Me too: Must home axis first: 0.000 0.000 5.000 [0.000]
Just gave my rat another chance, updated and voila. I have benn trying now for 3 hours straight to get around it, searched the web and all the topics here. For some reason the solution seems to be a well guarded secret. So, how do I unlock it?
As all the others said, setting the kinematic position manually works, followed by G28. But even if I write the kinematic override into an override of the sensorless_homing_macro, I run into that error. So manual works, anything todo with the macro doesn't. And, no, I am not willing to upgrade to ratos2.1 for all the work it takes. I would rather go straight Klipper then.
So, I would highly appreciate any help to get the idea how this 100 Kg chunk of metal gets to work again.
7 Replies
This bug is fixed in 2.1. The only 'solution' I found was updating to the latest RatOS. If you are unwilling to do that, then by all means you could go straight klipper. Much less work to update to 2.1 I think over going straight klipper.
Well, thanks for this opinion, but, mehhh, no. There must be an easier solution. This thing is heavily modified and takes ages to set up again (mainly due to lost specific knowledge on the printer). Honestly, it should actually be as easy as to insert the set_kinematic_position command into the code for homing at the right place. There is no reason that it cannot carry out a macro that can be entered manually just because the code was too complex by the programmers to maintain.
Well, mehhh, you do you then - I'm sure you'll figure it out. Wasn't worth it in my case to spend lots of time figuring out how to get an outdated version of RatOS/klipper to behave properly. Good luck!
yeah, I am with you. No idea what of all the variants is more of a waste of time for basically... nothing.
Hey guys. I just ran into the same issue. Did you ever find a fix other than upgrading to 2.1?
@huskyte
yes, the cleanest and most easiest way was to install Klipper 😉
Never looked back
I finally found a solution / workaround...
in /ratos/homing.cfg I set....
z_hop: 0
(before it was 15).
...and now I can home like before.
inspired by https://github.com/Rat-OS/RatOS/issues/179
hope it helps someone!
@huskyte