Hello there! This is my first contribution to the community!
This was a project that we made this year in my career, Industrial Design and Product Development Engineering (1st Year, Second Quarter, Subject: "Design Methodology").
The objective of the project was the design of a module, like a construction set, that allows the building of infinite structures. The pieces will insert themselves into others in order to create the structures.
The thickness had to be of 10mm, so once sketching we had to draw 10x10mm squares to create the connections.
The design of the module had to be created by adding or subtracting geometrical basic shapes (polygons, circles...) or combination of several shapes.
The STL file was created in Fusion360. It's s the original one that I presented .
The OpenSCAD file was part of a Practical Class in Mathematics II. We were asked to create the same design of our module, but it had to be parametric, so if you want to modify the file, you are free to do it! ;)
Finally, don't forget to post your Makes and Remixes!
- Sliced in Slic3r PE at 50% scale
- Total print time: 30min (average)(printing 1 at a time)
- Printed in Prusa PLA (green, yellow), Bq PLA Easygo (blue, red) and Filaments2print Generic PLA (pink)
- I used rafts just in case, but they are not really necessary
You can sand the rounded shapes like the inner perforation, but you must never sand the connectors, otherwise the pieces may be too loose. Only sand if you need too much force to connect the pieces.
Overview and Background
This project was initially thought to suit university students, but it can be really easily adapted to middle school students.
The aims of this project are the improvement of the creative process of the student and his/her basic abilities. The student can learn basic sketching and basic 3D/2D design and also improve his mathematical logic.
This is a group project, the modules of every student of the group are specter to have some design features in common (static, features, group of shapes, size...) and also to be able to connect between them, so cooperation is needed. This way, the student can train his cooperation and communication skills.
All modules must follow the following rules:
- Thickness: 10mm
- Maximum XY dimensions: 100*100mm
- They must be generated with at least the interaction of 2 basic geometrical shapes
Lesson Plan and Activity
Step 1: Sketches
The student must design several proposals of design (30 for university students, but this number should be lowered for younger ones). Each drawing will have a reference image and one or more words to show what they want to transmit with their design.
1º Sketch (discontinued line indicates the position of the attached pieces)
3 or 4 of these designs (the best ones that follow the requirements) will be selected in order to polish them and make them more appealing, if needed.
Once the designs are prepared, we can go to Step 2: First Prototypes.
Step 2: Prototypes
Using some polystyrene slabs and the polystyrene cutter (Warning! You can burn yourself or the piece you are working on!) the student will create several prototyped modules of each design. 5 modules of each design should be enough in order to evaluate how they interact.
In order to prepare the prototypes, we will stack between 1 and 3 polystyrene slabs (remember, they must have a maximum size of 10010010mm. All modules must be 10mm thick). On the top and bottom of this tower, we will pin a cardboard template. the same pins used to hold the cutting templates will hold the slabs in place.
Cutting out a module
If you need to make inner holes (circular or non circular) you can make a small hole with a pencil and then cut the hole with the polystyrene cutter.
If the hole is circular, you can use a vertical drill (way faster).
Drilling inner holes
Prototype (marks indicates possible changes)
Evaluation of how the modules attach between them
Once the prototypes had been evaluated, one design must be selected.
It's time to create a new drawing with the final design, all changes must be present.
Step 3: Final Design
With the final sketch, it's time to create the virtual model of the design.
On this case, we used Fusion360.
The prices is really simple, we use the sketch as a canvas and then Extrude 10mm.
You can get your STL file from here, if you finally decide to print it
Extra: Plan your builds in Fusion360
Before starting to print your modules, it's a good idea to check how they interact on a bigger structure and to have a general idea of the quantity that you'll need to print.
For this step, we will learn how to create structures in Fusion360.
The prices is really easy. We will need one file with one module. and a new empty file (saved, with name).
We will use the module's file to add the piece several times on the structure file. For assembly, we will use Joint (j) to automatically attach them.
You can also play with the color of your modules and see which one suits them better
(You must unlink each module from the source file in order to be able to change the material)
- Blue pencils (a good designer always makes his sketches in blue!)
- A3 paper with square reticulate (in order to have proportions and sizes)
- Reference Images and words (What do you want to transmit with your design?)
- Polystyrene tables (10mm thickness)
- Polystyrene cutter (Warning! You can burn yourself or the piece that you are working on!)
- Sandpaper (optional)
- Vertical drill (optional)
You can print your own module, but you can also made one with polystyrene (connectors will loosen quickly) or use some wooden planks!
- Mathematical logic
1 or 2 months must be enough to prepare the project