- User Since
- Mar 20 2018, 10:35 AM (74 w, 2 d)
Mon, Aug 19
@logan Since Levi is the trainer and QA guy I think he needs to be in on the loop for these things too. But I don't think he's on Code.
@logan Definitely have had some since Tuesday. Besides Rob, have you talked to Rasy, Andrew and Bernardo? Also maybe Brenda and Gus too.
Mon, Aug 12
@DaniAO So we're good to go?
@DaniAO Doesn't seem to be affecting anything. Thats as far as I got Thursday so if there's other issues I haven't seen them yet.
@cmerot If it wasn't clear this morning we're going to hold off an calibrating until this is said to be ok or something else.
@tutley Gotcha. That would be really nice if thats what ends up fixing it cause thats probably the single most thing that causes us time with reprints and tuning.
@tutley I think if we didn't adjust backlash we'd be red tagging so many machines. The auto cal just gets us so far then the rest is just dialing it in til its in spec.
Wed, Aug 7
Tue, Aug 6
@cmerot @tutley @Steven So theres really not much of a change. The first printer I grabbed this morning ran into the wires. I didn't even bother trying to mess with it cause the whole point of this fix was for calibration to not have to mess with it. The second machine I grabbed right after that didn't have the retention clips installed and I could see that possibly during use that it would start interfering also, but Christian told me to not even mess with it right now since the first one was such a mess. Both of these toolheads have the new stuff installed on them, except the second one just doesn't have the retention clips.
First machine with retention clips and wires are just a bundled up mess with no improvement of function
Second machine missing retention clips on both sides
Tue, Jul 30
I just wanted to post something in this one again cause we found some bed corners(PP-GP0396) that were way over-squished and caused the bed to sit so low that when you torqued the bed leveling washer down the spacer was holding the washer up off the bed wasn't making contact. @david.hall I got with @EricNugent and he confirmed that were too squished so can you get with the cluster techs and make sure they are keeping an eye out for it? The 2 I showed @EricNugent that I pulled off my machine had a 1mm difference in height.
Thu, Jul 25
@karrad Nope, the wipe location seems fine.
It also says something like"Q-wiping" or something like that when its doing the wipe function.
Jul 24 2019
@marcio, we check every machine with the jigs. Its the best we can do.
@adam The machines dont seem to be as bad as the first ones for whatever reason but yesterday I noticed that the back left one still seems closer to the screw than any of the others.
Jul 23 2019
Jul 18 2019
@karrad Generated by Cura LulzBot Edition GCodeWriter Version: 3.6.10
Jul 17 2019
Will at finals just had one that was really loose and the bearing would just slide out of the pocket and rub the pulley like it was magnetized to it.
Jul 16 2019
Jul 15 2019
@logan , yes they have been under the washer.
Jul 11 2019
@tutley Ah, that makes sense! Greg had one that was over squished on the opposite side though so I think that blew a hole in my theory anyway.
Some of these are definitely getting rolled up on themselves and causing some of the issue where they don't spin freely I've found.
Jul 10 2019
@west Dylan said they will try to move it over more but then it kinda becomes an issue where you can only move it over so much because of how thick the wires are at the loom part and it wont fit into the groove in the housing.
@west There is a 3mm gap in between the strain relief and the interconnect housing that exposes that. Thats how we noticed it.
Jul 9 2019
Jul 3 2019
@tutley Ive also seen retainer clips installed backwards on that side and it will make it home deeper than it should cause it leaves like a 1.5mm gap inside the double bearing holder for the x bump stop to go into the bearing holder, but that has been extremely rare.
@tutley Yes, the wire routing on the E1 motor has been an issue. I commented yesterday in the ticket about the wire retainer clips and that still being an issue where the wires causes interference. I wanna say Paulette emailed toolheads with pics of the wire routing and asked for them to be routed a little more neat but I can't verify that right now since shes out. But personally on my machines Im very vigilant with making sure it homes the X all the way but it can very much be an issue if not looked out for.
@marcio I agree that the 297 is probably what should be used cause on most printers the 298 places the nozzle really close to the plastic of the wiper mount at the start of the wipe.
@marcio , so when you say the printer should be adjusted you mean position the Y axis to where it lines up? Cause right now each machine gets the Y axis set with a set of jigs. One that sets the alignment from the left of the frame and one that sets the Y axis from the back of the frame and then we check and make sure its square to the frame. So as of right now we can't adjust each machine independently, we have to do it by the process thats it place by using the jigs. So that would be up to someone else if each machine can be adjusted to a custom dimension rather than using the jigs to set each machine the same as the last.
@karrad through the LCD. But as a side note I created a ticket yesterday cause the wipe function doesn't work in Cura in case you missed that code ticket.
@marcio After the nozzle cal its still misses it to the left.
