Voron 2.4 with Duet 3 + Toolboard + TAP

Input Shaping (Resonance Compensation) Guide

Summary

Input Shaping helps eliminate ringing/ghosting on print walls, compensate for mechanical resonances in belts, motors, and the frame, and increase speed and acceleration while maintaining print quality.

Requirements

Voron 2.4 with Duet 3 6HC/Toolboard combo
Toolboard-mounted accelerometer (configured as shown below)
Latest RepRapFirmware (3.5+ recommended)

Steps

Step 1: Make Sure Accelerometer is Set Up

Ensure your `config.g` includes:

M955 P121.0 I20  ; Toolboard accelerometer on SPI

Test connection:

M955

Expected response: `Accelerometer on board 121, SPI channel 0`

Step 2: Run Resonance Test Macros

Use the following macros:

resonance_test_x.g: Run X-axis vibration test
resonance_test_y.g: Run Y-axis vibration test

Download these macros from the provided link.

Step 3: Download and Analyze Data

After each test: 1. Go to DWC (Duet Web Control). 2. Look under Jobs and download the `.csv` file. 3. Analyze the file at: https://accelerometer.jyers.dev/ or use Duet Python tools.

Step 4: Set Input Shaping (M593)

Based on analysis (you'll get a graph of resonances), set shaper:

M593 P"mzv" F45 S0.1

Add this line to `config.g`.

Step 5: Test and Adjust

Run a test print (e.g., speed tower) to check:

Straight walls
No ringing/ghosting

Adjust the `F` value (frequency) in `M593` as needed and re-test.

Example config.g Line After Tuning

M593 P"mzv" F45 S0.1  ; Example frequency

Bonus Tips

Once tuned, you can increase accelerations safely:

M201 X8000 Y8000 Z350 E2000  ; Example accelerations

You can also explore other shapers (like `ei3`, `zvdd`) if needed.

Download Pre-Made Macros

Download `input_shaping_macros.zip` from the provided link.