Upgrade BLTouch for Scalar 3D Printers

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Upgrade BLTouch pour imprimantes Scalar

BLTouch sensor

BLTouch CADThe BLTouch sensor is able to sens the proximity of any print surface.

This sensor needs to be placed vertically as it’s partially using gravity for it’s sensor to go down.

It is equipped with a self and a small pin capable of going down and going up.

BLTouch DimensionsThe sensor is also equipped with some electronics and is able to detect if any error happens or if the pin is locked or stuck to something.

It’s driven using a standard Servo output and it needs +5V to be powered on.

This sensor is capable of deploying itself more than 2mm from it’s closed state. In order to operate the best way possible, you need to place it so that the pin level in closed state is about 2mm from the nozzle.

 

 

Specifications

Performances


Plastic parts

All the plastic parts needed are available on our Thingiverse


Wiring

BLTouch wiring on Ramps 1.4

  • The 3 pin connector is to be connector to the Servo 0 outputs of the ramps

Brown wire is oriented toward the outside of the board and the  Yellow Wire toward the inside of the board

  • The 2 pins connector is placed on the  « ZMIN » end stop input pins.

The white wire is placed toward the outside of the board, and the black wire is connected toward the inside on the middle range of pins.

Avoid any polarity issues and properly respect the wiring schematic here!!

Add a jumper to power up your BLTouch


Firmware changes for Official BLTouch (Antclab) probe

The changes are to be made inside « configuration.h » file of Marlin Firmware

You can download an existing firmware that fits your printer from this page

The example below are made using Marlin RC8 firmware and won’t apply to any previous versions

 


Firmware for BLTouch Clones

The changes are to be made inside « configuration.h » file of Marlin Firmware

You can download an existing firmware that fits your printer from this page

The example below are made using Marlin RC8 firmware and won’t apply to any previous versions