Am8 X Carriage and Precision Piezo 20 Combination Remix

thingiverse

This project combines the Precision Piezo20 Hotend Z Probe Groovemount with the Customizable E3D V6 Carriage, designed by TNS. I customized the X Carriage to fit my AM8 printer and integrated the Piezo20 Groovemount into it. My setup utilizes a Teensy LC instead of the Precision Piezo PCB. Additional files will be uploaded, including pictures and source code for the Teensy LC. The success of this project on the Teensy LC can be attributed to its single 5v output, which I connected directly to the signal wire of my Ramps 1.4 board. If any issues arise from the electronics side, it's likely due to my inexperience as a hobbyist, rather than a professional. I chose the Teensy LC for this project because I already had some on hand and needed an accurate z probe. I've experienced inconsistent results with inductive sensors, capacitive sensors, and the BL Touch in the past. My standard deviations are approximately 0.03mm, which I consider to be quite satisfactory. Here's my latest accuracy test: Recv: Mean: 0.007888 Min: -0.020 Max: 0.027 Range: 0.047 Recv: Standard Deviation: 0.013068 Update: The Teensy LC code and wiring schematic have been uploaded. I've also included a top plate with an enlarged hole to accommodate pneumatic connections, which can be screwed in using a rework station hot air gun to warm up the metal. Please feel free to improve this project if you're able. I'm not a professional, but rather a hobbyist looking for guidance. Update: Two pictures of my installed printer have been uploaded, showcasing the probing system's performance. It works seamlessly for me, with no issues reported. The only drawbacks I've encountered so far are occasional false triggers and head crashes caused by a dirty nozzle. The first issue can be resolved by adjusting acceleration and homing speeds or tweaking the sensor sensitivity in the *.ino file. However, this may require some trial and error to get right. My current settings are as follows: Z max Velocity: 10mm/s Z max Acceleration: 200mm/s Z Jerk: 0.2mm I'm running Marlin 1.1.9 on a Ramps 1.4 board. The second issue can be mitigated by regularly cleaning the nozzle during warm-up, ensuring it remains hot and free of blobs or strings.