New to this, hotend rams into side

General Discussion
1

Basic Information:

Printer Model:
Ender 3
MCU / Printerboard:
SKR Mini v1.2
klippy.log

https://termbin.com/2f2c

Describe your issue:

I tried to follow the manual on the site as good as I can. I thought I was getting this done right. But then I ran into this.

When I query the endstops, they are all open. When I press one, it says triggered. That’s great. But now when I home, It rams the hotend right into the left extrustion and wont stop moving into it, making a ton of noise. I have no idea what to do, I really hope someone can help me. I’m sure something is wrong, I just don’t know what.

2

Are you sure that your carriage, bed, whatever is physically hitting the endstop when homing?
Is that problem existent on all axes?

3

If one axis moves into the wrong direction, i.e. away from the endstop, then you need to invert or un-invert the respective dir_pin (add or remove the ! before the pin)

E.g. modify

dir_pin = !PB12

to

dir_pin = PB12
4

Ohhhh no you got to be kidding me…

I used a tie wrap to redo the cabling, but put the cables on the (from the front) left side of the hotend.

It’s not touching the endstop… I spend a week trying to figure out what’s wrong. This was so obvious, yet I totally failed to check this.

Thank you for pointing it out. I can’t believe I made this mistake.

1 Like
5

Thanks for the tip. Royce solved this for me. Turns out that the problem was between the keyboard and the chair. Not a Klipper issue but an OSI layer 8 issue.