Anycubic Kossel BLTouch V2.0 (and new effector) by 8SquareFeet

Last crawled date: 3 years, 1 month ago

This is sort of an update for my original BL Touch probe mount on the Anycubic Kossel. But like most things in life, it ... evolved.
In the end, it required a few new parts.
The previous version is:https://www.thingiverse.com/thing:2251115
NOTE:
This will NOT fit the stock hot end. The stock hotend is 25mm in diameter. The hotends that I am using are ~22.25mm.
This is the hotend that I'm using:https://www.amazon.com/gp/product/B010MSTVZO/ref=oh_aui_detailpage_o06_s01?ie=UTF8&psc=1
Also, this update also requires the use of a new effector plate.
Basically, to get the BL tucked in closer to the hot end (gaining back printing area), I had to move the hot end under the effector. So.... this update includes a new effector plate, new clamp, and new cooling duct. The effector has mounting holes for the BL.
The plate is connected to the rods using captive nuts. I have not had to make any significant changes to the rod configs in the firmware.
The BL is pretty close to the hotend, but it has not had shown any issues being that close.
All of these parts are printed in PLA and I've seen no issues with melting etc at this point. I have been printing a LOT of PETG lately up around 250, and have not had any problems yet. But you may want to print these in ABS or PETG or other high temp filament of your choice.
I'm using two 30mm fans for cooling (one for the hotend, one for part cooling) and have not had issues.
These are the basic settings I'm using for the hotend and the BL:
X_PROBE_OFFSET_FROM_EXTRUDER +0.4 // X offset: -left +right [of the nozzle]
Y_PROBE_OFFSET_FROM_EXTRUDER -22.6 // Y offset: -front +behind [the nozzle]
Z_PROBE_OFFSET_FROM_EXTRUDER -1.85 // Z offset: -below +above [the nozzle]
You WILL need to redo the Z distance between the print bed and your endstops.
MANUAL_Z_HOME_POS 268.85 // Distance between the nozzle to print bed after homing
DO NOT blindly use these settings!!
You MUST use the correct settings for YOUR machine.
After mounting, manually move the hot end around the printing area and find your limits. You can either adjust your printable area in the firmware, or remember to allow for clearance when placing items to print. I only have a small issue with fan clearance on the right and rear uprights and the glass clamp on the front.
I used supports on everything. But they may not be needed on the plate and clamp. I'm using S3D, so supports are very easy to configure and remove.
The cooling duct will require supports. However, you might be able to print it standing up (laying on the fan mounting face) and get away with no supports. I have not tried this.
The plate was designed with mounting holes for the duct, but I made several changes it, and the mounting tabs don't line up. In the end I just drilled small holes (1.5mm drill bit) in the plate using the duct as a template. The duct is secured using two, 2mm cap screws.
I may redo the part cooling duct to be a little more focused, but so far it seems to be doing a decent job.
The BL mounts using 2mm hardware. I am using two nuts (one on each side) as spacers between the BL and the plate, but depending on your setup you may need more or less spacing.
Be sure to rotate the hotend in the clamp so the heat block is not touching the duct.