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
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
478 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?...
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1answer
338 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 ...
3
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2answers
3k 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?
3
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2answers
494 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 ...
3
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2answers
123 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 ...
4
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1answer
103 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 ...
2
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3answers
219 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 ...
5
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1answer
123 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 ...
3
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1answer
102 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
555 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
66 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 ...
5
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3answers
106 views

Getting precise measurement of a complex rod

I'm trying to build a headrest for my Sayl office chair. For that, I'm designing a 3d-printed part that's going to fit on one of the existing rods of the chair. Check out this picture: How would you ...
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3answers
2k views

Generating mold from stl file of the 3D drawing of the object

I want to know how to make a mold of a 3D design in .stl format. Suppose I have a 3D partin .stl format (for e.g. a cylinder) and I want to make/design a mold for this object (i.e. the structure ...
4
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1answer
118 views

Dual PSU with one switch fuse

My home built printer has been having issues running properly. The x/y/z motors will run freely with standard non build position commands but when they are suppose to start a raft layer and they ...
2
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2answers
890 views

Black surface in Meshmixer

I was working on a model today and I need to make the black surface into a normal surface so that the ship's cockpit is solid. I am unable to select the black surface. I tried using the flip normals ...
5
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1answer
1k views

How do I compute the surface & volume of a large amount of STL files?

Please, how do I compute the surface & volume of a large amount of STL files ? I have over 3000 STL files, and I want to know their respective volumes and surfaces. I will use this data to be ...
2
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3answers
822 views

Connecting disconnected pieces in Fusion360 Stencil. Sketch entire model then extrude

I am trying to make stencils of Japanese Kanji characters with my 3D Printer. I am very new to Autodesk Fusion360 so I am running into some barriers: I am having trouble sketching a rectangle and ...
1
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1answer
89 views

Is there any public and reasonably accurate 3D scan from a Cray-2 computer? [closed]

I'm thinking about building a Cray-2 inspired cluster. I'm concerned about the exterior housing modules, proportions and panels. Has anyone done a good 3D scan of one?
5
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2answers
455 views

Which 3D design softwares make multi-material amf or other design files that slic3r will slice?

I'm looking for suggestions for 3D design software which support designing multi-material parts. I will be printing on a multi-extruder machine based on RepRap firmware. The printer will handle the ...
1
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1answer
962 views

Painting an STL file

I have an STL file that I want to add a tribal tattoo to with the end goal of getting it printed in colour sandstone from Shapeways, or in full colour on an Mcor Arke at some point, but I'm not really ...
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1answer
510 views

What's a good way to secure bushings in a 3D printed part?

I'd like to secure bushings in 3D printed parts. They would be used for a drilling jig. I've seen heat-set inserts, but they've all had threaded interiors. The best idea I can come up with is printing ...
4
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6answers
2k views

STL to STP CAD Conversion

Does anyone know of a good way to convert a 3D print file, like STL, to STEP - a useable file format for plastic injection molding companies? I have tried to convert the files through a couple of ...
5
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1answer
727 views

Can the `render` function be used to speed up rendering?

I am designing a moderately complicated piece in OpenScad. It renders fast enough in preview mode (1s). But when i do a full render so I can export to STL, it takes ages (In the 10s of minutes) I ...
2
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1answer
346 views

TinkerCAD Align to Odd Shaped Object

I have an odd-shaped object (I'll call it "A") that I have imported into a TinkerCAD drawing. Its dimensions do not align to any specific size, and therefore I can't really use the grid lock to help. ...
4
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2answers
388 views

How to modify 3D model of body?

I'm relatively new in the field of 3D printing and design. By now I've created and printed some technical objects with TinkerCAD, but now I've a task, which I don't know how to solve. I have the ...
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1answer
936 views

How to automatically add support and “base” to the model I am printing?

Most of time my prints fail due to lack of support and "base" for the 3D model. I'd like to know if there is any software that can automatically check my model, and add support and a "base" to it, if ...
3
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1answer
140 views

How to draw cube with cone (Dreidel like), using Onshape?

I want to draw a cube with cone using Onshape. I need the cone to "shave" the corners of the cube, till it gets to the middle point. This is diagram I made: What is the best way to do it?
8
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3answers
286 views

Are there any “best” or at least “common” practices to handle allowances in OpenSCAD code?

I'm designing a few mechanisms with OpenSCAD, and one of the parameters that need adjustment between printers/filaments is allowances between pieces that need to be assembled together (for example, if ...
6
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2answers
243 views

Are 3D printed gears applicable for industrial use?

