Apple-2-HW/unified_retro_keyboard
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Merge branch 'master' of https://github.com/osiweb/unified_retro_keyboard.wiki into master

Dave 2020-09-11 11:27:13 -05:00
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Home.md

@ -6,7 +6,7 @@ This wiki will collect technical notes, assembly and configuration guides, tips
[Classic Keyboard build guide](classic-keyboard-build)
[Apple II notes] (apple-ii-mount)
[Apple II notes] (apple-ii-notes)
<details>
<summary>Programming the Atmega chips</summary>

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apple-ii-notes/apple-ii-notes.md

@ -0,0 +1,31 @@
Notes on Apple II configuration
Mount the keyboard to the case using 6-32 Male/Femail standoffs. This will keep the keys from protruding too much, and provides room for the lid to slide between the case and the keyboard.
Because the threads for the keyboard screws are angled relative to the case, I suggest using an internal-tooth lockwasher between the standoffs and the case to provide a bit of traction.
I also suggest using thin insulating plastic washers beneath the screw heads to protect the PCB, although this is optional.
<details>
<summary>Mounting keyboards with Cherry MX keys</summary>
Parts:
* (qty 4) standoff, 6-32, 3/16". Example: https://www.mcmaster.com/93505A633
* (qty 4) internal tooth lock washers, #6. Example: https://www.mcmaster.com/91108A140
* (qty 4) plastic washers, #6 (optional). Example: https://www.mcmaster.com/90295A380
</details>
</details>
<details>
<summary>Mounting keyboards with Futaba MD4-PCS keys</summary>
Parts:
* (qty 4) standoff, 6-32, 5/8". Example: https://www.mcmaster.com/93505A443
* (qty 4) internal tooth lock washers, #6. Example: https://www.mcmaster.com/91108A140
* (qty 4) plastic washers, #6 (optional). Example: https://www.mcmaster.com/90295A380
</details>

9
classic-keyboard-build/classic-keyboard-build.md

@ -29,8 +29,7 @@ I recommend installing the diodes and resistors at ALL switch positions. Doing
1. Finally, flip over the PCB and install the 40-pin connector on the back side
(opposite side from the diodes and resistors).
<img alt="Connector is opposite side fromg the through-hole components"
[[src="images/Connector_on_back.jpg]]
[[images/Connector_on_back.jpg]]
1. It's important that the connector is seated flat to the PCB. To ensure a
properly seated connector, first tack pins on opposite corners of the
@ -50,7 +49,7 @@ I recommend installing the diodes and resistors at ALL switch positions. Doing
1. Install the cherry MX PCB-mount stabilizers onto the PCB.
<img alt="Install the stabilizers" src="images/pcb_mount_stabilizers.jpg" height=50% width=50%>
[[images/pcb_mount_stabilizers.jpg]]
For futaba switches, no standoffs are required between the aligner and PCB,
since the futaba switches provide sufficently sturdy mechanical support.
@ -88,7 +87,9 @@ I recommend installing the diodes and resistors at ALL switch positions. Doing
<details>
<summary>Cherry MX keys</summary>
The keyboard is designed to accommodate PCB-mounted Cherry-MX compatible Spacebar aligner hardware. Most standard aligner kits come with pre-bend rods for a 6.25u spacebar. Since the 8u spacebar in the retro-keyboards, you will need to bend your own rod. I have included some sources for the rods below (1).
The keyboard is designed to accommodate PCB-mounted Cherry-MX compatible Spacebar aligner hardware. Most standard aligner kits come with pre-bend rods for a 6.25u spacebar. Since the 8u spacebar in the retro-keyboards, you will need to bend your own rod. I have included some sources for the rods below.
Be sure to install the stabilizer hardware (except the rod) **before** combining the PCB and the aligner, since there will not be enough room to install the stabilizers once the two are assembled and soldered together.
</details>