Folks may remember that, about a week ago, I posted a horrendous print that I thought was due to uncontrolled z-wobble. As well as writing in to the group, I also put in a service ticket.
After a day and a half, I figured out the problem, and returned my printer to its prior performance - it wobbles more than it should, but I'm able to use the parts if I sand them.
After a couple of days, I heard back from Anycubic - since I hadn't heard from them right off, I figured that the request had gone missing, but I was wrong. I decided to keep moving forward with the service ticket and see if they can get the wobble completely straightened out.
If their suggestions don't completely eliminate the wobble, I'll get into the fixes on the Photonsters page, but I don't want to do that until I've seen Anycubic's take on the issue.
Their first suggestions were to lubricate the Z pillar, tighten the screws on the brass block etc., all of which I'd already done. I re-did those things, which made no difference. So, I wrote back, and got an instruction to reflash with new firmware provided with the e-mail, which I did.
The explanation is that the newer firmware lowers the speed that the stepper motor is run. It also lowered the frame refresh from 6.5 to 4.5 seconds.
But, I haven't gotten a complete print since. And, the problem finally got bad enough that I could see it - extra pixels everywhere, and vital pixels turned off. I tried a UV recognition test and, I got nothing at all - not a rectangle - nothing.
I rebooted the printer and got a normal UV test. So it was clearly a new firmware bug.
So, I've attempted to reflash with the firmware that was working and have re-started the print - it's a 14 hour print, so I'm heading to bed and I'll find out in the morning if I have parts.
As to the photo - there's supposed to be a 120mm tall column in the middle - heavily braced and with a small cross-section - that's completely missing. Everything went wrong here. As background - I massively oversupported everything, upped the exposure and lowered the z step a bit, because I'd been missing bits - as in supports that disappeared half way up the model and then reappeared higher up. (blu at 16sec .04 - which is really a bit much - the FEP is in good shape, and the glass and underside of the FEP are clean - the machine is heated to 30c)
I not only got missing bits (like half of that ring in the middle - it had 2 layers of supports every 2mm, btw), but all that extra flash off to the left of the pic.
So, clearly it's a firmware Armageddon - I guess we'll see what happens in the morning (to be fair, the prints in the foreground and background might be OK under all the extra crap, but I'm frazzled and am not going to check them out until tomorrow.
翻譯年糕
Sen Kun
2019-01-24 11:14:57
Richard Shapiro
2019-01-24 11:19:57
Sen Kun
2019-01-24 12:28:55
Richard Shapiro
2019-01-27 00:45:42
Sen Kun
2019-01-27 01:56:13
Richard Shapiro
2019-01-27 02:00:11
Richard Shapiro
2019-01-27 02:00:52
Sen Kun
2019-01-27 02:02:07
Richard Shapiro
2019-01-27 02:02:19
Richard Shapiro
2019-01-27 02:03:25
Sen Kun
2019-01-27 02:03:36
Richard Shapiro
2019-01-27 02:04:14
Sen Kun
2019-01-27 02:04:32
Richard Shapiro
2019-01-27 02:04:33
Richard Shapiro
2019-01-27 02:05:58
Sen Kun
2019-01-27 02:14:23
Richard Shapiro
2019-01-27 02:17:51
Sen Kun
2019-01-27 02:20:48
