CR-10 / Ender Hotend stock fan shroud with ezabl mount

thingiverse

I recommend using ABS or PETG for any hotend parts. I printed with PETG at a 0.08mm layer height, and I did use support, but it's essential to manually remove internal support from inside the fan shroud. Make sure you place manual supports around the EZABL mount. I created a file for the 18mm EZABL kit offered by TH3D Studios, but it's untested at this time. However, I was able to print the EZABL Mini and it works fine. Installation: Remove the fans from the hotend shroud and save the stock shroud as a backup. Place the new shroud over the hotend and slide the ear over the corner of the X carriage. Then place the bottom screw on the left front side, leaving it slightly loose. Next, install the second screw from the back side of the X carriage once started, tighten both screws. You can then mount your fan using M3x25 button screws. To mount the EZABL sensor, I recommend preheating and leveling the bed first. Then, with a sheet of cardstock between the bed and hotend, insert the EZABL sensor with a 2 or 3mm Allen wrench below it as a spacer. Carefully tighten the nuts with lock washers between the nut and the EZABL mount. After that, move the hotend up about half a millimeter and use a precision screwdriver to adjust the potentiometer until the light turns on and stays on but goes off if you move it up another half millimeter or less. Once the EZABL Mount is installed, you'll need to update your firmware. Please note that you do this at your own risk; I am not responsible for any issues caused by flashing your firmware and will not advise you on how to do so. Within the TH3D firmware, you'll need to set the offset for your sensor to custom and go to the configuration.h tab about 80% of the way down. There is a section for custom probe settings that needs to read as displayed below: #if ENABLED(CUSTOM_PROBE) #define EZABL_ENABLE /** * Z Probe to nozzle (X,Y) offset, relative to (0, 0). * X and Y offsets must be integers. * * In the following example, the X and Y offsets are both positive: * #define X_PROBE_OFFSET_FROM_EXTRUDER 10 * #define Y_PROBE_OFFSET_FROM_EXTRUDER 10 * * +-- BACK ---+ * | | * L | (+) P | R <-- probe (10,10) * E | | I * F | (-) N (+) | G <-- nozzle (0,0) * T | | H * | (-) | T * | | * O-- FRONT --+ * (0,0) */ #define X_PROBE_OFFSET_FROM_EXTRUDER 47 // X offset: -left +right [of the nozzle] #define Y_PROBE_OFFSET_FROM_EXTRUDER -3 // Y offset: -front +behind [the nozzle] #endif The final step after updating the firmware will be to set your Z offset. To do this, preheat the bed and hotend, then home all axes. Move the probe -47 on the X and +3 on the Y. Then move the nozzle down to meet the bed 0.01mm at a time over a piece of paper until the paper stops moving. The value listed as the current Z position needs to be placed in the Z offset from the control menu, under Motion. Please note that some fine-tuning may need to be done to achieve a perfect first-layer height; this can be done by babystepping the Z height in the tune menu. With ABL, I recommend allowing a little extra height on the first layer as there can be some inconsistencies. For example, I print with a layer height of 0.08mm but set my first-layer height to 0.2mm.