Adafruit adxl board changed size (#613)

* Address issues found by PineappleTuesday

* Fix IGUS mount for GY-291 and change file names for clarity

* Change Adafruit to reflect new CAD

https://learn.adafruit.com/adxl345-digital-accelerometer/downloads

printer_mods/richardjm/adxl-chain/README.md

@@ -24,13 +24,13 @@ Clearance cad check for Adafruit board.
 ### ADXL345 GY-291 board (21mm by 16mm)
 - ADXL345 GY-291 board (21mm by 16mm)
 - M3x6 BHCS
-- M3 nylon/Printed washer (optional)
+- M3 nylon/Printed washer
 - M3 Threaded Insert * 3 or 5 (IGUS or Generic)
 
-### Adafruit ADXL345 board (1in by 0.8in)
-- Adafruit ADXL345 board (1in by 0.8in)
+### Adafruit ADXL345 board (0.95in by 0.75in)
+- Adafruit ADXL345 board (0.95in by 0.75in)
 - M2.5x6 BHCS (threads into plastic)
-- M2.5 nylon/printed washer (optional)
+- M2.5 nylon/printed washer
 - M3 Threaded Insert * 2 or 3 (IGUS or Generic)
 
 ## Ideas that didn't work
@@ -41,3 +41,10 @@ Clearance cad check for Adafruit board.
 - Attempting to not move the drag chain mounting up the motor doesn't give clearance as X approaches 0 for the board, it's too close to the bottom of the motor.
 - Flipping the drag chain mount so it's level with the top of the motor instead of moving it up just makes the radius of the drag chain tighter and more awkward to fit.
 - Trying to use threaded inserts for the Adafruit board would make the edges too thin
+
+## Changes
+2022-02-04 - Addressed issues with Adafruit mount identified by PineappleTuesday
+2022-02-04 - Also fixed issue with IGUS end chain and mounting screw
+2022-02-08 - Updated Adafruit with new cad - now 0.95in by 0.75in
+
+discord:whistlinric