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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Scara chess robot design for 3d printing [migrated]

I have two question regarding Chess robot. 1- I want to build Scara robot that could play chess on 37 x 37 cm chess board, but I couldn't find any design that can cover the whole chess board and an ...
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78 views

Improving print speed by adding holes

Let's say, I want to print a box for putting game tokens in. It is an empty cube, but the top layer is missing. I do not need full walls. It could have holes in it resulting in a mesh structured wall, ...
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How to create free shapes in tinkercad?

I bought a 3D-printer (I love it!!) and now I'm creating 3D-designs with Tinkercad. I'm (obviously) a beginner and I'm now trying to create the bow of a little boat for which I have a specific shape ...
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41 views

Hack IKEA Trofast drawers

I'm looking to hack an IKEA Trofast storage unit. It's 3 drawers high (10 cm for each drawer), I would like to make it 6 drawers high, with thinner drawers (4 cm for each drawer). Which means : ...
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1answer
57 views

What effects does the non-carthesian coordinate system have on the Part-design process for printing with a belt printer?

Background: What's a Belt Printer's Coordinate system? For "normal" Cartesian (Portal, Cube) or Cylindrical (Delta) coordinate printers, the same Design Consideratons are to be kept in mind. ...
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OpenSCAD not rendering polyhedron

I'm trying to subtract a polyhedron from a cube, but it is not working (the cube remains solid). However, I can see the cut-out poly in preview mode (but not after a full render). Preview -- poly ...
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2k views

Water does not flow through 4 mm hole when there is a small amount, how to let water flow through small hole even when there is low pressure?

I have a 3D print where there are 5 holes with a diameter of 4 mm in a cup, and I would like liquid to flow through all 5 holes at once while slowly draining the cup (by slowly I mean: just take a few ...
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1answer
68 views

Vertical 5 mm diameter hole comes out fine, but diagonal 3 mm holes keep collapsing

I am trying to 3D print an object from Shapeways. Confidentiality prevents me from sharing the actual STL files publicly, but what I can say is that it's a shape about 2 cm tall x 4 cm wide x 4 cm ...
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2answers
91 views

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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382 views

Design connection to motor shaft for printed gear

I am currently trying to print a gear with the possibility to connect it to the shaft of a DC motor. The following picture best describes what the shaft of the motor looks like by showing the hole ...
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2answers
55 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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79 views

Converting / measuring bottle threads for creating an adapter to it

I'm trying to model the threads of a "Poland Spring" 500 ml bottle so I can 3D print an adapter for it. But I can't find information about it. I emailed them but they said they didn't have ...
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114 views

How does this multiple-curve-beam flexural pivot work?

I found this in Handbook of Compliant Mechanisms (2013), page 162, or at the start of "Chapter 11, Elements of Mechanisms," subsection 11.1.2 Revolute I don't understand how it's supposed to ...
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1answer
41 views

Ready to use objects instead of 3D-printing them [closed]

I hope this kind of questions are tolerated here. Otherwise, please tell me in the comment and I will delete the question - no needs to downvote. For a new job I need to create a lot of objects like ...
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1answer
27 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
84 views

OpenSCAD / FreeCAD splitting, hollowing and threading model

I had a thought the other day that it's 100 % waste to have either a solid or hollow 3D-printed model in relation to utilizing the space inside of it for different modules, e.g. secret compartments, ...
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1answer
56 views

3D printing source material and superglue

I've seen there are several different types of source material for 3D printing. My question is: Which of those would hold up under regular Loctite superglue or plastic model glue? I'm asking because I ...
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381 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
49 views

Best/Simplest/Easiest way to secure a lid

This is a part I designed, a kind of a frame: Into the frame I want to be able to place a flat object of variable (but uniform) thickness - like paper, glass, sheet metal, etc. The inserted object ...
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43 views

100k Thermistor not reading properly

I am working with a Flashforge Creator Pro Mighty Motherboard for my home built large 3D printer and the heat bed I purchased uses a 2 wire 100k thermistor, while the board uses a 4 pin connection. I ...
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2answers
96 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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47 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
36 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
261 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
660 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
1k 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
61 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
1k 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
116 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
105 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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418 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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4answers
435 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
131 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
77 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
116 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
513 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
6k 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
57 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
15k 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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18 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
116 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
189 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
80 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
232 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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619 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
155 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
151 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
346 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. ...