Ender 3 S1 ADXL343 Toolhead & Bed Mount

The ADXL343 is a cheaper alternative to the ADXL345 that can be used to tune input shaping with Klipper. While it's a drop in electrical replacement for the ADXL345, the ADXL343's board has a different mounting hole layout. This mount is remixed from an ADXL345 mount with the appropriate spacing adjustments.

Shopping List

You'll need a few fasteners for this:

- 2 M3x5x4 heat-set inserts.
- 2 M2.5x3.5x4 heat-set inserts.
- 2 M3x12 screws
- 2 M3x8 screws
- 2 M2.5x6 screws

Printing

I've rotated the STL so that this can be printed without supports although you do lose some dimensional accuracy by doing this. Since the design uses heat-set inserts, this shouldn't matter too much. Use a 0.2mm layer height if printing this way.

If you have difficulty getting the dimensions correct in the default orientation, flip the model so the M2.5 mounting holes point up, add supports and print it that way instead.

Assembly

1. Install the 2 M2.5 heat-set inserts into the holes on the top of the mount.
2. Flip the mount and install the other 2 M3 heat-set inserts in the bottom of the mount.
3. Fasten the ADXL343 board to the top of the mount using 2 M2.5 screws.

To attach to the toolhead:

1. Unscrew the bottom 2 M3 screws from the Sprite extruder (see picture).
2. Line up the mounting holes on the side of the mount and attach the mount using 2 M3x12 screws (the original screws will not be long enough to thread).

To attach to the bed:

1. Slot the mount over the bed.
2. Thread 2 M3x8 screws through the heat-set inserts on the bottom. 
3. Tighten the screws so they grip the bed. Don't over tighten otherwise you may damage the bed.