Add High Profile 5x3 Tented Case

High Profile 5x3 Tented Case/README.md

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+# High Profile 5x3 Tented Case
+
+This is a high-profile case with outer column removed (5x3).
+
+### A Note on Choc Switches
+
+The design has been tested with both Kailh Choc and MX switches. However, the 
+post heights should be made taller if you intend to use Choc switches. I
+recommend raising the posts to 3mm.
+
+## Images
+
+![kyria 5x3 tented mx both halves](./kyria_5x3_tented_mx_both_halves.png)
+![kyria 5x3 tented mx left](./kyria_5x3_tented_mx_left.png)
+![kyria 5x3 tented choc both halves](./kyria_5x3_tented_choc_both_halves.png)
+![kyria 5x3 tented choc left](./kyria_5x3_tented_choc_left.png)
+![kyria 5x3 tented choc right](./kyria_5x3_tented_choc_right.png)
+
+
+## Hardware
+
+|Qty|Description|Recommended|
+|---|-----------|-----------|
+|10 |M2 heat-set inserts| [McMaster-Carr](https://www.mcmaster.com/94180A307)|
+|6  |M3 hex nuts        | [McMaster-Carr](https://www.mcmaster.com/93187A100/)|
+|6  |Tenting legs       | [ZSA](https://ergodox-ez.com/products/tilt-tent-kit?variant=16101844419)|
+|2  |1.5mm Top plates   | [Ponoko](https://ponoko.com), [SendCutSend](https://sendcutsend.com)|
+|10 |10mm screws        | [eBay](https://www.ebay.com/itm/372740232201)|
+
+## Tenting Legs
+
+The Fusion 360 file includes printable tenting legs. However, I do not recommend them.
+I recommend the ZSA tenting legs due to their superior stability and rubberized tips to prevent
+sliding on the table. The ZSA legs have no issuses with slipping in any tenting/tilting angle.
+
+## Assembly
+
+1. Print the left and right cases.
+1. Using a soldering iron with a heat-set insert tool, press the insert in to the
+6 posts on the bottom inside of the case. They should sit flush with the top of the
+post.
+1. One at a time, insert a hex screw into the cutout on the inner wall of the case.
+Using a slodering iron with a fine tip, press on the edge of the nut until one side 
+slightly sinks in to the case. Move the tip to the opposite side of the nut and 
+continue pressing until the nut is inset slighty below the edge of the case wall. 
+Do not make it flush.
+1. Once cooled, place your finger over the the nut. With your other hand, insert 
+the tenting leg and screw it in. You will need to tighten the nut sufficiently to
+grip the plastic of the case. You may want to use an allen key but don't overdue it.