Mount for the BL Touch for the Ender 3 and similar probes and machines
This wing is designed to hold a BL Touch in position for the Ender 3, and all other printers with similar X-carriage (many Tevo's, CR-10, etc.).
It is specially designed to allow access to the hotend without having to dissamble the BL Touch every time. You can reach the 2 screws without any problems.
Print the three parts
Mount the BL Touch to the holder
Start screwing the bolts
Before you finish screwing the bolts, insert the shim, finish screwing the bolts
- If the extended BL Touch doesn't reach the bed before the nozzle does, or it's too close, place the 2mm thick spacer between the holder and the probe.
- 2x M3 bolts at 10mm length (the original ones are 8mm length)
- X axis: 51.112mm to the left
- Y axis: 8.300mm to the front
#define X_PROBE_OFFSET_FROM_EXTRUDER -51
#define Y_PROBE_OFFSET_FROM_EXTRUDER -8
#define Z_PROBE_OFFSET_FROM_EXTRUDER 0
Z-Offset depends on your particular machine and hotend and can even change with nozzles. You'll need to calibrate your own Z-offset.
Your Z-Offset should be negative, meaning the probe (when the prong is extended) is touching the bed before the nozzle does.
If your Z-Offset is zero or positive, it just won't work, because the nozzle will push the bed down, and the "measurement" will be meaningless. For that, print the "BL Touch 2mm spacer.stl" and use it as a spacer as needed. You can scale the spacer in the Z dimension (non-uniform scaling) to suit your needs.
A typical Z-offset is about -2.0mm. The probe should be down enough so will hit the bed before the nozzle, and up enough so it won't enter in contact with the printed part.
- 3D Touch by Triangle Labs (AliExpress)