@karrad @marcio @DaniAO @tutley It seems like the clean nozzle function through the LCD places the E2 at an X position of 293mm while the start gcode places E2 in a range of 298-295mm. So when you start a print it doesn't seem to have too many problems and the wiper pad contains it inside the mount but when you just use the clean nozzle function its placing it outside the wiper mount at the 293mm position.
Jul 2 2019
So as an update on this being used in production for about a week now the clip definitely helps with the E2 wires, but as far as the E1 side theres not much change. It doesn't hurt it but doesn't really help. The connector on the E1 motor has the wires coming straight out and sometimes the they pop out of the loom and cause interference with X homing. But sometimes its difficult for whatever reason to get the motor wires to stay where they need to be on the E1 side.
@karrad today they are all missing to the left.
@tutley so @zachah was able to get the E2 nozzle to wipe on the pad by pivoting the E2 hot end . Its not center, but its on the pad and not scraping the plastic anywhere so this one will be passable. But a wider wiper pad sounds like something that would help us out tremendously!
So as of right now we have 3 machines doing this. The one I had this morning, Greg just got one and now the one I just started is doing it. E1 wipes fine, or at least would be passable, but E2 wipes right on the plastic of the wiper mount on the left side or misses it too far left all together. Does this need to become a separate ticket?
@tutley Its kind of a weird issue in my opinion. I had @zachah look at a machine this morning cause E1 would would wipe in the middle, maybe a smidge to the right on some passes, but E2 would miss the whole thing to the left. The x min bump stop gets checked on every machine and so do the Y axis jigs and its checked with the square and the extruder wires are ziptied out of the way. It seems like more often then not @zachah fixes the issue but pivoting the nozzles so it seems like that may be the issue more than anything else but thats not always a fix unless we just get multiple toolheads one after another with nozzles that are positioned where theyre needed. @tutley lets say everything is where it needs to be but the nozzle position is whats causing it to not wipe in the center wouldn't the auto-cal offset fix that? Cause the wiper pad is where it needs to be by setting everything with the jigs and it never seems to make a difference on the machines that have this issue.
So it helps with the E2 nozzle hitting the cube. But there must've been some confusion cause over the last couple weeks we've been having machines where for example E1 will wipe in the center but E2 will miss the pad all together and we we're hanging on just doing the best we could to get machines to wipe properly cause as we understood the firmware would do something to fix this since wiping issues we're first mention in the opening description of this ticket.
Jun 26 2019
PP-IS0086 thats the inserted part number.
Jun 24 2019
Got another today. Red tagged and set aside for transport back to Rockies.
@DaniAO Just want to bug you again cause it still happens everyday.
I too have seen this issue. I currently have a machine doing the same thing but when it goes back to do the 2nd more precise probes on the cube it seems to be hitting the cube better and not missing the tip of the nozzle. But I ran the autocal a second time with the new nozzle offsets and it still missed the second nozzle the first time so even with the correct nozzle offsets it still misses the first time.
Jun 19 2019
Got another one today and I'm tagging @david.hall so you can get some eyes on this too.
Jun 12 2019
After showing Dani the problem we discussed it and depending on the severity of the flickering we'll use a judgment call on whether or not we should send it. If it flickers just a tiny bit like the one Paulette had earlier we'll pass it and if its more like the one I had we'll reject it. Unfortunately theres not really a clear way we can post examples though without just seeing it in person.
@DaniAO We saw it on a printer Paulette just had but reflashing it seemed to really help but you could still see a little flickering on blank grey screens, but so far its only been 2 machines and only 1 of them MER and us thought wouldn't be passable.
When looking at the machine at an angle its not that bad, but when looking right at it its bad.
I have one thats doing this all the time, even after a power cycle. @marcio
Jun 11 2019
@DaniAO Any updates on the ECO? This still continues to happen everyday.
Jun 10 2019
@logan the one you worked on last week and asked me to try still seems to be doing it. Ill set it aside if you wanna look at it again.
Jun 6 2019
@logan They are on the metal wire rack next to Paulette in case you come looking for them.
Jun 5 2019
Jun 3 2019
We just caught and sent back 9 that had that issue.
May 29 2019
May 22 2019
@DaniAO Sounds good.
No more goobers. Sometimes it strings the ooze from the nozzle across the print, but its far more manageable than it was before and if it does ooze at least its not 40 mins for a reprint.
@tutley I've witnessed these being tightened with 2 fingers holding the driver and they strip out. They get checked with a 5in lb torque driver.
May 21 2019
Some of the calibrators are having trouble measuring the skirts and setting the nozzle heights because the E1 skirt gets covered up by the E2 purge skirt and measuring the E2 skirt may not get the E1 nozzle height right. Besides that it seems to be going well.
May 20 2019
May 16 2019
@EricNugent But an X belt in the 23-30 range is in spec, but feels awfully loose...
@EricNugent I always check the belt tensions myself and they are in spec or I adjust to make them in spec.
May 14 2019
May 13 2019
Is it because we're on 2.2b now?