Questions tagged [3d-models]

Use this tag for questions about 3D models.

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1 answer
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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. ...
0 votes
0 answers
37 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.
1 vote
1 answer
646 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 ...
5 votes
3 answers
1k 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 ...
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3 votes
1 answer
434 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 ...
  • 525
4 votes
2 answers
370 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 ...
5 votes
2 answers
12k 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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1 vote
0 answers
135 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 ...
15 votes
4 answers
8k 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 ...
  • 525
4 votes
2 answers
2k 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 ...
  • 525
2 votes
3 answers
407 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 (...
4 votes
1 answer
95 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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6 votes
2 answers
6k 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 ...
0 votes
2 answers
1k views

Which 3D filament is 100% (or close to being so) food safe and non toxic? [duplicate]

I've recently bought myself a preassembled Prusa i3 MK3S printed and made my first projects. One of them was making a cup with my name on it. I want to use it to drink tea, water etc. I know, however, ...
  • 525
6 votes
2 answers
5k views

Should I include fillets on my 3d printed parts?

A fillet is like a rounded corner but on the inside of the corner. Does it make a difference (structurally) to use fillets on a 3d printed part?
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3 votes
2 answers
206 views

How do I concave an image to create a 3D file for use in a 3D printer?

How can I print an embossed image in a concaved shape? Like a big saucer. I will use this an a mold for a project. So far I've found lots of software with huge spread of features. It's sort of ...
1 vote
1 answer
94 views

3D printer and design software for creating propellers for a toy airplane/drone [closed]

I would like to begin designing and 3D printing propellers for both a toy airplane and drone that I own. I want to do this for experimental purposes. I have never used a 3D printer nor have I used ...
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4 votes
3 answers
1k views

Set the overhang parameter in Blender 3D printing tool box

I'm working on a cube in Blender. I just deleted one of the faces (the top face) of the cube and added solidify to avoid non manifold edges. In this case, when I check the design it shows that the ...
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2 votes
0 answers
221 views

3D Printing bevel gears [closed]

This is not entirely a 3D printing question, but closely related since I want to print parts for a prototype. The problem : I need to create a mechanism with 2 parallel shafts, at some distance apart,...
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0 votes
1 answer
368 views

How to effectively eliminate stringing in 3D print

I'm having this stringing problem that happens when the machine moves and when it's not supposed to print that I still haven't effectively solved. I will try exemplify with the following image. We ...
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2 votes
2 answers
171 views

Can a model change size when using a different filament type?

I printed a case for my phone, a Motorola G4 Plus. I found the model of the casing on Thingiverse I just downloaded the model, used Meshmixer to check for issues, after that, opened Simplify3d and ...
4 votes
2 answers
298 views

Is it possible to know which is the correct temperature range and speed for any model?

Trying to print a 3D model for my mobile phone, but I see that when printing the sides, being thin, increases the retraction and the recoil seems a little abrupt and makes a coarse sound. I would ...
5 votes
2 answers
172 views

Which software do I need to start print something?

I'm still new to 3D printing and I want to print something. I expect that I'll mess it up since I find nothing to adjust it but it is now laying around for 4 months and I'm sick of it. So my question ...
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1 vote
1 answer
87 views

Print initial layer only on outside of print

I am using Ultimaker Cura to print what are essentially cookie cutters - a thin wall that is a silhouette of the shape. I would like to have a broader surface for the top. In Ultimaker Cura, I set it ...
4 votes
2 answers
1k views

What is the correct process to make a correct resin casting for jewelry?

I have a 3D printer and I have printed some models with castable resin. When I burn one of these models in the oven and then do the metal casting, the surface of the metal piece is not smooth. I did ...
1 vote
0 answers
35 views

Slic3r - how to combine specific perl code with Slic3r SupportMaterial.pm? [closed]

I've got a specific perl support tree script that I would like to integrate into Slic3r. Does anyone know how to do that?
1 vote
1 answer
395 views

how to split a 40" model into 5 parts to print seperate

I currently have a model in fusion 360 of cylinders with the largest being 40" diameter in a specific pattern as seen below. My printer is a Ender-3x with the build plate dimensions of 8.7" x 8.7" x 9....
1 vote
0 answers
56 views

My 3D prints don't end up the same as the model [closed]

I'm trying to print a very simple item that I created in blender: However, the print always ends up being a simple "plane" with some scribbely stuff on top
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3 votes
2 answers
225 views

How to design gears

I want to create a micromouse project for fun that use 2 20 mm x 8.5 mm (0.8 mm shaft) motors. I have my own PCB as base. I want its built-in gears will be attached to two 3D-...
0 votes
1 answer
273 views

Font suitable for 3D printing [closed]

I am looking for a font, which is connected and has a good line width (so that it can be 3D printed). Something like in the image below: Something like in the image above would be great, but I don't ...
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1 vote
2 answers
134 views

How to build a CT scan into a printable 3D model?

