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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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2answers
85 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
76 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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3answers
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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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1answer
80 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
60 views

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
87 views

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
165 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
48 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
564 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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0answers
15 views

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
54 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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2answers
56 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
66 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
93 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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3answers
94 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
98 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
67 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
58 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
75 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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2answers
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
37 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
61 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
210 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
138 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
74 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
67 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
104 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 ...
2
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1answer
259 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 ...
3
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1answer
44 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
439 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?
3
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2answers
61 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
247 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
384 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 ...
3
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1answer
175 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 ...
4
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1answer
203 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
1k 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 ...
3
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4answers
359 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?...
5
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1answer
181 views

What is the best method of printing joints for action figures?

I'm interested in 3D printing toy action figures, but what I don't quite know how the joints should be designed to allow flexibility. I could imagine maybe something like a screw and nut for the ...
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0answers
16 views

How much relief between parts? [duplicate]

I'm working on creating parts which I want to fit snugly together. Obviously, if I make the female side of it 5mm and the male part of it also 5mm, it isn't going to fit together due to interference .....
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0answers
43 views

3d print first or board design? [closed]

I am trying to make a controller(Who doesn't want that?) for PC. Just before starting the build I wondered if it would be hard to 3D print to scale of my board. So I was stuck in a paradox... 3D print ...
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2answers
2k views

Can the glTF format be used for 3D printing?

Can the glTF format be used for 3D printing? If not, is there any tool can convert it to another format such as STL, OBJ, STEP, and IGES?
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2answers
379 views

What special considerations must be taken when designing parts for 3D printing?

What are the 'headline' basic design rules for FDM? Which topics for design principles do you recommend to someone who has purchased an FDM machine and wants to understand what is practical? In ...
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2answers
112 views

Where is the line between “inspiration” and copy and derivative?

Scenario: I'm cruising Thingiverse, and I find the awesomest thing. I NEED THIS IN MY LIFE. I download it, print it, and for whatever reason, it doesn't work quite right. OK, no big deal, I'll ...
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1answer
100 views

What printer should I consider for printing microfluidic channels? [closed]

I am looking to purchase a 3D printer for the fabrication of microfluidics. I am looking for a printer that can print channels with less than 200 µm cross-sections, preferably, can print ...
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3answers
212 views

Interesting project for a child [closed]

A member of our hackspace wants to get their 8- and 11- year old kids1 excited about 3D-printing and CNC cutting and makering in general. We have a weekly open training where people can design and ...
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1answer
105 views

Should black high temperature ABS flow in direct sunlight?

I bought a digital sundial online and deployed it in (what else?) direct sunlight in DC in June. Within 30 minutes the gnomon started to sag and the mount started to pull away from the gnomon at the ...
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1answer
81 views

Linking the 3D printing path coordinates to CAD for modelling

I was reading this research paper titled Sub-modeling Finite Element Analysis of 3D Printed Structures. In this, firstly, the author is trying to create a sketch for Engineering analysis using the 3D ...
5
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1answer
361 views

OpenSCAD library for empty space/holes

I am working on a design in OpenSCAD, and need (would want) two things that seem tedious to hand-code: A pattern of holes in a wall, for less weight/material. Could be round holes or some geometric ...
4
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1answer
64 views

Efficient packing of models with chains

I have a model where several solids are linked with chains. The original design contains a lot of empty space. I am looking for software, which can automatically move the solids and fold the chains ...