Time Estimates Wrong and Change Mid-Print
I have a Prusa XL 5-TH semi-assembled that I built about two weeks ago. I love it, though there's definitely been a learning curve. My previous printer, which i still have, is an Ultimaker 5S Pro so I'm not new to printing though I am new to Prusa.
My question is about estimated print times. I've got PrusaSlicer tuned pretty well and the prints look great, but using this guy as an example, note the bottom where it says that the estimate print time is 7h23m:
I printed that yesterday with the same estimate and it took 13.5 hours. I found a setting in PrusaSlicer where settings were just used for time estimates and not sent in the G-Code (Seriously, why?) so I "fixed" that and sent the job today paying attention to the times as it prints. When it started the print the printer said that there was 7h.20m left. Hooray! This was at ~11:20am
40% into the print here's what it says:
Already it's looking like it will be a total of 9h20m, but it would seem that the "time remaining" values *anywhere* can't be trusted. I fully expect this to take 13.5 hours again.
When printing objects on my S5 with Cura the estimates are spot on every time. What's causing this discrepancy on the XL and how can I fix it?
Thanks!
RE: Time Estimates Wrong and Change Mid-Print
It's now been printing for 9.5h and says it has 2h to go.
RE: Time Estimates Wrong and Change Mid-Print
Total time 12.5h with a 7.5h estimate at the start.
RE: Time Estimates Wrong and Change Mid-Print
Update: I just printed a fairly complex single color print and the time was spot-on, so limited data would seem to indicate that this incorrect time issue is tool-change based.
RE: Time Estimates Wrong and Change Mid-Print
Is no one else having this problem?
RE: Time Estimates Wrong and Change Mid-Print
I have seen 'updates' in the time estimate as the printer goes while using multiple toolheads, but they haven't been far off for me. My XL only has 2 heads, but my last print was about 5% longer than the slicer estimated and the timing dynamically adjusted on the printer screen as it progressed.
I'd much rather have an accurate estimate than one that needs to update, but it seems like the screen gives you the more accurate one. I hadn't noticed this before updating to 2.8.0 and 6.0.2, but I can't say if I just wasn't noticing it or if it wasn't there.