merging
|
@ -1,2 +1,9 @@
|
|||
*~
|
||||
\#*\#
|
||||
|
||||
.repl-*
|
||||
.nrepl-*
|
||||
|
||||
.lein-*
|
||||
|
||||
/target
|
||||
|
|
23
README.md
|
@ -6,7 +6,24 @@ The Dactyl is a parameterized, split-hand, concave, columnar, ergonomic keyboard
|
|||
## Assembly
|
||||
|
||||
### Generating a Design
|
||||
TODO
|
||||
|
||||
**Setting up the Clojure environment**
|
||||
* [Install the Clojure runtime](https://clojure.org)
|
||||
* [Install the Leiningen project manager](http://leiningen.org/)
|
||||
* [Install OpenSCAD](http://www.openscad.org/)
|
||||
|
||||
**Generating the design**
|
||||
* Run `lein repl`
|
||||
* Load the file `(load-file "src/dactyl_keyboard/dactyl.clj")`
|
||||
* This will regenerate the `things/*.scad` files
|
||||
* Use OpenSCAD to open a `.scad` file.
|
||||
* Make changes to design, repeat `load-file`, OpenSCAD will watch for changes and rerender.
|
||||
* When done, use OpenSCAD to export STL files
|
||||
|
||||
**Tips**
|
||||
* [Some other ways to evaluate the clojure design file](http://stackoverflow.com/a/28213489)
|
||||
* [Example designing with clojure](http://adereth.github.io/blog/2014/04/09/3d-printing-with-clojure/)
|
||||
|
||||
|
||||
### Printing
|
||||
Pregenerated STL files are available in the [things/](things/) directory.
|
||||
|
@ -14,10 +31,10 @@ Pregenerated STL files are available in the [things/](things/) directory.
|
|||
### Wiring
|
||||
Masks for the flexible PCBs I used are available for the [left](resources/pcb-left.svg) and [right](resources/pcb-right.svg) side.
|
||||
|
||||
TODO: Tutorial on how to actually make these.
|
||||
A [very rough guide for the brave is here](guide/README.org#wiring) - It will be improved over time (**TODO**)!
|
||||
|
||||
## License
|
||||
|
||||
|
||||
Copyright © 2015 Matthew Adereth
|
||||
|
||||
The source code for generating the models (everything excluding the [things/](things/) and [resources/](resources/) directories is distributed under the [GNU AFFERO GENERAL PUBLIC LICENSE Version 3](LICENSE). The generated models and PCB designs are distributed under the [Creative Commons Attribution-NonCommercial-ShareAlike License Version 3.0](LICENSE-models).
|
||||
|
|
|
@ -0,0 +1,242 @@
|
|||
* Preparation and Cost
|
||||
Get all the parts / raw material:
|
||||
- For the 3D printing there are two options:
|
||||
1. Filament, which is the basis for 3D printing. Luckily I could print at my work-place
|
||||
which reduced the cost from 210€ to 70€. The kind of filament you need depends on the 3D
|
||||
printer you have available.
|
||||
2. Buy the printout of adareth's model at shapeways for 210€ over here
|
||||
http://www.shapeways.com/designer/adereth/creations
|
||||
- Decide on the switches
|
||||
- If you are going to invest a whole lot of time and money for a custom keyboard instead of
|
||||
buying one for 10€ I'd recommend to use your favorite switch-type. To make a
|
||||
well-informed decision I bought a switch-tester for this from massdrop and decided on
|
||||
Cherry MX Whites. https://www.massdrop.com/buy/varmilo-switch-tester-with-anodized-case
|
||||
- I ordered 70 Cherry MX Whites from here:
|
||||
https://mechanicalkeyboards.com/shop/index.php?l=product_detail&p=847
|
||||
- Decide on the key caps
|
||||
- On the glamour-Shot you can see the 1976 keycap set, it used to be sold over here:
|
||||
http://pimpmykeyboard.com/sa-1976-keycap-set/ but the link is dead right now. You could
|
||||
try this link: https://www.massdrop.com/buy/nineteenseventysix-sa-keycap-set but it is a
|
||||
massdrop which is way different from usual online-stores. If you find a site that sells
|
||||
these make sure you get the right amount and type of keys according to the layout
|
||||
- I got the "TKL Base Set + TKL Modifier" from over here:
|
||||
http://pimpmykeyboard.com/dsa-pbt-abs-blank-keycap-sets/ but I'm still two long keys
|
||||
short, I will have to order those specifically and I have a bunch of keys I don't use
|
||||
left-over.
