Z-Axis Induction Sensor & Fan Bracket for MK7 type extruders (Folger Tech)

thingiverse

A simple bracket designed specifically for holding an Induction Sensor on MK7 type extruders, facilitating seamless auto bed tramming/leveling on aluminum build plates. The system has been upgraded with a new version that allows for attachment of a 40mm fan to the opposite side of the bracket. Power requirements have been reconfigured; the extruder fan now connects directly to the 12v power supply, while the print fan is connected to D9 on the Ramps board. This modification enables users to control the print fan via their slicer software. **Printing Instructions** For optimal results, print this part in ABS. The earlier PLA versions performed adequately due to proximity to the fan, but ABS provides better thermal management. * Utilize 100% fill settings for added strength. * Installing 3mm nuts helps maintain the bracket's position near the fan and away from the heat sink, although this step is optional. **Folger Tech Prusa i3 Notes** This information specifically pertains to users of Folger Tech Prusa i3 printers; it may not apply to other printer models. Thomas Sanladerer's comprehensive guide on YouTube serves as an excellent starting point for beginners. * Configure your end stops according to the provided instructions: + Y-axis (Front) + X-axis (Left) This adjustment reverses the build direction. * Update the Marlin Configuration.h file by adding or modifying the following lines: ``` #define LEFT_PROBE_BED_POSITION 50 #define RIGHT_PROBE_BED_POSITION 190 #define BACK_PROBE_BED_POSITION 160 #define FRONT_PROBE_BED_POSITION 10 #define X_PROBE_OFFSET_FROM_EXTRUDER 40 #define Y_PROBE_OFFSET_FROM_EXTRUDER -10 #define Z_PROBE_OFFSET_FROM_EXTRUDER 0 ``` * In newer Marlin builds, a safety check ensures probing is within the printer's range. However, users with Folger Tech i3 setups must comment out or remove this section due to their unique endstop configuration. * On firmware versions prior to Marlin 1.0.2 (approximately lines #436 through #457), look for the "The X axis probing range is not enough" sections and adjust accordingly to avoid compile errors.