add more pictures of the second prototype

doc/TinySpHEAR_zapnspark.md

@@ -5,9 +5,33 @@
 
 The TinySpHEAR microphone is a traditional 4 capsule tetrahedral first order Ambisonics microphone. This improved design adds four printed circuit boards with Zapnspark phantom power interfaces housed in the microphone body. A trailing cable ends in four XLR connectors. The picture shows the full design as previewed in OpenSCAD and a picture of the second prototype (built with Primo EM182 10mm capsules, 9.6mm microphone radius).
 
-
 <img src="pictures/TinySpHEAR_zapnspark.png" width="400">
 
+The 3D models also include a shock mount that clips into a standard microphone stand mount. The two main model files are tuned for [EM182](../master/TinySpHEAR_EM182.scad "TinySpHEAR for 10mm EM182 capsules") (10mm) and [EM200](../master/TinySpHEAR_RM200.scad "TinySpHEAR for EM200 capsules") (14mm) capsules. Uncomment the different "render_" lines to render different parts or the complete microphone assembly. 
+
+A few more pictures detailing the assembly process:
+
+Wiring the capsules:
+
+<img src="pictures/TinySpHEAR_zapnspark_1.png" width="600">
+
+Connecting the capsules with the printed circuit boards:
+
+<img src="pictures/TinySpHEAR_zapnspark_2.png" width="600">
+
+Sliding the printed circuit boards into the slots in the body:
+
+<img src="pictures/TinySpHEAR_zapnspark_3.png" width="400">
+
+Connecting to the 4 conductor cable:
+
+<img src="pictures/TinySpHEAR_zapnspark_4.png" width="400">
+
+Ready to test:
+
+<img src="pictures/TinySpHEAR_zapnspark_5.png" width="400">
+
+The full microphone including the shock mount:
 
-The 3D models also include a shock mount that clips into a standard microphone stand mount. The two main model files are tuned for [EM182](../blob/master/TinySpHEAR_EM182.scad "TinySpHEAR for 10mm EM182 capsules") (10mm) and [EM200](../blob/master/TinySpHEAR_RM200.scad "TinySpHEAR for EM200 capsules") (14mm) capsules. Uncomment the different "render_" lines to render different parts or the complete microphone assembly. 
+<img src="pictures/TinySpHEAR_zapnspark_6.png" width="400">