|
||||
- The USB-Cable that connects the keyboard to your computer
|
||||
- It's an USB 2.0 to USB Mini-B cable, make sure you get one that is 2 meters long, it
|
||||
really makes handling the keyboard so much more comfortable
|
||||
- https://www.amazon.de/gp/product/B00NH11N5A/
|
||||
- The main controller (right half)
|
||||
- A Teensy 2.0, I got that one from here: https://www.pjrc.com/store/teensy.html
|
||||
- The chip, connectors and cable to give life to the left half
|
||||
- TTRS cable and jacks
|
||||
- Got my TTRS cable from here: http://www.digikey.de/product-search/de?keywords=839-1257-ND
|
||||
- Got my TTRS jacks from here: http://www.digikey.de/product-search/de?keywords=CP-43514-ND
|
||||
- MCP23018 16 bit IO Expander
|
||||
- Got mine from here: http://www.digikey.de/product-search/de?keywords=MCP23018-E%2FSP-ND
|
||||
|
||||
What I spend on my keyboard (should give you a rough estimate for your build):
|
||||
| item | cost |
|
||||
|-----------------------------------+------|
|
||||
| filament | 70 |
|
||||
| switch-tester | 30 |
|
||||
| key-caps | 70 |
|
||||
| teensy 2.0 | 30 |
|
||||
| switches | 60 |
|
||||
| usb cable | 10 |
|
||||
| IO Expander, TTRS jacks and cable | 30 |
|
||||
|-----------------------------------+------|
|
||||
| overall cost | 300 |
|
||||
#+TBLFM: @9$2=vsum(@2$2..@8$2)
|
||||
|
||||
My choices / advantages:
|
||||
- Using the soldering iron at the uni-workshop for free
|
||||
- 76 Diodes for free
|
||||
- Soldering wire and copper for free
|
||||
- All the resistors used for free (5 resistors are used)
|
||||
- Several files for working out the rough edges of the 3D-printout
|
||||
|
||||
Depending on what you have available you might spend more or less money than me, 300€ however
|
||||
is a good rough estimate.
|
||||
|
||||
After all the parts have arrived it is safe to move on to the next section.
|
||||
|
||||
* Wiring
|
||||
It is assumed that you have printed the casing successfully.
|
||||
|
||||
1) Plug the switches into the Casing, no glue is needed, the casing provides the perfect fit.
|
||||
2) Put the keycaps on the switches
|
||||
- Note that in the pictures here some of the long keys on the thumb-part are too short,
|
||||
that's why it doesnt look symmetrical
|
||||
|
||||
[[file:application-of-switches-and-caps.jpg]]
|
||||
|
||||
Now going further on in the guide there are two options
|
||||
1. The first option is to print flexible PCBs. The advantage is that you save alot of wiring
|
||||
business, everything looks rather clean and you dont have to worry about your cables being too
|
||||
thick such that the casing doesnt close. However if you don't have the means to print out such
|
||||
PCBs there is the second option, wiring everything by hand.
|
||||
- The guide for this PCB-option is very rough indeed and it doesnt include the firmware
|
||||
used. Wiring and firmware play extremely close together, wiring before knowing your
|
||||
firmware is like buying a shoe without measuring your feet before. For this option
|
||||
information about the exact firmware is not published, this in addition to the fact that
|
||||
the pictures in this rough guide are incomplete makes this option extremely
|
||||
beginner-unfriendly. Going in blind-sided like this may lead to one of these things:
|
||||
1. reprogramming huge parts of the firmware to match your wiring which comes with a ton of
|
||||
debugging
|
||||
2. rewiring to adapt to what the firmware expects, which may easily double your work here
|
||||
- [[Route 1: Dactyl Flexible PCB Rough Guide]]
|
||||
2. The second option is to hand-wire everything. For people like me who had never soldered before
|
||||
this was great pain and pleasure.
|
||||
- Here too firmware and wiring go hand in hand, you pretty much have to have a detailed look
|
||||
at the firmware you are using before wiring anything. I provide my modification of the
|
||||
"ergodox-firmware" over here: https://github.com/BubblesToTheLimit/ergodox-firmware
|
||||
- TODO: Make a successfull pull-request, such that it is available in the official
|
||||
ergodox-firmware
|
||||
- Some of the steps of this guide may not be described in much detail, but in contrast to
|
||||
option one there is a whole lot more of information.
|
||||
- [[Route 2: Dactyl Hand-Wiring Guide]]
|
||||
|
||||
** Route 1: Dactyl Flexible PCB Rough Guide
|
||||
[[workbench.jpg]]
|
||||
|
||||
For now, take a look at the images and try to figure things out, I know that's not great (it's
|
||||
better than nothing!)
|
||||
|
||||
*** Making the PCB
|
||||
Get two sheets of 6in square Pyralux™. Use the Toner Transfer method to etch the Pyralux sheets as
|
||||
you would a usual PCB
|
||||
|
||||
#+BEGIN_QUOTE
|
||||
NOTE: If you only have an Inkjet make photocopies of the print out,
|
||||
voilà Toner based copies!
|
||||
#+END_QUOTE
|
||||
|
||||
[[http://www.instructables.com/id/Toner-transfer-no-soak-high-quality-double-sided/][Here'sa handy toner transfer guide ...]]
|
||||
|
||||
Print these PCB designs out...
|
||||
|
||||
Left hand:
|
||||
|
||||
[[left-hand-pcb-pyralux.png]]
|
||||
|
||||
Right hand:
|
||||
|
||||
[[right-hand-pcb-pyralux.png]]
|
||||
|
||||
When you're done etching, you'll need to carefully cut the pcb into pieces... See the images
|
||||
below.
|
||||
|
||||
*** Applying the PCB to the electronical parts
|
||||
The thumb cluster pcb for the left hand:
|
||||
|
||||
[[madness.jpg]]
|
||||
|
||||
Solder the MCP like so:
|
||||
|
||||
[[left-hand-mcp-1.jpg]]
|
||||
[[left-hand-mcp-2.jpg]]
|
||||
|
||||
Solder the Teensy 2.0 like so:
|
||||
|
||||
[[teensy-1.jpg]]
|
||||
|
||||
Some interesting pull up 10k resistor business here... (TODO add a small diagram and notes)
|
||||
|
||||
[[teensy-2-fuxor-reziztorrs.jpg]]
|
||||
|
||||
Each hand of the keyboard will wire up like so:
|
||||
|
||||
[[right-hand-pcb-1.jpg]]
|
||||
|
||||
Teensy goes here... note the rows soldered to the teensy via the Pyralux:
|
||||
|
||||
[[right-hand-pcb-with-teensy.jpg]]
|
||||
|
||||
Here the left hand:
|
||||
|
||||
[[hotglue-left-hand.jpg]]
|
||||
|
||||
That's all for now, this guide will improve over time! (TODO!)
|
||||
** Route 2: Dactyl Hand-Wiring Guide
|
||||
*** Step 1: Creating the rows
|
||||
Using the copper wire you solder each row together, notice how the thumb-part gets its own
|
||||
row. If you take a close look you can see how I did do a messy job soldering, I had to redo
|
||||
some of the parts because they weren't soldered properly. Do this for both sides. Which ones
|
||||
of the two available pins of each switch you chose for the row doesnt matter, but for it to
|
||||
look clean you should decide for either one of them.
|
||||
|
||||
[[file:wiring_create_rows.jpg]]
|
||||
|
||||
[[file:wiring-create-rows-both-sides.jpg]]
|
||||
|
||||
You might want to go ahead and test each one of the 70 switches with a multimeter.
|
||||
|
||||
[[file:wiring-create-rows-testing.jpg]]
|
||||
|
||||
*** Step 2: Create the columns
|
||||
The next step is to create the columns by soldering the diodes. There are two options for
|
||||
soldering the diodes, all heading towards the switch or all heading away from the
|
||||
switch. These two ways are called "row-driven" or "column-driven" and here again it is
|
||||
cruciual for the firmware and the actual wiring to be on the same page.
|
||||
|
||||
[[file:diode-diagram-drive-columns.png]]
|
||||
|
||||
[[file:diode-diagram-drive-rows.png]]
|
||||
|
||||
If you want to try and use the "tmk_keyboard" firmware which seems to be also interesting you
|
||||
want to wire the diodes in the according way (check whether the tmk_keyboard firmware expects
|
||||
a row-driven or a column-driven setup).
