Questions tagged [3d-design]

3D design (or modelling) is the process of creating a three dimensional digital representation of some object that, for instance, can be 3D printed.

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What is “Tolerance Stack up Analysis” mean? [closed]

Anybody can explain what this word "Tolerance Stack up Analysis" mean, I check the web, and they show some formula. Why did they use Stack up? Do we need to have a equipment to be able to analyze ...
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2answers
85 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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Is 3D printing useful for making everyday objects or is it more for special hobbies?

Have people been using 3D printing to genuinely create a number of needed objects in their homes, and if so, what? Or is 3D printing better for special niche interests like art projects, home ...
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38 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
31 views

creating support for a surface

I created an stl file of bathymetry using Matlab and the results can be seen in the two pictures below in Blender. The problem I have is that it is very thin with overhangs. I would like to add some ...
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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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2answers
251 views

Help needed to design 3D printer part

I am attempting to build a 3D printer using the Bear Upgrade for guidance. However, I want to modify some of the parts. I am basing the modified parts on the original designs. I would like to ...
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1answer
131 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 ...
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1answer
150 views

How can I convert STL files into PDF drawings?

Does anyone know of an easy and free way to convert my STL models to a PDF drawing for CAD and metal CNC machining? I've created some great designs that are all STL files and want to somehow send ...
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1answer
54 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 ...
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1answer
124 views

In Fusion360, how do I align components according to their a midplane?

In Fusion360, how do I align components according to their a midplane? I have 2 complex objects. They have no midpoint defined (is that even possible). How do I align them according to their mid ...
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2answers
95 views

Attach handle on a loose screw

The handle of a micro wave oven broke. I can't just order a replacement part because I can't even attach the new one. The problem is that the screw heads are somewhere on the interior side of the ...
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1answer
96 views

How can I become a certified Fusion 360 user?

I heard about the certification program from autodesk website. How can I prepare and write this certification exam as a student? I already started using fusion 360 about a month.
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174 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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229 views

How to decide print orientation?

Please Note: This question is not about the design. It's about deciding print orientation after the design. I have a small, but complex piece which I need to print. Here are two images of different ...
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1answer
97 views

Bevel gears 3D model

Goal : create a pair of bevel gears for 90 degrees angle axles. Context : the gears are designed with an OpenSCAD library (https://www.thingiverse.com/thing:1604369, function 'pfeilkegelradpaar'), ...
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3answers
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A single angle, single phone model windshield mount — a job for a 3D printer?

My end goal is getting high quality dash footage from a 6 month road trip I'm going on. From my research, very few dash cams support 4k 30fps filming, and the ones that do overwrite their own footage ...
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5answers
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3D Print Enclosure

Developing an electronic product for which I'll need an enclosure. It's about 50x30x20mm and should survive higher temperatures (50-60 degrees). Because of the low volume (under 500 required per year),...
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3answers
260 views

Problem in 3D printing of an empty model

I'm new to 3D printing. I modeled an empty bird in Blender (the stl file of model is presented). I tested the model in Blender (using 3D printing tool) and also the Netfabb software. They don't show ...
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4answers
4k 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 ...
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1answer
50 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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4answers
4k views

How to fix wall separation in 3D prints (gaps in between wall perimeters)?

The print is very solid except for the 4 walls. From the top, I can slide a paper down to the bottom. This is ONLY between the walls, the rest of the print is solid. The filament is PLA 1.75 mm. ...
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R3 Insights into industrial scale claims

Does anybody know anyone from the R3 team or have any insights into their scalability and reliability claims? The format and potential cost savings are appealing... We are looking for an ...
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1answer
79 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 ...
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3answers
108 views

Material for printing orthotics

I noticed foot arches are already digitized, but custom arch supports are usually expensive. PLA and ABS aren't the best material for printing arch supports, especially if they replace the shoe's ...
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1answer
71 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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1answer
147 views

How to create supports for the parts hanging above 45 degrees? [duplicate]

Do you have any specific process recommendations to achieve support for the parts hanging above 45 degrees, using open source software?
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173 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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3answers
115 views

Advice for 3D modeling peg for sprinkler dripper

I'm not really sure where to ask this question as I think it is a design question, but also a printing question. So if there is a better place to post, I'd be happy to harass someone else. I'm (re)...
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0answers
88 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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2answers
190 views

What is the correct way to export SVG in order to convert to STL?