Are 3D printed gears applicable for industrial use? I want to print some gears with ABS. What will their lifespan be? How long will they last if I use them, for example, every day?
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2answers
185 views

Fusion 360 M3D Slicer

I have created a design with fusion 360. I tried to print it with my M3D Pro printer but it seems the designs have a flaw. If I try to print the bottom part, the second layer is wrong. It seems to ...
7
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2answers
314 views

SVG to STL conversion to make symbols recognisable for visually impaired users

I work on communication devices for people with disabilities that prevent them from speaking. This can be anything from a board with symbols on, to a relatively sophisticated app. Some potential ...
4
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2answers
177 views

How to remove internal part of a hex grid

I am modelling a few cut templates to be used on an hexagonal grid (honeycomb) material using OpenSCAD. Basically, from a reference cell, I need to select all cells that are within a given range and ...
3
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3answers
518 views

How to concave a cylinder with Onshape?

If I have a 3D cylindrical extrusion (in Onshape), how can I scoop, carve, or indent a concave/parabolic curve in one of the ends? The yellow surface is the target. Here is the basic shape I'm ...
4
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2answers
132 views

My print did not turn out as I expected. Where can I start troubleshooting?

I am trying to modify this thing. It's prints OK, but there are some design choices I don't like, so, since the previous makers uploaded their source files, I tried my hand at Sketchup. My latest ...
2
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0answers
73 views

meshmodelling - remove parts of a mesh using uv map

Any idea which software they use to get the honeycomb pattern? I just read a nice article about the “Design of a Patient Specific, 3D printed Arm Cast”. (https://knepublishing.com/index.php/KnE-...
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2answers
3k views

How do I 3D-print fair dice?

As 3D printers become more and more reliable, their prints get better and better. But FDM printers do have their problems too: you print tiny ovals that smooch together at the edges, and infill makes ...
1
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1answer
61 views

A free simulation program

With some of the items I am designing I would love to put them through a simulation. Like crushing, for example. I want to know how well my object can handle any situation I put it through so I can ...
4
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2answers
984 views

Slicing adds holes/cracks to my object

I recently got started in 3D printing but here's an issue I can't seem to find a solution for (I don't know what exactly to look for). Here's what I did: I used InkScape to convert an emoji in to a ...
6
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3answers
416 views

Printing Object in multiple parts

Is there any software/methods to automatically splice objects into multiple pieces sort of like a jig saw puzzle so that I can combine them together and bypass the build plate size limit? As an ...
2
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1answer
916 views

Could I 3D print an airbrush? [closed]

Could I 3D model and print a working airbrush in PLA?
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2answers
1k views

3D Builder is Saying “One or more objects is invalidly defined”

Currently, 3D Builder is telling me "one or more objects are invalidly defined. Click here to repair." What is this and what does it mean? When I click it, it totally messes up my model (I can't tell ...
2
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2answers
667 views

How to draw kossel delta corner in fusion 360?

I want to draw kossel delta corner in fusion 360 for 2040 aluminium extrusion like on picture below, but cant find a way to actualy start, I draw 3 side polygon and 20x40mm rectangle but cant go from ...
1
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1answer
170 views

can the intel sense “xyzprinters 3dscanner” work on amd prossessors anyway?

i ordred a xyzprinter 3d scanner today on ebay, bechause i through it would work with my quick new windows 10 pc setup. but when i tested the scanner compability i downloaded here now, it says that ...
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2answers
1k views

Make a nose cone in Fusion 360

I am new to Fusion 360 and I think I'm going straight to something complicated. Is there a way to make a nose cone for a model rocket? What tools would one you to accomplish this?
2
votes
1answer
187 views

Designing back plate for Ring Doorbell [closed]

What is a good tool to use to design a back plate for a Ring Doorbell? The shape will essentially be a wedge shape, tilting the doorbell to the side and down a bit. I'll need to iterate over a few ...
4
votes
2answers
1k views

How to make an object hold water

I made a tea bowl, but it leaked when making it in PLA... What are the key points to keep in mind when designing and printing an object that is intended to hold water using an FDM printer?
4
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3answers
489 views

Looking to use 3D printing to make a master plate for rubber stamp vulcanizing

I am an art rubber stamp maker, using a vulcanizer to make art rubber stamps from molds that are usually created with a magnesium plate. The normal process is to send artwork off to an engraving ...