more BOM

README.md

@@ -104,7 +104,32 @@ Hopefully to come:
 
 This is a general BOM. For How to Make Almost Anything coordinators, CBA will coordinate ordering material. Section Heads should order HDPE sheets (below, in Material section) to be delivered to their labs, and if shopbots are not 4x8' size, change for 4x4' sheets. You should also make sure you have the right tools in your shops; I've included a list of useful or rare items here as well. 
 
-## Hardware for One NEMA23 Motor, 0.375" HDPE
+## For Section Heads
+
+### Material
+
+What | QTY | Link
+--- | --- | ---
+HDPE 3/8" / 0.375" | 1-2 Sheets | [McMaster](https://www.mcmaster.com/8619k438)
+PLA for 3D Printing | < 1kg | [My Favorite](https://www.matterhackers.com/store/l/pro-series-natural-pla-filament-1.75mm/sk/MACKAE6L)
+
+### Tools
+
+What | Where Used | Link or McMaster
+--- | --- | ---
+Onsrud 1/8" Upcut Spiral Super-O | Milling HDPE Like a Dream | [Blackhawk Industrial](https://www.bhid.com/itemdetail/ONSCUT%2065-013)
+M3 Tap | Extensively for Aluminum Parts | 2673A71
+M5 Tap | Extensively for Aluminum Parts | 2673A74
+M6 Tap | Shoulder Bolts | 2673A75
+Countersink Bit | Flush Mounting | 27535A48
+Hex Driver Set Metric | Cannonical | 5709A18
+Torx Driver Set | Nice, Not Necessary | 6370A1
+Torx Drill Driver T15 | Wonderful to have for Chassis; No. 6 Button Head Screws | 7396A42 
+Torx Drill Driver T10 | For Flat-Head No. 6 Screws | 7396A41 
+
+## The Rest of It
+
+## Hardware for One NEMA23 Axis with 0.375" HDPE
 
 Type | Size | QTY | Where Used | McMaster PN
 --- | --- | --- | --- | --- 
@@ -149,27 +174,6 @@ DC Power Terminal | M3 Stud Terminal 18-20AWG | 20 | 277-11144-ND
 18AWG Hook-Up V++ | 18AWG Stranded with Silicone Jacket, Red | 100ft | CN101R-100-ND
 Zip Ties | ~ 6" | 250 | Q731-ND
 
-## Material
-
-What | QTY | Link
---- | --- | ---
-HDPE 3/8" / 0.375" | 1-2 Sheets | [McMaster](https://www.mcmaster.com/8619k438)
-PLA for 3D Printing | < 1kg | [My Favorite](https://www.matterhackers.com/store/l/pro-series-natural-pla-filament-1.75mm/sk/MACKAE6L)
-
-## Tools
-
-What | Where Used | Link or McMaster
---- | --- | ---
-M3 Tap | Extensively for Aluminum Parts | 2673A71
-M5 Tap | Extensively for Aluminum Parts | 2673A74
-M6 Tap | Shoulder Bolts | 2673A75
-Countersink Bit | Flush Mounting | 27535A48
-Hex Driver Set Metric | Cannonical | 5709A18
-Torx Driver Set | Nice, Not Necessary | 6370A1
-Torx Drill Driver T15 | Wonderful to have for Chassis | 7396A42 
-Torx Drill Driver T10 | For Flat-Head No. 6 Screws | 7396A41 
-
-
 # FNs
 
 [^1]: Typically, CNC Machines - but ambitiously I would like to include most of robotics and automation here as well.