Cobblebot Hotend Mount BLTouch Accessory

Customized BLTouch addon for the Cobblebot Hotend Mount by irononreverse: http://www.thingiverse.com/thing:932645

V3 has better positioning. Offset for the BLTouch to the hotend is at the bottom of this summary.

You can see this youtube video to see it in action.

These are my adventures in configuring my BLTouch for use on my Cobblebot using Marlin 1.1.0-RC. There doesn't seem to be much information on this so I hope this is useful to some. It is still a work in progress and I may change parts of this. Right now my configuraton is working with these changes.

Here is a link for guidance on getting the firmware to save the new autoleveling matrix: http://3dprintboard.com/showthread.php?8064-Saving-G29-Bed-Level-Correction-Matrix-to-EEPROM

Where to get the BLTouch mounts for the Cobblebot: http://www.thingiverse.com/thing:1162259 http://www.thingiverse.com/thing:932645

Want to contribute $5 towards my work? https://paypal.me/timeshell/5

In Configuration.h:

1. Invert Z min

• const bool Z_MIN_ENDSTOP_INVERTING = false;

1. Enable servo and set endstop angles to the S codes provided by BLTouch:

• #define NUM_SERVOS 3
• #define Z_ENDSTOP_SERVO_NR 0
• #define SERVO_ENDSTOP_ANGLES {{0,0}, {0,0}, {10,90}}

1. Enable AUTO_BED_LEVELING_FEATURE and Z_SAFE_HOMING:

• #define AUTO_BED_LEVELING_FEATURE // Delete the comment to enable (remove // at the start of the line)

• #define Z_SAFE_HOMING

• // Set these appropriately for the size of your printer

• // These are set for my Cobblebot basic

• #define LEFT_PROBE_BED_POSITION 15

• #define RIGHT_PROBE_BED_POSITION 250

• #define FRONT_PROBE_BED_POSITION 20

• #define BACK_PROBE_BED_POSITION 250

• // Set the number of grid points per dimension.

• // You probably don't need more than 3 (squared=9).

• #define AUTO_BED_LEVELING_GRID_POINTS 4

1. Check your BLTouch sensor offset to your extruder!! (These settings are for the Cobblebot Hotend Mount by Irononreverse on thingiverse)

• #define X_PROBE_OFFSET_FROM_EXTRUDER -39 // Z probe to nozzle X offset: -left +right
• #define Y_PROBE_OFFSET_FROM_EXTRUDER -22 // Z probe to nozzle Y offset: -front +behind
• #define Z_PROBE_OFFSET_FROM_EXTRUDER -1.6 // Z probe to nozzle Z offset: -below (always!)

Print Settings

Printer:

Cobblebot

Rafts:

Supports:

Doesn't Matter

Category: 3D Printer Accessories