed to assemble and adjust myself. As expected, the first prints was of quite poor quality. After better adjustment, I improved a bit the print, but I am ...
1
vote
1answer
50 views

Empty patches with a very viscous resin

I have a Mars-like 3D printer, which so far worked very well with typical resins. Then I decided to print a mechanical part with Siraya Blu. I followed their recomendations of a "heavy" support, which ...
1
vote
5answers
618 views

3DBenchy's bow prints out of alignment

I'm new to 3D printing, but I've solved all of my problems except for this rough surface shown in the image of a Benchy print: Any suggestions are appreciated. Printer (new): Raptor 2 (400x400x700&...
0
votes
2answers
95 views

PLA Issue printing first 3 mm with Ender 3 Pro

I´ve tried tunning printer settings with different Nozzle(190-210 ºC)/ Bed(0-60 ºC) Temperatures, Fan Speeds (0-100 %), Cura and Slicer adjustemens but nothing worked. I still get the ...