<p><strong>Description</strong></p><p>I designed this holder to make input-shaper calibration easier on my Creality CR-10.</p><p>The mount clamps directly onto the metal toolhead carriage and holds both:</p><ul><li><p>An ADXL345 accelerometer module</p></li><li><p>A Raspberry Pi Pico</p></li></ul><p>Keeping the accelerometer firmly attached to the toolhead is important for obtaining useful resonance measurements. This design positions the ADXL345 close to the carriage while keeping the Pico and wiring together in one removable assembly.</p><p>After completing the resonance test, the entire mount can be removed without leaving permanent modifications on the printer.</p><p><strong>Features</strong></p><ul><li><p>Designed for the Creality CR-10 toolhead</p></li><li><p>Holds an ADXL345 and Raspberry Pi Pico together</p></li><li><p>Clamp-on installation</p></li><li><p>No drilling or permanent printer modification</p></li><li><p>Rigid accelerometer mounting for Klipper input-shaper testing</p></li><li><p>Removable after calibration</p></li><li><p>Open access to the Pico’s USB connector and wiring pins</p></li><li><p>Compact design that uses very little filament</p></li></ul><p><strong>Required Parts</strong></p><ul><li><p>1× Raspberry Pi Pico</p></li><li><p>1× ADXL345 accelerometer module</p></li><li><p>Jumper wires</p></li><li><p>USB cable for the Raspberry Pi Pico</p></li><li><p>Screws for securing the clamp and ADXL345</p></li><li><p>Printed mount</p></li></ul><p>Check the screw fit before tightening. Hardware dimensions can vary slightly between different ADXL345 boards and CR-10 toolhead versions.</p><p><strong>Recommended Print Settings</strong></p><ul><li><p>Material: PLA, PETG, ABS, or ASA</p></li><li><p>Layer height: 0.20 mm</p></li><li><p>Nozzle: 0.4 mm</p></li><li><p>Walls/perimeters: 3–4</p></li><li><p>Infill: 30–50%</p></li><li><p>Top and bottom layers: 4</p></li><li><p>Supports: Depending on print orientation</p></li><li><p>Brim: Optional</p></li></ul><p>For the most accurate accelerometer readings, print the part with enough walls and infill to make it rigid. The mount should not flex or move during testing.</p><p>Installation</p><ol><li><p>Insert the Raspberry Pi Pico into its holder.</p></li><li><p>Position the ADXL345 on the mounting surface.</p></li><li><p>Secure the ADXL345 firmly with the appropriate screws.</p></li><li><p>Connect the ADXL345 to the Raspberry Pi Pico.</p></li><li><p>Place the clamp over the CR-10 toolhead carriage.</p></li><li><p>Tighten the clamp screws evenly until the mount cannot move.</p></li><li><p>Connect the Pico to your Klipper host using USB.</p></li><li><p>Verify that the toolhead can move through its full X and Z range without the mount or wires hitting the frame.</p></li><li><p>Run the Klipper resonance and input-shaper calibration.</p></li><li><p>Remove the mount after calibration if you do not plan to use it permanently.</p></li></ol><p>Important Notes</p><ul><li><p>The mount must be completely rigid during resonance testing.</p></li><li><p>Secure all wires so they cannot catch on the frame, belts, wheels, or leadscrew.</p></li><li><p>Move the toolhead slowly by hand before running any automated tests.</p></li><li><p>Do not overtighten the clamp, as excessive force could damage the printed part or printer carriage.</p></li><li><p>This was designed around my CR-10 setup. Other CR-10 revisions, toolhead plates, fan shrouds, and aftermarket modifications may have different dimensions.</p></li><li><p>The mount may also fit similar Creality machines, but compatibility has not been confirmed.</p></li></ul><p>Suggested Printables Tags</p><p>CR-10, Creality, ADXL345, Raspberry Pi Pico, Klipper, Input Shaper, Accelerometer, Resonance Compensation, Toolhead Mount, Clamp Mount, 3D Printer Upgrade, Vibration Calibration</p>