oskar7122
RRCRat Rig Community [Unofficial]
•Created by swdee on 12/28/2023 in #fix-my-resonance
Trying to tune Vcore 400mm
Try tightening the upper belt 0.5-1 turns and rerun the belt tension graph.
Also run an input_shaper calibration every full turn or something and make sure you don't go too high in MZV hz for y. I can't remember if ~40hz is "tight enough" for Y for a 400mm³ (meaning, you're already a little bit too tight) or if it's closer 45-50hz that's the "max"
Y on my 400 is tuned to 44hz mzv and gives max accel at ~5900mm/s², but I have a little bit lighter weight gantry (and probably a heavier fan - sanyo denki 9gax something)
46 replies
RRCRat Rig Community [Unofficial]
•Created by swdee on 12/28/2023 in #fix-my-resonance
Trying to tune Vcore 400mm
I think @Helge Keck would say that both your vibrations on the last graph / belt tension are a bit "crazy" and that you should try to tighten stuff (screws, make sure cables etc can't shake) to decrease those vibrations > 100hz.
46 replies
RRCRat Rig Community [Unofficial]
•Created by swdee on 12/28/2023 in #fix-my-resonance
Trying to tune Vcore 400mm
Max accel < 5300 for Y with MZV at 42hz, I think you can safely tension belts a bit more.
46 replies
RRCRat Rig Community [Unofficial]
•Created by swdee on 12/28/2023 in #fix-my-resonance
Trying to tune Vcore 400mm
The last one - belt tension is uneven. But i'm not very good at these.
46 replies
RRCRat Rig Community [Unofficial]
•Created by swdee on 12/28/2023 in #fix-my-resonance
Trying to tune Vcore 400mm
Not certain that this is it, but it's a theory which could explain it.
46 replies
RRCRat Rig Community [Unofficial]
•Created by swdee on 12/28/2023 in #fix-my-resonance
Trying to tune Vcore 400mm
*striped it down
46 replies
RRCRat Rig Community [Unofficial]
•Created by swdee on 12/28/2023 in #fix-my-resonance
Trying to tune Vcore 400mm
Tie that adxl-cable down to make sure that the cable is moving with the toolhead.
I have tied mine down into the green cable-gland and (I think) also tied it down on the right side of the toolhead just by the extruder or something
46 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
Before moving on to next step - z-tilt make sure to check that the bed is quite level - less then a centimeter in height difference between all three lead-screws is good just to be safe so you don't crash / scratch the bed..
And maybe also mount he PEI sheet upside down initially (assuming you have a single-sided pei sheet so if you were to crash you crash into the non-coated side) - just until you get this working properly.
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
If unsure, just download the printer.cfg from the printer ui and upload it here so we can check.
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
(this is from my printer which is a 400 so 400 is uncommented)
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
Check in printer.cfg that you have commented out the default 300.cfg here and have removed the "#" before the line saying 500.cfg:
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
When homing it should lower the bed first (not raise it, if it raises it then it's going the wrong direction) then it should home X (Move toolhead to left on gantry until endstop) then home Y (Move gantry to back of printer until endstop), last it should center on the bed (X / Y should be at 250,250 for a 500) then it should home Z (move bed up towards the nozzle) until probe triggers, and the probe should trigger before the bed hits the nozzle.
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
https://ratrig.com/rat-rig-superpinda-probe-by-pepperl-fuchs-inductive-5vdc-sensor.html
The probe should trigger within about 2-2.5mm from the steel sheet, so the probe can't be mounted higher then this relative to the nozzle tip or the bed will crash into the probe.
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
"PEI" sheet
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
Do you have the springsheet metal mounted on the bed or just the aluminium?
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
I think you can ignore that for now.
The probe should trigger before the bed hits the nozzle.
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
That value should reflect the position on the bed.
150, 150 is the center of a 300mm printer.
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
Ok. how far above the nozzle is it mounted?
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
What probe do you have?
Have you checked that the probe triggers if you try to trigger it manually?
25 replies
RRCRat Rig Community [Unofficial]
•Created by bharat___18 on 1/4/2024 in #fix-my-printer
homing issue
This can happen if:
* The probe is mounted too far up from the nozzle - then the bed hits the nozzle before the probe triggers.
* The bed is tilted too much, same problem as above.
* The probe is wired wrong so it doesn't react.
25 replies