Flying Stone GETA-083 (Get A-grade)!
Version 0.0
2016-06-??
Niibe Yutaka
Flying Stone Technology
What's this?
============
GETA is a Japanese footware. This is a part which is intended to put
under a PCB of 1.6mm thickness, so that the PCB can be fit into the
USB-A receptacle. I design this for FS-BB48.
I designed FST-01 (Flying Stone Tiny ZERO-ONE) in 2011. Then, I
manufactured the product. Soon after that, I found that FST-01 is a
something like a course name for computer science in India.
If it were a course name, I'd say, "Get A-grade"!.
In ASCII art
============
I assume that the thickness of each layer is 0.2mm.
But it could be changed thinner or thicker.
It depends.
This is the figure.
___________________ copper
------------------------------------------...
|
|
|
|
|
| 1.6mm PCB
|
|
|
|
|
|
------------------------------------------...
| 0.2mm layer 1 |
------------------------
| 0.2mm layer 2 |
------------------------
| 0.2mm layer 3 |
------------------------
(1) Layer 1
<---- 11.75mm -------->
^ +---------------------+
| | |
| | |
| | |
12.0mm | | |
| | |
| | |
| | |
| | |
| | |
| | |
v +---------------------+
Purpose of Layer 1 is to match the thickness of 1.84mm of USB device
board.
(2) Layer 2
<---- 11.75mm -------->
^ +---------------------+
| | |
| | +--+ | ^
| | | | | | 2.5mm
12.0mm | | +--+ | v
| | |
| | |
| | +--+ |
| | | | |
| | +--+ |
| | |
v +---------------------+
<--5.16mm->
<-->
2.0mm
Purpose of Layer 2 is to have a hole. (Standard USB-A Plug use metal
for this and the thickness is 0.15mm.)
(3) Layer 3
<---- 11.75mm -------->
^ +---------------------+ ^
| | | | 2.0mm
| +-------------+ | v
| | |
12.0mm | +-------------+ | ^
| | | | 3.0mm
| | | |
| +-------------+ | v
| | |
| +-------------+ | ^
| | | | 2.0mm
v +---------------------+ v
<---7.16mm---->
Purpose of Layer 3 is to support the USB device in the receptacle.
This is important for FS-BB48, where we assume touching the board for
the button.
License
=======
This document and the design file is distributed under GPLv3 (or later).
Please see COPYING.
I don't think the generated material based on the design will be
covered by copyright, but if you care, I don't ask you to deliver the
text of GPLv3 along with the physical material.
--