|
||||
|
||||
As you can see in these following pictures I went for the "row-driven" setup (visible by the
|
||||
direction of the diodes, the black line being towards the key-switches). This first picture
|
||||
doesnt show how the 6 thumb-keys are actually individually connected to the 6 main columns,
|
||||
but note the small black line on each diode.
|
||||
|
||||
[[file:wiring-create-columns-left.jpg]]
|
||||
|
||||
This second picture shows how the 6 thumb-keys are actually connected to the 6 main columns.
|
||||
|
||||
[[file:wiring-create-columns-right.jpg]]
|
||||
|
||||
How Thumb-keys are wired again depends on the firmware, the following picture shows the wiring
|
||||
of the thumb keys more clearly and also the part in the code that reflects this wiring
|
||||
(ergodox-firmware/src/keyboard/dactyl/matrix.h).
|
||||
|
||||
[[file:thumb-key-wiring.jpg]]
|
||||
|
||||
*** Step 3: Put the Teensy and the MCP in place
|
||||
This next step is to wire the Teensy 2.0 and the MCP 23018 in place.
|
||||
Everything necessary for that really is the following circuit diagram
|
||||
|
||||
[[file:circuit-diagram.png]]
|
||||
|
||||
Things to note here:
|
||||
- The columns for the MCP go from 0 to 6, the columns for the Teensy go from 7 to D (counting
|
||||
in hexadecimal) which makes great sence, since the MCP is left to the Teensy and we read from
|
||||
left to right.
|
||||
- When debugging this and using the ergodox-firmware, both sides have to be wired completely
|
||||
and actually with the TTRS connected, dont expect the keyboard to work before that. The reason being is how
|
||||
the ergodox-firmware stops completely if either the Teensy or the MCP weren't initiated
|
||||
properly.
|
||||
- In the circuit-diagram the columns on the left side (MCP side) actually go from GPA5 to INTA
|
||||
(TODO: Update the circuit diagram and get rid of this point)
|
||||
- The LEDs are handy for debugging, definately go ahead and connect those. When the keyboard
|
||||
starts successfully two of the LEDs light up shortly.
|
||||
- From the Teensy over to the MCP go exactly 4 connections. The blue, the red and the two green
|
||||
ones. This is done using the TTRS jacks and cable.
|
||||
- Yes, the connection from B4 to VCC doesnt seem to make any sense, but the B4 port actually
|
||||
gets used directly in the ergodox-firmware, so just connect those connections that make no
|
||||
sense on first sight and either dont question it or find out why this is necessary by going
|
||||
through the firmware in great detail.
|
||||
|
||||
This is how the trrs jacks are wired:
|
||||
|
||||
[[file:trrs-jack.jpg]]
|
||||
|
||||
After you are done you might have the following result:
|
||||
|
||||
[[file:rows-and-columns-connected-to-chips.jpg]]
|
||||
|
||||
Good luck!
|
After Width: | Height: | Size: 365 KiB |
After Width: | Height: | Size: 140 KiB |
After Width: | Height: | Size: 797 KiB |
After Width: | Height: | Size: 796 KiB |
After Width: | Height: | Size: 143 KiB |
After Width: | Height: | Size: 32 KiB |
After Width: | Height: | Size: 34 KiB |
After Width: | Height: | Size: 152 KiB |
After Width: | Height: | Size: 245 KiB |
After Width: | Height: | Size: 138 KiB |
After Width: | Height: | Size: 140 KiB |
After Width: | Height: | Size: 128 KiB |
After Width: | Height: | Size: 2.2 MiB |
After Width: | Height: | Size: 54 KiB |
After Width: | Height: | Size: 55 KiB |
After Width: | Height: | Size: 299 KiB |
After Width: | Height: | Size: 1.1 MiB |
After Width: | Height: | Size: 1.7 MiB |
After Width: | Height: | Size: 2.1 MiB |
After Width: | Height: | Size: 1.9 MiB |
After Width: | Height: | Size: 2.1 MiB |
After Width: | Height: | Size: 1.6 MiB |
After Width: | Height: | Size: 104 KiB |
|
@ -1,6 +0,0 @@
|
|||
#Leiningen
|
||||
#Wed Mar 04 17:30:05 PST 2015
|
||||
version=0.1.0-SNAPSHOT
|
||||
revision=9e72dea9b02c89fb782537b8e1af7cda4f11c995\n
|
||||
groupId=dactyl-cave
|
||||
artifactId=dactyl-cave
|