I made a simple logo using Inkscape, after saving as an svg file, but when I export that file into Fusion 360 something strange happened. Multiple times I convert some images (png, svg) to svg file. ...
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2answers
84 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 ...
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69 views

Any video tutorial for 3D printing [closed]

I am new here and would like to work on a project to 3D print a precision prototype. What is the most affordable way to do it? How do I go about it?
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2answers
40 views

Cause of slicing artifacts layers not connecting diagonal errors

Sometimes my meshes turn out with artifacts Which can be seen in the bottom image. What is the cause? The first image shows my mesh which its generated from. I've tried multiple slicers. This tends to ...
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1answer
68 views

How do I decide what size my push-fit feature should be?

I'm designing a box and lid that will be FDM-printed. The lid push-fits onto the box. What kinds of gaps/tolerances should I use when designing pieces that fit together? has advice for designing the ...
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1answer
267 views

Can snap-fit connector be designed for 3D Printing?

I am new to 3D Printing. We currently have to design in process that I want to finish. The design consists of two parts (top and bottom), the top and bottom that need to snap fit into each other. The ...
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2answers
161 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-...
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1answer
75 views

Designing lenses

Recently, I did discover that it might be possible to print fully solid, air free and thus optical homogenous, even with PLA. How can I design a proper focusing lens (or rather: single sided lens ...
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2answers
85 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:
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1answer
149 views

How to print a voxel object?

I recently downloaded Magicavoxel to give this voxel thing a try, and I was curious if there was a way to turn the voxel files into a file for printing? Magicavoxel doesn't seem to offer a way to ...
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1answer
568 views

How could I print a large sphere-like object?

I have a STL file with a rather large roughly-spherical object. I'd like to 3D print it to be fairly large, and hollow inside. Since the printer I'd be using has a max size of (18–20 cm)^3, I'd have ...
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1answer
56 views

PVA support with small tolerances

I am at the moment designing some in place mechanical parts. Something like two cylinders that rotate with respect to each other. I need in my design some overhangs that cannot be printed and I was ...
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1answer
876 views

How to attach a metal bearing to a print [closed]

I have a bunch of ball bearings (608 2RS) that I'm planning on using in a project with printed parts. But I'm not sure how to attach and secure them properly. How is this done usually?
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2answers
68 views

Bicycle air pump project

Is a home 3D printer capable of printing a good bicycle air pump? I've searched the Internet and there is very limited info on it. Things need to be rigid and very minutious in the valve part of the ...
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3answers
509 views

What is the simplest way to render an image of an obj exported from Tinkercad?

I like Tinkercad so far for it's very simple UI. (I'm new to 3D modeling and very confused by Blender and the like.) However, I'm not using it to do 3D printing just yet. For I'd like to be able to be ...
2
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1answer
441 views

Cantilever snap-fits print axis

I'm new to 3d printing and need to design and print a case on an Ultimaker S5 using PLA. The case is box like and consist of a top and a bottom part. I was thinking about cantilever snap-fits to join ...
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1answer
244 views

3d print aluminum valve cover for car

I am interested in 3d printing from aluminum valve cover for car SAAB valve cover I am thinking of creating 3d scan and the placing order with i.materialize or similar online services. I am curios ...
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1answer
280 views

Hemispherical Bowl : how is it possible?

I was reading up about how to extrusion print an overhang greater than 45 degrees, when something weird stuck me. I see lots and lots of 3D extrusion printed bowls that have perfectly printed ...
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2answers
2k views

FreeCAD to design moving parts

I am trying to create a mechanism with moving parts, and would like to see how it works (whether it even works) before printing it. For example, there's a servo with a bracket, and I would like to ...
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4answers
433 views

How can I have a large 3D printed object?

I have a concept that's roughly 18"x30" (about 457x762 mm), and I just realized that the Makerbot and similar printers only allow dimensions around the size of a piece of paper. What are other options?...