Calibrating machine guidance
Hello!
I need someone to hold my hand for a bit when calibrating my machine for the first time.
I have finished the "Configurator".
And now i want to press all the blue buttons in order to get my printer ready for printing.
I tried to follow this guide https://docs.ratrig.com/commissioning-guides/v-core-3-1
But when i started the "homing" with the z-tilt, the machine started to make scary noises.
So i thought that i need some help from the forums instead when calibrating my Vcore 3 500 setup.
First problem.
When i tried to Calibrate the PID Hotend i got this error message 'Verify_heater' in docs/Config_Referenace.md.
Basicly my hotend was starting at 150C and was moving downwards instead of starting at room tempeture and rising.
Lets start with this first problem and move along until i finally can print with my setup.
Thank you in advance.
92 Replies
You have the wrong thermistor if the temperature is going down
Imagine that you are helping a child. Where do i change the thermistor and what thermistor should i use?
You might be able to change it in the configurator, otherwise you put overrides in your printer.cfg. where it goes matters - read https://os.ratrig.com/docs/configuration/includes-and-overrides
As for what value to use depends on what thermistor you have and I can't tell you what that is
Includes & Overrides | RatOS
RatOS uses a modular configuration that heavily takes advantage of the config file include and merge logic in Klipper. For this reason, the order of includes and overrides are very important, do not change the order of the configuration unless you know what you're doing.
Thank you. Now it seems to be working with the PID Hotend calibration. I will update this post when i need further questions. One question that i have right away is the z probing calibration. How do i initiate that?
I tried an "Measure Corexy Belt Tension" and got this error message in the concole.
You need to test your endstops
Okay. How do i do that sir?
Is there a button to test the endstops?
Configuring RatOS | RatOS
RatOS only needs minimal configuration to work, but comes with a lot of optional functionality that you can enable manually.
The Endstops seems to be ok? How do i adjust so the bed is level and the nozzle is in the middle, in other words, how do i "home" without breaking anything?
You have to have endstops working to home. Did you read the link blacksmith shared? How did you check that each endstop is working? What commands did you enter in the console?
Im so lost. I read this. Make sure your steppers are running in the correct direction. To do this, center all your axes by moving the carriage and bed manually, With my hand or what?
read the whole page - it is assuming you did the previous steps which has you set the center so you can use the mainsail interface to move around
Well i am trying to click all the blue buttons. I have completed the PID Calibrate Hotend and the PID Calibrate Bed. I do not have any Chamber heater so i am not pressing that one. Next blue button is Measure Corexy Belt Tension and when i press that button i get "No trigger on X after full movement". That's why i am asking about endstops and homing. But i dont know how to home besides the heightmap page but that dosent work so well for me either
Lets make sure your endstops are working. What have you done to verify that?
Are the endstops the microswitches of some sort? Here's a printscreen after testing to press the home button and getting the "No trigger on X after full movement".
oookay. you do need hand-holding. Let me wrap up this meeting and I'll walk you through this.
also please remember this is a community discord with people freely giving their time - so have patience with us as well
@Erik_ Alright, lets get some endstops working.
You were correct that it is the microswitches. One should be at the back of the bed, and the other at the left side of the x-beam
Let me know once you've found them
Great. Thanks for helping me. I only see one switch. Could not see the one behind the bed?
that IS the one behind the bed. Look for one on the moving arm
Ah great! Yes i found the other one now!
Awesome. In the web interface, can you find the console?
Thats the one! Enter
query_endstops
Should get a response like x:open y:open z:open
beautiful
Now with your finger or tape or something, hold one of those switches down and run that command again.
Great, we can trust X and Y now. What z-probe are you using?
I am not sure what you mean with that sir
On the printhead there will be some device that can sense how close it is to the printbed. Did you build this machine or get it from a friend or ...?
I bought it from my friend
There's sensor on the tool head
Can you drop your printer.cfg in here?
And maybe a picture of your printhead
sure
both cfg's?
just the first one there. The other is a dated backup
ok
oh my, thats why it is triggered. It is very close to the bed. Touching, even
yes 😦
okay, someone else may have a better idea but what I would do is turn the machine off, and manually spin the three z shafts to get the bed away from the head. Try to keep it fairly level but it doesn't need to be precise.
Ok
Once you have a few cm gap, turn the machine back on
Done
If you run the query_endstops again, Z should say open and not triggered
yes
The z-probe detects something with iron. Grab something steel around, hold it against the probe, and run the command. (its probably good cause we saw it triggered when close to the bed but we'll do this for completeness)
I dont think i have any steel at home? A kitchen knife?
sure, a putty knife or anything like that would work too
a fork
a screwdriver...
Yea, i see the led lamp acting when i press a spoon against it
Thats a good sign, but we need to know that the printer sees the change. Run the command
meanwhile holding the spoon against it?
It triggered
Excellent. Now that we trust all 3 endstops we can press Home
ah
ok
here goes nothing
It just vibrates
you're not getting any movement?
perhaps i can record it
I haven't seen that in person before but from descriptions I think that is one of your steppers is wired wrong.
Let me see if I can find a guide on how to verify and fix
When my friend who i bought the printer from were here to help me, we manage to home it and do the z preasure test. Everything was good until we were about to print, then it gave us the T0 toolhead error which was resolved a day later when i generated a new printer.cfg from the configurator instead of using his own self built printer.cfg.
iiinteresting. Do you have the old printer.cfg?
But there was something else with that config. It did not work on the new RatOS 2.1
My memory is not the best i am sorry.
Alright. Open your printer.cfg and on lines 48 and 59, put a
! in front of the pin name.In your old cfg, you have it reversed. We'll try just making that match first.
Like that?
no. Like in my picture of your old cfg
ah
i see
And then test home?
Save and Restart in the upper right, THEN yes test home
Looks better!!!
What are the remaining steps until i can print?
ouch
it sound bad now
when the build plate has reached bottom
it sound terrible
the build plate should not have gone to the bottom
perhaps it is also in reverse or something
Sounds like it. Open the printer.cfg and put the
! for each of the three z motors
looks like lines 70, 80, and 87 need the ! taken out actuallyLooks promising!
Yea, think its good now
If it can complete a homing sequence then you're 90% of the way there 😄
wow
So i continue with the other blue buttons now?
I've never used the blue buttons, haven't upgraded to 2.1 yet. but you should at least be safe to run those, yes.
Cool, what are the other 10% besides the buttons you think?
making sure the extruder is running the right direction
that the hotend thermistor is correct. That the bed heats up
the rest is tuning for speed/quality
It's the difference between working, and working well 😛
How can i test if the extruder is running the right direction?
put a sharpie mark on the extruder motor shaft so you can see it move, and hit Extrude. Make sure its spinning the right way
Extruder is the feeder, like Bondtech?
Bondtech is a company, you're using their lgx extruder according to the cfg, so yes.
Ok
Thank you for all the help. I will start printing soon after all the blue buttons have been pressed. I will dump a question here if i have to
Good luck! I gotta get back to work and may not be able to help much the rest of the day but I'll be rooting for you 😄
Thanks!
Success!
Heck yeah!