Added the wiring section

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BubblesToTheLimit 2016-09-06 22:10:59 +02:00
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Get all the parts / raw material Get all the parts / raw material
- For the 3D printing there are two options: - 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 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€ 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 2. Buy the printout of adareth's model at shapeways for 210€ over here
http://www.shapeways.com/designer/adereth/creations http://www.shapeways.com/designer/adereth/creations
- Decide on the switches - Decide on the switches
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massdrop which is way different from usual online-stores. If you find a site that sells 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 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: - I got the "TKL Base Set + TKL Modifier" from over here:
http://pimpmykeyboard.com/dsa-pbt-abs-blank-keycap-sets/ but I'm still too long keys 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 short, I will have to order those specifically and I have a bunch of keys I don't use
left-over. left-over.
- The USB-Cable that connects the keyboard to your computer - The USB-Cable that connects the keyboard to your computer
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really makes handling the keyboard so much more comfortable really makes handling the keyboard so much more comfortable
- https://www.amazon.de/gp/product/B00NH11N5A/ - https://www.amazon.de/gp/product/B00NH11N5A/
- The main controller (right half) - The main controller (right half)
- A Teensy 2.0, i got that one from here: https://www.pjrc.com/store/teensy.html - 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 - The chip, connectors and cable to give life to the left half
- TTRS cable and jacks - TTRS cable and jacks
- Got my TTRS cable from here: http://www.digikey.de/product-search/de?keywords=839-1257-ND - 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 - Got my TTRS jacks from here: http://www.digikey.de/product-search/de?keywords=CP-43514-ND
- MCP23018 16 bitIO Expander - MCP23018 16 bit IO Expander
- Got mine from here: http://www.digikey.de/product-search/de?keywords=MCP23018-E%2FSP-ND - 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): What I spend on my keyboard (should give you a rough estimate for your build):
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Depending on what you have available you might spend more or less money than me, 300€ however Depending on what you have available you might spend more or less money than me, 300€ however
is a good rough estimate. is a good rough estimate.
* Dactyl Flexible PCB Rough Guide After all the parts have arrived it is safe to move on to the next section
[[workbench.jpg]] * Wiring
For now, take a look at the images and try to figure things out, I know 1) Plug the switches into the Casing, no glue is needed, the casing provides the perfect fit.
that's not great (it's better than nothing!) 2) Put the keycaps on the switches
** Making the PCB [[file:switches_still_in_bag.jpg]]
Get two sheets of 6in square Pyralux™. Use the Toner Transfer method to [[file:]]switches_applied_to_casing.jpg
etch the Pyralux sheets as you would a usual PCB
#+BEGIN_QUOTE Now going further on in the guide there are two options
NOTE: If you only have an Inkjet make photocopies of the print out, 1. The first option is to print flexible PCBs. The advantage is that you save alot of wiring
voilà Toner based copies! business, everything looks rather clean and you dont have to worry about your cables being too
#+END_QUOTE 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, hand-wiring everything by hand.
- The guide for this 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 joy 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
- Some of the steps of this guide may not be described in much detail, but in contrast to the
first guide there is a whole lot more of information.
- [[Route 2: Dactyl Hand-Wiring Guide]]
[[http://www.instructables.com/id/Toner-transfer-no-soak-high-quality-double-sided/][Here'sa handy toner transfer guide ...]] ** Route 1: Dactyl Flexible PCB Rough Guide
[[workbench.jpg]]
Print these PCB designs out... 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!)
Left hand: *** Making the PCB
[[left-hand-pcb-pyralux.png]] Get two sheets of 6in square Pyralux™. Use the Toner Transfer method to etch the Pyralux sheets as
you would a usual PCB
Right hand: #+BEGIN_QUOTE
[[right-hand-pcb-pyralux.png]] NOTE: If you only have an Inkjet make photocopies of the print out,
voilà Toner based copies!
#+END_QUOTE
When you're done etching, you'll need to carefully cut the pcb into [[http://www.instructables.com/id/Toner-transfer-no-soak-high-quality-double-sided/][Here'sa handy toner transfer guide ...]]
pieces... See the images below.
** This is Madness... Print these PCB designs out...
The thumb cluster pcb for the left hand: Left hand:
[[madness.jpg]]
Solder the MCP like so: [[left-hand-pcb-pyralux.png]]
[[left-hand-mcp-1.jpg]]
[[left-hand-mcp-2.jpg]]
Solder the Teensy 2.0 like so: Right hand:
[[teensy-1.jpg]]
Some interesting pull up 10k resistor business here... (TODO add a small [[right-hand-pcb-pyralux.png]]
diagram and notes)
[[teensy-2-fuxor-reziztorrs.jpg]] When you're done etching, you'll need to carefully cut the pcb into pieces... See the images
below.
Each hand of the keyboard will wire up like so: *** Applying the PCB to the electronical parts
[[right-hand-pcb-1.jpg]] The thumb cluster pcb for the left hand:
Teensy goes here... note the rows soldered to the teensy via the [[madness.jpg]]
Pyralux:
[[right-hand-pcb-with-teensy.jpg]]
Here the left hand: Solder the MCP like so:
[[hotglue-left-hand.jpg]]
That's all for now, this guide will improve over time! (TODO!) [[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

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