document the chosen Hammond box

[web/gag.com] / homeshop / cncfpga / index.mdwn

diff --git a/homeshop/cncfpga/index.mdwn b/homeshop/cncfpga/index.mdwn
index 976f3c6feb638f75c5cf0e747901a6e7cd1e0ea0..2f847d512b91f697b18d74535054d2111df92cc9 100644 (file)
--- a/homeshop/cncfpga/index.mdwn
+++ b/homeshop/cncfpga/index.mdwn
@@ -28,7 +28,7 @@ And here's a photo of one of them loaded:
 * dual-color LED, green when PC heartbeat present, red when not
 * green LEDs on each of the three power supply rails
 * RC low-pass filtering on all input pins
-* 5.1 x 2.5 inch 4-layer board 
+* 5.1 x 2.5 inch 4-layer board, fits in Hammond 1590P1 die-cast aluminum box
 
 ### Developer View ###
 
@@ -45,6 +45,14 @@ And here's a photo of one of them loaded:
 The design files can be found on [git.gag.com](http://git.gag.com) in the 
 project [hw/cncfpga](http://git.gag.com/?p=hw/cncfpga;a=summary).  
 
+## Issues ##
+
+Notes about things learned or observed during debugging:
+
+* The RC networks for the input pins are closer to the stacked 15-pin 
+  connectors than I'm really comfortable with.  Nothing is making contact or
+  shorting, but I'd be tempted to increase the spacing on a future board cut.
+
 ## Future Plans ##
 
 As of late December 2011, the first prototype v0.1 board has been loaded and