Longer LK5 PRO IMU + BL touch support
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This is a support for an ADXL345 V2.0 and a GIANTARM Geeetech 3D Touch Sensor V3.2 to mount on the Longer LK5 Pro
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Summary
This is a support for an ADXL345 V2.0 and a GIANTARM Geeetech 3D Touch Sensor V3.2 (BLTouch-compatible) to mount on the Longer LK5 Pro.
Designed for a Longer LK5 Pro running Klipper — see the project here: Klipper firmware.
What’s Included
Mount for:
ADXL345 V2.0 accelerometer
GIANTARM Geeetech 3D Touch Sensor V3.2 (BLTouch-compatible)
Cable management path sized for a UGREEN USB-C → USB-A cable
Build Volume Impact — Warning
Installing this mod reduces X-axis printable width by ~60 mm.
Hardware & Links
3D Touch / BLTouch (GIANTARM Geeetech V3.2): Amazon Link
ADXL345 V2.0: Amazon Link
UGREEN USB-C → USB-A cable: Amazon Link
Links are for Amazon.es, I am not affiliated with any brand, this is just what I bought for my system
Print Settings (recommended)
Orientation: print upright (see image below)
Infill: 60% Cubic / 3D Cubic
Layer height: 0.20 mm (or finer for best fit)
Perimeters/Walls: 3–4 (for stiffness)
Supports: Required to support the horizontal arm
Material: PETG or ABS/ASA preferred for heat resistance (PLA works if your enclosure/ambient temps are low)
Installation Overview
Heat Inserts: Add heat inserts to the 4 holes at the top of the larger part for the cap to screw on and hold the cable tight to minimize vibration interference.
Pre-fit the ADXL345 and 3D Touch to the printed mount (check screw lengths and clearances).
Cable routing: connect the UGREEN USB-C → USB-A and screw on the cap securely.
Mount to carriage: align the bracket on the Longer LK5 Pro head and fasten carefully (do not overtighten into plastic).
Wiring & strain relief: ensure the probe and accelerometer cables have slack across the full X travel.
Re-square & re-calibrate: because X travel changes, verify endstops, offsets, Z-offset, and bed mesh.
Notes & Disclaimers
Plastic washers are recommended in the bolts that hold the ADCL345, using metal, or no whashers my short something and damage the equipment.
Tolerances may vary by printer, filament, and slicer. Minor sanding or shim washers may help achieve a perfect fit.
Use at your own risk. Check clearances around fans, belts, and the hotend before powering on.
Changelog
v1.0 — Initial release of the mount for ADXL345 V2.0 + 3D Touch V3.2 on Longer LK5 Pro.
Images (placeholders)
Installed view:
