ATREUS


Build Log: Atreus Deck (continued)

2020-02-02

After reading about SD cards a bit on the Armbian site, I ordered a couple "Application Class" 32GB SD cards; these should provide better performance as well as much higher levels of durability, tho 32GB is massive overkill for what I'm expecting to need.

Parts for mark V spread out

Parts for mark V spread out

Started construction on the Mark V; so far very few changes from the Mark IV. I did realize that the Pine64 board I got last time was not the main "A64-LTS" one but some earlier build. The main difference is that this one is powered by a barrel charger and has power and reset buttons prepopulated, so I adapted my switch plate to make room for these as well as the heat sink I should have accommodated on the Mark IV but ignored.

Keyboard switches soldered in

Keyboard switches soldered in

Till we get to the screen and battery, the construction of this one is just like the Mark IV, except this time I remembered to flip the flag in the case code to emit an Alps-compatible switch plate instead of Cherry, so I'll be using Matias Quiet in this build. The switch holes do feel a bit loose, so I'll want to tighten the dimensions up before I build another.

2020-02-03

Mark V operational but with battery unattached

Mark V operational but with battery unattached

It's working with the battery and display just sitting on top, but I still don't really have an idea for how to do this any better than the previous build, other than a vague idea that it might be easier to mount the battery on the right if the display is on the left side.

2020-02-05

A screw hole holding the battery pack in place

A screw hole holding the battery pack in place

I had the idea that drilling a hole in the battery pack would allow me to attach it to the chassis. Taking off the aluminum case of the battery pack, I saw that it would be easier to drill the hole in the internal plastic casing than the outer aluminum shell, so I put a hole in between two of the batteries. One screw hole definitely isn't enough to make this sturdy, so I added a rubber band as well; with the current switch plate a second screw hole in the battery case wouldn't have anywhere to connect on the chassis, but that's something to add in the next revision.

Mark V in use with no screen bracket

Mark V in use with no screen bracket

At this point the only thing that's missing for this build is a bracket for the screen. The screen came with some standoff screws that I can insert into the higher two screw holes to angle it, and I can set it on top of the left side of the chassis when I'm sitting, but it's far from being sturdy. I think for a bracket I'll first have to cut a base layer which would be attached above the Pine64 and offer mounting points for a bracket of two triangles to support the screen at an angle.

Back view of the display held by hand

Back view of the display held by hand