28 Replies
Not sure what the issue here is. Wondering if it is where I have mounted the beacon probe. The bottom of the beacon probe PCB is 2.9 mm above the tip of the nozzle.
oooh that latency is not good
It should be 2mm
But the latency is usually caused by the Z axis
Ie, the bed doesn't stop abruptly enough.
@MFBS do you have performance mode enabled? If not, you should prolly do that, you need ~200 Z accel for contact to work.
Thanks I will go find that and enable it.
You can read more about latency here https://docs.beacon3d.com/contact/#71-detection-latency
Many thanks
V-core 3's and 4's are usually <4
Where do I enable performance mode?
Go to the wizard, click on "Hardware configuration" in the step navigator to the right, scroll down to motion
When done, click next and save
Yep I already had that selected
My physical off set of the Beacon board is the same as the VC4 (2.889) in the Cad, so my issue lies elsewhere.
Wonder if it might be a factor of the TC nozzle I am using that has a very small diameter tip.
...trying with some different bed plates
Huh i thought that was lower.. Oh well.
It is what I based the height of the Beacon mount for the Microlight on so hence they are both identical.
yep, i'm surprised by that. But at least you know that's not the problem 😄
Changing print sheets has made no difference.
Looks like there's some drift in your Z
Maybe. But my Z probing accuracy with the Beacon in 2.0 was very consistent.
Z tilt results are also very consistent currently
Then maybe it's something else
try this http://tools.annex.engineering/beacon_plotter/
See what the signal looks like
Added the authorisation into moonraker.conf but I suspect it is still being blocked.
I am going to try a standard brass nozzle and see if that makes any difference.
...I also wonder if it is because I tun an unsupported linear X rail....if I lightly rest my hand on the linear rail I can feel the slight bump when the nozzle touches the bed.
moonraker port is 7125
could be
Beacon plotter is running now that I have opened the right port thanks...
The graph shows no noise.
Very cool tool though!
Changing to a brass nozzle with a larger tip surface area made no difference.
First layer tests are coming out very nicely as good as I was able to get them on my best days with the Beacon on RatOS 2.0 so I will probably not chase this further...I have some planned hardward upgrades in a few weeks to will revisit this then
You need to watch it while doing BEACON_POKE tests
Aight, it's not unlikely that it's highlighting a mechanical issue though. It's a wicked analysis tool for a lot of things. It has backlash measurement too.
Will do that tomorrow.
Scan while running BEACON_POKE_TEST
Looks as I would expect. I may mount a dial gauge on the frame and see if I can measure any vertical movement of the X linear rail when doing the poke test. Print head is very rigid and I am using what might be a genuine Hiwin Z1 light preload carriage, rail. Resting a little extra weight on the bed (my hand) while doing BEACON_POKE_TEST does not change the character of the results.
The good news is the first layers so far are very very good and consistent.
yeah this looks great, so the signal is not the issue, that leaves mechanical z noise/issues.
I agree with your assessment that the floating X rail seems like the most likely offender