3D Design

Introduction

The space has a number of 3D printers and CNC machines. This page is for capturing instructions, know how and reference material regarding 3D printing and CNC design. How to go from design to manufactured part is left to pages dedicated to the different processes. Specific details about individual machines can be found on pages dedicated to those machines, if there is one.

Hackspace 3D Tools

• 3D Printer Area

Model Repositories

Online Model Repositories

Well known public depositories of models for free usage are;

• http://www.printables.com (Run by Prusa)

• http://www.makerworld.com (Run by Bambu Labs)

• http://www.thingiverse.com

• http://www.grabcad.com (needs registration, some models are pay per download);

• http://www.yeggi.com (usually links to above 2);

• https://www.youmagine.com/

• http://www.stlfinder.com (can go ANYWHERE with this one, caution recommended)

For a further more in depth list of depositories;

• http://3dprintingforbeginners.com/3d-model-repositories/

NOTE: If you are downloading an STL based model to modify in Fusion 360 then some work will be required to get from imported to usable. See for example: [Import and Edit STL Files in Fusion 360 2024] for more information.

Design Tools

Creating your own models to print - 3d Modelling - CAD Software

Using any CAD package requires patience and practice, but gives you absolute freedom to come up with your own designs. It is often easier to learn from people with experience so it is always worth asking other members what they use as they are likely to be willing to give you a helping hand. If you want to design models yourself, then some free to use pieces of software are available that will run on your own computer:

Fusion 360

Offers a fully featured parametric CAD package - Good for product/engineering type models. Lots of tutorials on YouTube. Personal use licence is free (at time of writing).

Blender

Is free and GUI based - Steep learning curve good for more organic modelling. Lots of tutorials on YouTube.

FreeCAD

Is free and GUI based

OpenSCAD

Is command line based.

WEB based design tools - will run in most browsers.

Tinkercad

Web Based from Autodesk - you will need to sign up for a free online account to use

Makerlab

Web Based set of simple design "apps" by Bambu that let you create printable models with relative ease - you will need to sign up for a free online account to use

https://makerworld.com/en/makerlab

In addition to the packages mentioned here, many others exist and almost any software that can produce STL files is usually suitable for 3D Printing.

Design Considerations

There is a lot of "know how" passed around on 3D printing forums. Some of it is good, some of it is terrible, some of it is just out of date.

If you are unsure it is probably worth making a trial print of a minimal design to test the essential elements in question. E.g. bolt holes or wall thickness strength for parts.

This is easy to do with the newer and much faster modern printers Bambu Lab A1 mini which is fast compared to the Ender 3.

Reference Material

• Import and Edit STL Files in Fusion 360 2024

• Plastic Snap-Fit Design(Local Copy)