Tue, Jun 25
@marcio do you mean a dual v3? This is on redgum and does not have a standard dual.
@adam: I took the tool head to X293 Y-16 and it looks like it is 3mm too far forward and 2mm too far left. X295 Y-13 drops it right on on the bolt.
The prototype also ran auto-calibration fine. It was not perfectly centered on the block or the wiper pad, but good enough to clean the nozzle and complete the calibration.
@marcio I took the tool head to X293 Y-16 and it looks like it is 3mm too far forward and 2mm too far left. X295 Y-13 drops it right on on the bolt.
I ran auto-calibration and (besides landing on the cube too far to the back left) it completed with no issues. I will run with my prototype as well.
@nathan @Bobby4wd @Greggb please flash your redgums to 188.8.131.52 and run the auto-calibrate found under the LCD>movement>auto-calibrate. Please post any issues here.
Mon, Jun 24
@anolen I have not seen any other reports, we can go ahead and close this down. If another instance occurs, please open a new ticket.
Has anyone using a mini seen this recently? Hanna hasn't had any LCD freezes since she started working with 2 minis that have newer FW. (about 3/4 weeks of daily printing)
Fri, Jun 21
@adam: Check the whether the coordinate system is good. Take the toolhead to X293 Y-16 and lower it to the washer. It should be *exactly* on the center of the right front washer. If it does not fall in the exact center, then the coordinate system is off (either due to a mechanical problem, or something else)
We have this implemented in 184.108.40.206 FW and incorporated into cura 3.6.11. closing this one out.
Just an update here, this is with 220.127.116.11 FW
The location in the commit above worked well, closing this out.
Thu, Jun 20
On my beta Pro, I flashed .135, upgraded to Cura 3.6.11, used existing production fan shroud, ran the automatic nozzle offset and printed the following calibration print using standard PLA profiles (except .25mm layer) - without any tweaks. Black is left over burned residue from previous. Best print yet!
Wed, Jun 19
My thought process behind the not even allowing calibration to run if the filament sensors detect filament
@Greggb @nathan @DaniAO @adam Lets get a test on .135 as well, we had an update to the LCD screen message telling people to remove filament before running the offset calibration. It should be the only change, but we would like to verify.
@marcio Looks good to me, maybe "continue" instead of proceed, it seems a little more LCD
Hmm, maybe just one more line of text.
Well, we are currently limited to three lines of text. That's quite a lot more... I can try fudging it to support more lines, but I don't most people will even read that, to be honest. TL;DR.
Current wording is:
There is a dialog box that shows up before calibration starts. That text can be customized since it's not standard Marlin.
@marcio Do we have room on the LCD for a message, or perhaps a pop up stating "Offset calibration works best without filament loaded." or "Unload filament filament before starting offset calibraiton, proceed? Y/N"
@bmh Glad to see it sorted! When creating a task you can assign a "project tag" and it will be automatically placed on that board. We try to keep an eye out for ones that come in blank, but do apologize if we miss seeing it!
nice! looks good!
I flashed .134 on my production quiver. The nozzles wipe in the correct location, and calibration was a success. Best print results This is the most successful print I've done.
Flashed .134 on my Quivers here and ran calibration and things are looking good!
Testing this on our effected unit, it got it all sorted. After flashing, I removed filament and ran the offset calibration. Wiped and probed as expected, and first layer Z offset is looking great w/o adjustment
@alexei, thank you :-).
Tue, Jun 18
Confirmed single nozzle extruder to right washer center at x293 y-14. Thats 3 production dual extruders and 1 single extruder confirmed on this machine.
@karrad I did verify my Y axis location.
@samantha Can you verify your bed position matches what was called out in the OHAI?
For the record too, I removed/reattached the blower shroud for testing so I could see where the nozzle was landing. The most important spec is that the nozzle at X-14 and Y-14 needs to fall *exactly* on the center of the front left washer. This is the common reference point I have been using for all TAZ beds.
For the record, that machine was one I got from Steven, who told me it was a production unit. I have not made any modifications to it aside from a blower shroud replacement for testing.
I looked at @samantha's machine and several adjustments needed to be made:
The default offset in the FW is 43. If those numbers are typical, it would seem that the default would be a bit short. Maybe bump it up to 45?
@marcio i have 2 production tool heads on my desk, the x spacing measures ~44mm and ~45.5 mm
Mon, Jun 17
@marcio Sounds good, let me know if you need another example for wider ranges and I can get this one over to you tomorrow.
Okay. I guess I'll start by doing measurements on those machines then. AFAIK, the original value in the FW was from the Alphas. It's entirely possible that choice is no longer appropriate for production machines.
@marcio This has been reported on three separate machines, and @tutley reports @samantha machine is also exhibiting the issue. One should be over there at rockies. Let us know if you need anything else!
@karrad: Well, if it only happens on a machine, then it is that machine which is borked, not the FW. If we want to make another machine a reference, bring it to me and I will do the proper measurements. I won't just fudge it this way or that. There's a specific measurement I am looking for and I need a printer to make it.
@marcio We can grab whatever info is required for you. To my eye it looks just like the entire probe points for the Z move (and x/y cube probing) for that matter are shifted about 5mm to the right. If we can shift 5mm to the left I think it would be sorted. (on the machine originally reported at least)
@karrad: When you do the calibration, the printer relies on the nozzle spacing default in the FW. If this is significantly different than the actual spacing in a machine, then you may get problems with the auto-calibration. It may be off on either Y or X, as appears to be happening. It would be useful to know the mean distance between nozzles as they are coming out of production, so we can adjust the default value in the FW. We could also increase the margin of error (i.e. how far it starts from the edge of the cube), but this will slow down the calibration process.