Questions tagged [3d-models]

Use this tag for questions about 3D models.

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When 3D printing a hollow box, what is the best course of action?

If I need to 3D print a hollow box that can not have any light permeating into the box, what would be the best course of action? Should I 3D print the hollow box as a whole or print out the 6 sides ...
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1answer
78 views

Printing and slicing big pieces with Elegoo Mars (Pro)

I'm pretty new in the 3D printing world, and there are some doubts that have come my way and I've not been able to find anywhere. Usually, I'm going to try to print pieces bigger than the bed of my ...
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2answers
45 views

Vertical vs Horizontal shapes printing

first time here. I recently bought an Anycubic Mega S and I'm venturing in the 3D world. Lots to learn for sure. I have printed a few items so far and all went pretty well. My question is about ...
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2answers
90 views

Is there a more efficient methods of removing support in a model?

Is there a way of reducing the amount and strength of Model support when slicing in Cura? Cleaning a model with large amounts of support can consume large amounts of time.
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1answer
46 views

Unable to Determine Proper Print Scale of STL model

I am new to 3D printing and have a Monoprice MP Select Mini 3D Printer V2. I wanted to be able to 3D-print this VR Adapter from Thingiverse. Before downloading the Cura software, I tried opening the ...
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1answer
62 views

Looking for CAD files of basic crystal structures

I'm looking for basic models of crystal chemical structures. The most basic example would be a cube, it gets harder though as I next need polyhedrons with one of three angles < 90°, then two, etc. ...
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1answer
25 views

Eliminating unwanted internal surfaces

One of the biggest challenges with 3D-drawings is internal surfaces unintentionally formed that cause slicing not to work properly. This is using SketchUp Pro, slicing with Slic3r, and printing with a ...
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1answer
23 views

How to create a support structure in tinkercad?

I've created a case for my Raspberry Pi in Tinkercad and would like to 3d print it. However, I don't know how to create supports! I tried looking it up, but I got a model that I don't know how to ...
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2answers
78 views

How do I compress 3D files

I'm trying to compress different 3D files, but find it difficult to find the right software to compress the file. What are the most suitable 3D file compressors to compress 3D files like STL, OBJ and ...
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1answer
46 views

Face where there should be no face

When importing this .stl file in Creality Slicer another face appears in the middle when viewed in layered view. This face is not visible in my 3d modeling software Blender. I tried cleaning up the ...
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2answers
93 views

My 3D model is printing with missing parts when sliced in Ultimaker Cura

I have been working hard the last year on the model below. I am new to everything 3D that is modeling and especially 3D printing. I have however successfully concluded quite a good number of 3D prints ...
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1answer
258 views

Prusa MK3S 0.8 mm nozzle layers separating

I am currently printing a simple cup out of PLA (I will later anneal it). My nozzle is 0.8 mm and I'm using a 0.4 mm layer height. Unfortunately, the layers keep separating. They don't ...
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1answer
61 views

How can I include seperate Slicing Parameters in my 3mf file

I am trying to write a program that edits a 3mf file by defines different slicing parameters for different stls that I have previously merged into my 3mf file, but I am a little bit confused about the ...
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1answer
48 views

Sketchup designed “Block with hole” printed solid in Cura

When I export my SketchUp STL model to Cura it looks good in solid mode but in the layers mode some holes are filled up. To find the reason why, I broke down the original model by deleting the parts ...
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0answers
47 views

Prusa MK3S Nylon&ABS print failures

I'm using Prusa i3 MK3S and every time I want to create a durable, impact resistant part, I use ABS/Nylon. The problem is, however, that when I print something small (of less than 1 cm width for ...
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1answer
62 views

Pile up objects and attach them for mass 3D printing

I'm completely new to 3D-printing. Because of Covid-19, my dad got a Dagoma Magis 3D printer and we are printing protective visors for hospital workers here in France. We have been given a 3D model ...
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2answers
91 views

Can model used for 3D printing be later used for mold mass production?

