11. Open Source Hardware - From Fibers to Fabric¶
I am writing this week's detail work under my NDA folder due to confidential work for TOYOTA.
I am only sharing the research and inspiration part here.
Learning outcomes¶
- Research skills: the participant has acquired knowledge through references and Concept development
- Design skills: the participant has learnt through sketches, 3D modeling, use of electronics, etc
- Fabrication skills: the participant is capable of executing from file to production workflow, from 3D modelling to digital fabrication, electronics, materials
- Process skills: Anyone can go through the process, understand it and reproduce it
- Final outcome: The assignment is assembled and either complete or tested
- Originality: Has the design been thought through and elaborated?
Student checklist¶
- Research and document existing fabrication methods, machines and industries, add references, tutorials and sketches of the hardware you will make
- Document the process of designing the files for your machine/machine-hack/tool and its fabrication including the assembly process
- Document the schematic and the software source code (if any)
- Document the parts and how to make your tool or machine
- Document your BOM (Bill of materials): electronics, materials, their amount, etcetera (with references of the components)
- Upload your 3D model and CAM files (if any)
- Design, create and document a final outcome, a sample project of your process
- Make a small video of the machine
- Create an interface for controlling your machine (extra credit)
Research & Ideation¶
This week, I am tackling about making easier manufacturing method of Seat back supporting strings weaving system for Kinetic Seat.
Thanks to Kae's advice, I decided to hack CNC machine in Skylab Workshop to weave the strings.
How to place each strings in right place in right order is important, and more importantly each strings' subtle tension tuning with actual human leaning condition is the key to assure the Kinetic Seat performance.
It takes about half day for our technician to assemble and tune the seat back strings for the moment, since it is very sensitive to adjust the strings' tension one by one.
I have to consider how to assure the weaving tension with the CNC machine.
Then, Rico came up an excellent idea about utilizing fishing reel's drug function to keep the tension all the time.
Yes, this must be the way to hack CNC machine.
Then, install tip part of fishing rod at the CNC head in stead of the end-mill must be working well by providing further tension relaxation.
Then, sharing my plan of this week with Anastasia, she gave me following information.
ROBOTIC WEAVING
I am very much convinced to see page 100-103, they use exactly same shape string guide as fishing rod guide!
I am also convinced with the following picture showing the shape of string node as hammer head holds the strings and also keep the strings plane flat without dent.
Tools¶
- [CNC Machine(utilize the one in Skylab Workshop)](https://us.openbuilds.com/lead-cnc-machine-1010-40-x-40/)
- [BlackBox Motion Control System X32(utilize the one in Skylab Workshop)](https://us.openbuilds.com/BlackBox-Motion-Control-System-X32)
- [INTERFACE CNC Touch(utilize the one in Skylab Workshop)](https://us.openbuilds.com/interface/)
- Laptop PC
- Fishing reel
- Fishing rod tip part with stiff one
- Kinetic Seat frame
- [Fusion360](https://www.autodesk.com/products/fusion-360/overview?term=1-YEAR&tab=subscription&plc=FSN#top)
BoM¶
Materials¶
| Qty | Description | Price | Link | Notes |
|---|---|---|---|---|
| 1 | Fishing reel | 616 yen | second handed | order now |
| 1 | Fishing rod | 528 yen | second handed | find alternative |
| 1 | string | 1,470 yen | [amazon}(https://www.amazon.co.jp/dp/B07SDCQ5Y5?ref=cm_sw_r_cso_wa_apin_dp_D4RNBVBN6BTT1TRBBVPR&ref_=cm_sw_r_cso_wa_apin_dp_D4RNBVBN6BTT1TRBBVPR&social_share=cm_sw_r_cso_wa_apin_dp_D4RNBVBN6BTT1TRBBVPR&starsLeft=1&skipTwisterOG=1) |
Process¶
"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
My sketches are ...
This model 1 was obtained by..
The design 2 was created using..
footnote fabrication files
Fabrication files are a necessary element for evaluation. You can add the fabrication files at the bottom of the page and simply link them as a footnote. This was your work stays organised and files will be all together at the bottom of the page. Footnotes are created using [ ^ 1 ] (without spaces, and referenced as you see at the last chapter of this page) You can reference the fabrication files to multiple places on your page as you see for footnote nr. 2 also present in the Gallery.
Code Example¶
Use the three backticks to separate code.
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
Gallery¶
Video¶
From Vimeo¶
Sound Waves from George Gally (Radarboy) on Vimeo.