Nope, the message tells you exactly what you need to do - take target_z down a bit - I think I have mine set at -0.75. And it literally tells you what the problem is - the initial non-contact zeroing is high enough that your probe thinks your hotend is at -0.45mm and it hasn’t actually touched the bed yet. You can look up the command on the eddy-ng wiki pages to do a tap homing outside of your print start macro to more easily diagnose - get down nice and low so you can see how close the tip is getting to the bed.
I can almost guarantee that your problem could only possibly be one of your bullet points - eddy positioning. I’m using vlad’s own mount.
Here’s why it’s none of the others. It’s not cable noise - that would just cause klipper to hard-stop because it can’t communicate with the mcu. It’s not the screws, because they’re stationary with respect to the eddy - they’re also 20mm away from the coil. Bad usb connection on the hub would also lead to mcu faults hard-stopping Klipper. Bad tension would only be relevant if you’ve been dicking around with your z-axis belts, and it would be less random.
Thanks for your suggestion but my nozzle already touching the bed at -0.250, at -0.450 that is already starting to force on the Z belts (that is too mush). I played with the tap_threshold setting with more success (i have some obvioulsy false results -too hight- but the driver managing to exclude them and that works). I slow down it to threshold=50 and keeped the TARGET_Z at -0.250.
In a YouTube live stream 2-3 weeks ago, Sovol mentioned that they will be providing an Eddy upgrade for the SV08, although the Zero launch and the launch of their new 500 mm coreXY printer are occupying their time and effort at the moment.
My SV08 has two problems. The bed warps 1.1 mm when heated, and the inductive prox sensor won’t produce an accurate bed mesh so Klipper can compensate for the warped build plate. Both problems need to be fixed, because even if Klipper has an accurate bed mesh and can compensate, my large parts will have a 1 mm warp. I don’t want Klipper working that hard to compensate for a badly warped bed.
My goal is to purchase the Eddy upgrade when it’s available - presumably new hardware to install and a forked Eddy version of Sovol’s SV08 flavor of Klipper to install. Once I have the ability to make a fast and accurate bed mesh, I can use that to manually shim the bed, hopefully to have less than 0.2 mm of warp over most of the bed (maybe not the cold corners). Then my SV08 can start living up to its awesome potential.
My Zero arrives in two days so the new printer should hopefully keep me busy until Sovol can create the Eddy upgrade for the SV08.
Early on in my setup process, I had the same error you did. Did you QGL and re-home Z before trying to touch? You’re getting that error because the printer thinks it’s too low but the touch wasn’t detected. Also, you may not be using the right drive current. Read up on the wiki for how to test different drive currents and ensure you’re using the best one. I home with 16 but tap with 17.
I actually got it done. I was waiting a bit to see if it was a stable modification, but overall, I made two mistakes:
I enabled “Optimize stepper driver timing for step pulse on edge” on my various MCUs, which caused (I think) a loss in USB connection stability and possibly less fluid movements. => Upon further investigation, this option is really not suitable for the SV08.
Since I had this instability, I connected a powered USB hub via a stepdown… I made the thing unnecessarily complex.
Returning to a more standard configuration, I have the same behavior, it works out of the box (with a slightly lower target z as you said earlier).
Hi all. I had a problem with the main motherboard and received a replacment from Sovol. My problem is I cant get it to work? I gave tried to install the firmweair with the adaptor for the EMMU but it still wont work. I alst vane tried to update to the latest firmware 3.3.0! I think it is, but still no joy. The original clickey screen just shoes syster booting. The HDMI csreen showes MCU’MCU
TRY RESTARTING THE PRINTER, NOTHING WORKS.
I don’t know but it seems to me with the new mobo you have to change the MCU in printer.cfg>
Did you do that ..
looks something like this:
[mcu]
serial: /dev/serial/by-id/usb-Klipper_stm32f103xe_32FFDA05334E563626572051-if00
restart_method: command
DON’T copy paste this , it’s mine ..you have to get your’s with fi putty
When it’s in printer config it should work
From the videos I saw months ago, the Bondtech INDX system will have one Eddy tool head that is only used for calibration so the print heads won’t need to accelerate and decelerate the mass of an Eddy probe. If you buy an Eddy probe now, you’ll probably buy another as part of the INDX upgrade.
I feel bad about gently but persistently urging Sovol to provide an Eddy tool head upgrade but because it took them so long (small company, other obligations) I’m now holding off for the INDX upgrade to get Eddy bed mesh calibration as part of the multi-filament upgrade.
Bondtech was targeting November (now) as the INDX release date and the SV08 was possibly the top of their list for kitted INDX solutions at $250 plus $35 per tool head. I haven’t heard any updates lately. It’s weird because there don’t seem to be any INDX videos on YouTube in the last month other than David Woods’ Blender animations. Hopefully they’ll have a polished INDX shipping soon. I don’t want them to rush a half baked system, and I don’t think Bondtech will do that, but I am eager to have my SV08 upgraded. It’s been down for repairs that are now pending upgrades. It’ll be awesome when upgraded! I miss my SV08 but my Zero has been a little workhorse.
I want this multi head solution for my SVO8, and I also have the bits ready for going to mainline kipper, and a Raman hear bed….I am at the point of well, I might as well wait and do it all in one big upgrade job, than mess around anymore trying to get a reliable print. I also have the Snapmaker U1 on its way at some point this year as an early backer to go alongside my P1S, so that will probably take a bit of time to learn and become familiar with…..
But the Bondtech system looks Soooooo promising….and possibly might be able to get maybe 8 heads on the SV08 frame?
Even fast switching low waste two filament switching would be a major upgrade with diminishing returns for each additional added filament. I could realistically make a case for swapping 3-4 tools, particularly if it’s smart enough to do two filament printing with four tools so it could switch to a new reel of filament when the previous is empty. For production printing, it’d be great to be able to pull off a printed part (or parts) and if a reel is empty, replace it, with no other reel management and no wasted filament at the end of a spool that isn’t enough for the next print job. Even with diminishing returns, once the $250 base system cost is budgeted, there is little reason not to spend $35 per tool head for as many as the printer can accommodate. If nothing else, more tool heads provides some redundancy for added reliability in case one has a problem with the nozzle, although the tools are so simple there isn’t much to go wrong with them.
I looked on the Bondtech site and their INDX FAQ still says: “We will continue to develop INDX with our community in the following months and plan to launch it during FormNext late November 2025.”
I hope that’s true. There will be a feeding frenzy when INDX ships. There is a lot of pent up demand. Based on comments I’m reading online, many people are waiting to buy INDX, just like I am. If it works as well as I suspect, I’ll probably convert my Sovol Zero printer as well.