I am working on a project that requires an enclosure that I am thinking to prototype using a 3D printer (which is pretty easy and overall awesome). My question is simply whether this same model can ...
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2answers
44 views

Is there a spiral lid mechanism

I want to put a spiral lid on top of a container. When the lid opens, then the spiral mechanism will rotate into the container. Is there a name for this mechanism? If not, would something like this be ...
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1answer
108 views

Can this part be 3D printed?

I have an old air conditioner and most of the vent flaps/louvres are missing. I've modelled it in Solidworks, but can it be printed? Are the tips too small for 3D printers? It's about 14 cm long ...
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1answer
45 views

Meshlab creates weird bubbles when using poisson surface reconstruction

my task is to create a watertight surface out of a point-cloud (It's the model of a dam). For this I'm using MeshLab. First thing I did was importing the .ply-file into Meshlab and normalize it. ...
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1answer
107 views

3d scan matting spray

I want to scan a few ceramic items that are shiny and have multiple colors and found that using an artec 3d Spider that doesn't really work due to the shininess and thus want to use a matting spray or ...
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3answers
228 views

Very low strength of HIPS prints - Why?

I'm using a Prusa i3 MK3S printer. After ~8 months of printing PLA, PET-G, ABS I decided to buy some HIPS and print something with it. I cannot print >1 filaments at once, so I'm not using it as a ...
2
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1answer
77 views

Does having more curvier corners help warping more then smaller curves

I was experimenting with building an enclosure using fusion 360. I was wondering if a part with rounded corners of a larger radius would warp less than smaller ones? Also, any recommendation on ...
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0answers
62 views

Print copy of real life object, starting with .mpo file or files

I want to make a 3D printed copy of a real object. I have access to a Nintendo 3DS which is capable of making 3D .mpo files. Is there a straight-forward method to convert these into a 3D printable ...
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1answer
151 views

Cura 4.4 missing object parts

I have this image in STL But it seems cura skipped the lower panel entirely when slicing the STL. The base is thick, as you can see here, but it is still missing in Preview, and Cura seems to ...
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0answers
325 views

CR10S Pro Pausing the print at a certain layer height

Im printing on a CR10S Pro and I can't find a way to pause the print at a certain height, to insert magnets into my print. Is there a way I can do this?
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1answer
409 views

Efficient way to create a “mold” of a solid object in Meshmixer?

Currently I have a model of a fingertip finished in my project, however, I would like to create some sort of "cap" that if printed would fit on top of that finger. Is there a good way to achieve this ...
3
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1answer
58 views

Convert ball-stick model to STL from the command line

I regularly have 3D models that consist of a Boolean union of balls and cylinders (molecule models, star maps, mathematical designs), that I then want to convert to a STL model for printing at ...
4
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1answer
130 views

Delete only invisible parts of faces

I have an STL made out of triangular faces that intersect themselves to create very complicated patterns. It also has a very messy internal structure. I'd like to remove the parts of the faces that ...
2
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1answer
66 views

How to make symmetric Low-Poly objects in meshmixer?

I've made low-poly objects using Reduce function in Meshmixer. My objects are symmetric and I want to keep the symmetry in the low-poly because it's more beautiful, But the software doesn't necessary ...
4
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4answers
3k views

Combining multiple STL files

I have a collection of STL files, each containing a separate moving part of an object I want to print. (Imagine a set of gears, or similar, that prints as a single object with multiple moving parts.) ...
2
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1answer
95 views

How to extract 3D information from a 3D model for calibration?

I made two "OBJ" 3D models of myself using Sense 2 scanner and using photogrammetry with Meshroom. I would like to extract some information about myself to be able to scale the model properly and to ...
2
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1answer
62 views

Slicer is adding additional floor bed

I'm trying to print an architectural model of a house with 2 floors and a room on the roof. It was designed in SketchUp by a friend. I removed inner walls and floors to print it upside down to get ...
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3answers
250 views

Is it possible extrude faces along normals individually in OpenSCAD?