I have a set of 2D pictures from a CT scan. How can I convert them into a 3D model for 3D printing? An example looks like this:
3 votes
1 answer
1k views

How can I decrease the thickness of a wall in an STL file?

There seem to be a lot of search results answering the question of how to increase wall thickness, but how can I decrease wall thickness? I have an STL model of a mechanical keyboard key where the ...
4 votes
1 answer
94 views

I want to print an image of a network in 3D — what's the best way to convert it?

Suppose I have an image like this below that I want to print in 3D. What would be the best format to convert it in?
4 votes
3 answers
187 views

How can I get a 3D model from a bunch of 2D photos?

I am a physics graduate student and I want to create some 3D models for my crystal samples. We have an X-ray diffractometer in our lab. It comes with a goniometer inside it, so basically I can take as ...
2 votes
2 answers
446 views

Weird surface thing

I have a 3D printer at home, the Colido Compact, and for some reason when I 3D print big flat surfaces a really weird thing happens. I'm using some PLA from Colido too I think It almost seems as if ...
1 vote
0 answers
71 views

Steps to setup a new 3D Printer

I hope it doesn't get closed since my question is widely open: I got recently a Geeetech Prusa i3 Pro B as a DIY kit, the assembly took a lot of time since the package did not include a building ...
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2 votes
1 answer
73 views

Can I use a 2D photo to get a 3D printing model? [closed]

Can I use a 2D photo to get a 3D printing model that gives a good result?
3 votes
2 answers
970 views

Problems with STL model in Ultimaker Cura

I want to print a piece of fruit modeled in Blender. It is an STL file. Please note that I am an absolute beginner at 3D printing models. What do these red zones mean? What is wrong about the mesh ...
2 votes
2 answers
457 views

Hollow wing for rc plane

I am trying to print a wing for a rc plane with my 3D printer. In order to make the wing as light as possible I need to hollow it (and afterwards put some stable structure there). I've tried the ...
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4 votes
0 answers
63 views

How to print an item the size and thickness of a laptop display? [duplicate]

I want to print a case for a laptop display that I plan to turn into a second display. I have the Ender 3 printer, with a print area smaller than the case's size. ...
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-1 votes
3 answers
1k views

What is the best way to print a coin with depth map? [closed]

If I have an image like the one attached, what’s the best way to create an accurate depth map of it? I have photoshop CC and 3ds Max, but I don’t know what settings work best with Slic3r. There is a ...
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5 votes
3 answers
870 views

Strange walls/faces when importing self made model from Blender to Cura 3

I wanted to create a coin stacking device similar to this one: https://www.thingiverse.com/thing:499177 But I wanted to only 3 coins, 5c, 2c, and 1c. Unfortunately the STL came in pretty messy after ...
3 votes
2 answers
1k views

Using multiple infill types within one model [duplicate]

When modelling for 3D printing, can I distinguish somehow the type of infill in various areas of the model? Say there may be some areas in the model where I want 100% infill (maximum strength) but ...
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1 vote
1 answer
50 views

Resources for making 3d scans of electrically conductive materials?

I would like to make a 3d scanner for accurately modeling very small metal parts. I figured I might be able to take advantage of the fact that metal conducts electricity, and avoid using light. This ...
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5 votes
3 answers
2k views

Route to transform 2d image (depth map) into a curved bracelet (and STL file)?

I've got a bracelet concept that I've sketched up as a flat design. I'm trying to found a route by which I can extrude this into a 3d object (depth map?), curve it into a bracelet, then ultimately ...
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1 vote
2 answers
112 views

Recommend simple software to create calibration print for table leveling [closed]

I've just bought Anycubic i3 Mega printer and trying to level it. So far I've printed test object and 2 others but looks like there are problems with leveling. I want to make image of 5 small one ...
8 votes
3 answers
2k views

How to determine shell thickness for parts?

Let's say you're printing a container or some other object with no infill. What's a good rule of thumb for how thick to make the outside? I'm looking for something along the lines of millimeters thick ...
18 votes
8 answers
27k views

What kinds of gaps/tolerances should I use when designing pieces that fit together?

Let's say I'm modeling a simple box with a lid. Just as an example, we'll say the outer edge along the top of the box is 50mm x 50mm. With 3D modeling software, it's easy to build a lid for this box ...
7 votes
3 answers
10k views

Split/edit part in FreeCAD?

I'm trying to modify some parts on this thing. I'm kind of new to dealing with the modeling aspects of this. I am attempting to widen the part essentially 3mm. This would involve modifying the chain ...
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1 vote
1 answer
265 views

Why does MakerBot software shows holes in the wall of a 3d model?

I made a simple extrude on a sketch in Fusion 360: But what MakerBot software shows me in the preview is Can someone explain how to make it print a smooth wall? Mesh of the model also seems to be ...