As a homework assignment this week, I modeled what I needed for the final project. They are surfboards, waterproof containers, fins (optional). I am planning to mill the surfboard to the 8th week (make something big) and intend to print the containers 3D in the 5th week. Also, I designed 2D for the final project's original logo.
|AKU Shaper||Free Two Week Trial||monthly subscription($45 / month) available|
|Shape3D||Free(lite)||costs 435 € a year to export STL files|
|BoardCAD||open source||trouble with exporting STL files|
I do not have any knowledge about surfboard design, and I do not want my original design to ruin the final project, so I decided to copy my existing surfboard design
First, I measured my board dimensions. The length of the board was 2440 mm(96 inches), the maximum thickness of was 750 mm(29.5 inches), and the maximum width was 560 mm(22 inches).
I started the application and opened and chose the blank board, which is appropriate for the size I'm going to design.
I can modify the surfboard profile freely by moving blue bezier points.
I added blue bezier points on the board profile at every 100 mm from the nose of the board.
I adjusted blue bezier points to match my surfboard.
Then, I adjusted the rocker profile, too.
I exported my design in STL format and opened in 3D printing slicer software(Simplify 3D). It looked like my surfboard.
AKU Shaper format is here
STL format is here
I didn't realize there are CAD tools specialized in designing a surfboard. There was a tutorial to design a surfboard with Fusion 360, but It doesn't look easy enough. Now that I understand the reason there are specific industry-oriented CAD softwares.
I wondered if there were any CAD for a particular purpose? I did some my homework.
|Fasion(pattern making)||Optitex‘s ODev, OPro and OSel programs; Kaledo from Lectra; Telestia Creator; FashionCAD and etc.|
|Footware||Romans CAD; Shoemaster CAD; ICad3D+; ElitronCAD 2D Footwear; great list is here|
|Architecture||AutoCAD Architecture; Chief Architect; TurboCAD; BricsCAD; ProgeCAD and etc.|
As a design of a watertight enclosure, I assume a box like an image shown below. There is a groove in the top of the box wall, and rubber-made O-ring is placed in it. There is a convex part on the back side of the lid. When the lid is placed on the box and pressure is applied, the O-ring will be crushed, and the waterproof will be achieved
I used AutoDesk Fusion 360 for my box modelling.
First, I drew a rectangle sketch on XY plane and extruded the profile plane.
Then "Modify/Shell" the box and place a lid as a "New Body" on the top of the box.
Select the top of the box as the profile plane and "Create/Sketch" a groove profile on it.
"Extrude" it from the back side of the lid with the operation "Join." then Modify/Combine" with the box as "Target Body" the lid as "Tool Body" and "Keep Tools"
The operation made a groove on the top of the box.
"Modify/Fillets" at all corners.
In this design, the wall thickness of the box became thick enough to be dug a groove, it takes time and material cost in 3D printing. Since sufficient thickness is needed in the part where the groove is formed, I redesigned as follows.
watertight enclosure 3d modelling: Fusion 360 format (.f3d)
Since the concave-convex parts are the same size at this time, the 3D printed concave-convex part will not be inserted successfully. Considering such as to offset convex portions will be necessary. Also, I do not know how much the wall thickness (strength) necessary for waterproofing is. I am going to observe the product to make use of design for modeling.
One of my friends told me that there was no big O-ring if I design a box big. It is necessary to decide the size of the box required for storing the electronics and selecting an O-ring size close to the size of the box. Then you will need to redesign 3D modeling to fit that O-ring size. My friend also said that if the size gets bigger, I will have to use a rubber sheet. In that case, the groove may not be necessary. Furthermore, the double-sided tape would play the role of waterproofing. I will 3D-print a box and will test the waterproofness of them in the near future.
I know little about how to use Fusion 360 yet. I will practice, Practice and PRACTICE! Practice makes perfect. I am going to try softwares other than fusion 360.
I know how to vectorize black and white raster images by Inkscape, but I did not know how to make a part of the photo image a vector image. So, based on this tutorial, I tried to create the surFABoard logo with illustrator. The operation is going to use "Compound Paths(Clipping Mask)."
Open an Image,
Making compound paths(using as a mask))
then, setting a mask made unwanted parts gone.
put a fabfont on it and done
logo file (illustrator): download
After modelling, I have not understood the concept of "layer" yet. I am going to need more practice illustrator as well as Fusion 360.
I also tried logo design with raster type software, Gimp.
First, open an Image and select sections, which I wanted to delete, with intelligent scissors tool.
Then, delete them.
Paint black and put "surFABoard" text and rotate a bit.
logo file (Gimp): download
The boundary line is not as smooth as a vector logo. I felt the vector software was suitable for a logo design.
surfboard 3D modelling: AKU Shaper format
surfboard 3D modelling: STL format
watertight enclosure 3D modelling: fusion 360 format (.f3d)