For the geometry I am making, I want to extrude each face individually along its normal. This is a standard procedure in 3D modeling software like Blender; see Example 3 here. Is this possible in ...
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3answers
4k views

Export STL as ASCII or binary?

When go to export a model using Fusion 360 or Meshmixer, I see that there are two options. Could the final model be affected by the format chosen at the time of saving?
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3answers
149 views

Can I order a 3D print of a 1 ml transparent container?

I'm trying to make a water insulated 1 cm3 (1 ml) transparent container and I bought some plexiglass, I cut and glued some pieces together but it looks really crappy and barely holds the ...
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2answers
242 views

Does acid dissolve PETG 3D prints?

I want to print a lemon squeezer and I would prefer to use PET-G. I don't know if it is safe to use, because lemons contain lots of citric acid. Does it dissolve PETG? I haven't found an answer ...
2
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1answer
361 views

Why do my prints have such a rough surface? (Taz Lulzbot Pro)

Model: Taz Lulzbot Pro Things we tried to get it to work: Tried both ABS and PLA Hatchbox brand Uploaded new set of settings from another printer of the same brand that works using the hatchbox. ...
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0answers
34 views

3D printed object can't print straight upward [duplicate]

I have a weird problem, my object base starts good and then as the object goes to the next layers it is off centered. I have a picture to better explain.
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1answer
249 views

Getting started with converted STL to DXF [closed]

I converted the STL file through an online converter https://www.cadforum.cz/catalog_en/stl2dwg.asp (I work in the program autocad 2017) Now I open the resulting DXF and I don’t know how to work with ...
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3answers
302 views

Creating “pie slice” in OpenSCAD?

When making a cylinder, sometimes I need to only take a pie slice. I'm currently using this neat trick to make pie slices for angles under 90 degrees. However, I have need of a few angles over 90 but ...
3
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1answer
233 views

PET-G under-extrusion after changing the nozzle to a 1.2 mm d. one (Prusa i3 mk3s and PrusaSlicer v2.0)

PET-G is the main filament I use. I can achieve high quality of my prints with my Prusa i3 mk3s printer. Recently however, I've recently changed my nozzle from the default 0.4mm to the 1.2mm. I ...
4
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2answers
112 views

Printing non-commercial model to make money

If a customer sends me a non-commercial 3D model to print, am I allowed to charge money for the 3D printing process? I understand I cannot charge anything for the model nor offer it as a part of my ...
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2answers
4k views

Is there a way to print with ABS without enclosure?

ABS is a very strong material, but it also has some downsides. One of them, which is the necessity of having a printer with enclosure, completely discouraged me from using it, as it would be a waste ...
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0answers
78 views

Importing Surface Colours along with .obj files in Fusion 360

I am currently involved in drone mapping and photogrammetry. I have taken some aerial images of a site from a drone, and have created a 3D map using DroneDeploy. I exported the 3D model from ...
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4answers
5k views

Do 3D printers really reach 50 micron (0.05 mm) accuracy?

I've always been wondering about the actual accuracy of 3D printing devices. When looking for the perfect machine to buy, I looked at the speed, price, filaments supported etc, but also accuracy. I ...
4
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2answers
943 views

Prusa i3 MK3S 3D printer PETG printing problems

I am using a new Prusa i3 MK3S 3D printer kit. I print lots of things using PLA and PETG. After a week of great performance I noticed that when printing some objects with PETG filament I often ...
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3answers
402 views

How precise do models need to be for 3D printing?

I'm not talking about making something that's outright disproportionate of course. I've been working in Blender and I've use Absolute grid Snap to snap my vertices to the grid. The problem is that it (...
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1answer
51 views

Rule of thumb for small type

Is there a good rule of thumb for small type on 3d printed pieces? Minimum type size? Good typeface for accurate reproduction?
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2answers
2k views

Why is the printed object smaller than original model?

I am printing a small cylinder, but when the object is finished, it's smaller than the measures I used when create the model. I used thincerkad to make a simple model, the measures are: width: 90 mm ...

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