When I installed the bltouch it seems to have messed up my auto home, now my carriage and bed seems to see roughly middle of the path axis’ as home. Is this something I change after? The bl touch install literature is horribly lacking explanation
And the YouTube videos aren’t helpful either as they all avoid anything but the actual connections
I"m not sure what you mean by “middle of the path axis’” Are you saying it stops in the middle of the the bed? (middle of the X and Y travel range?). What is Z doing?
If it’s in the middle, it’s behaving like it thinks you’re using a delta printer, who’s home position is naturally in the middle.
Check your firmware config files to see if there’s a reference to delta printers vs cartesian.
I"m just thinking out loud here…
How is it finding the middle? It must be going to the limit switches first, otherwise the controller would have no idea where the middle actually is.
I’m still thinking that it thinks it’s delta printer. Did you check for that in the config files?
The only other thing would be the home offsets, but those that would be one hell of a coincidence for all three of them to be set to something that just happens to be mid-range for each of them.
I don’t know. Check the config file for “delta” references, or if not “delta”, that perhaps “cartesian” is disabled by default. Nothing else makes sense.
First I fixed my tmc error by correcting that firmware with
Ender-5 Pro- Marlin2.0.1 - V1.0.1 - Endstop.bin
Then I installed the bltouch on the gantry, I disconnected the case fan, disconnected the z stop, and the screen,
I installed the pinboard, then installed the screen into it, I then installed the 3 prong bltouch lead,
I installed the 2 prong lead from bltouch into the zstop connector, and re installed the fan
Closed the case and inserted the SD card and turned on printer.
The firmware used was
V4.2.2-ender-5 pro-32bit mainboard-marlin2.0.1-v1.3.1-bltouch.bin
My bl behaves the exact same way. It “homes” to the middle of the build plate. In my case as the bl touch is on the left side of the nozzle if it homed to 000 the touch probe would be off the bed. Mine homes to the center but the probe points are all spot on.
I assumed this was normal. I am happy this is how it behaves. I don’t need to concern with the probe missing the bed.
Teaching Tech on Youtube has some pretty good videos about installing and properly configuring a BLTouch in the firmware. When slicing, you can also add G code to tell the head to move wherever you want it to during preheat and after auto levelling. Your offsets need to be pretty close and make sure the BLTouch is installed vertically. Many mounts that are printed install it slightly off vertical and make calibrating it a bear.
the teaching tech videos are good and on e other thing is if your X axis is twisted you’ll get shallow and high spots. the BL touch isn’t the nozzle, there is some distance there between them and the x axis can be twisted if the verticals aren’t parallel. this will make the relation between the nozzle and BL touch kind of corkscrew across the x axis.
Figured it out. I had to move in increments at a time, not all at once, storing it inbetween. I was also unaware that a card had to be in the printer to store settings so that helped
Apparently there’s a file on the memory card that the printer uses to configure itself? I wonder how that will work once octopi is controlling everything later this week lol