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CTotten

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Everything posted by CTotten

  1. While I can't rule out that the glass moved, it is highly unlikely. The glass on my S5 fits very tight (my 3E is another story). And I don't know if keeping the stepper motors energized really functions as a true lock, or if the steppers really stay energized the entire time after a pause from running out of filament. Yes, this "return to home" will not correct movement of the plate, but it seems like a logical step to zero out any potentially introduced offset in the print-head following an intrusive procedure like changing filament mid-print. And it is a 5 second process that can be added into the resume command. Once I finish my production runs mid-week, maybe I will test this again to see if casual contact with the print-head does cause movement in this condition.
  2. I recently had an issue with an X/Y axis shift after changing material on my S5 mid-print. When the S5 detects the material runs out, it pauses the print and moves the print-head to the center/front position. It stays here during the material change. When you resume the print, the print-head goes directly to the X/Y position it left off prior to the pause. My general practice is that I clean off the print-head prior to each print. Since adding the S5 (with active material detection) to our line-up, I also cleaned the print-head during the material change process. My assumption is that I slightly moved the print-head while cleaning of the nozzle. I recommend that following at material change pause, the "Resume" command starts with a return to the Home position before resuming the print. This would eliminate any possible error introduced by moving the print-head during a material change.
  3. Just as a reference point, I think it was over a year after the official release of the previous model (UM3 / UM3E) before Ultimaker released the CAD files for (most of) the mechanical parts. Many of the parts used on the S5 are the same as the ones used on the UM3 / UM3E, so if there are specific parts you want, you can likely use those. For example, the spool holder is identical between the older UM3 and the newer S5. I have a modification to that part that works on both, and the 3D files for the UM3 spool holder is available.
  4. I have both a UM3E and a UMS5. Yesterday, I started identical print jobs on both with an estimated time of about 25 hours. I started the 3E first, and after they ran for a couple of hours, the time remaining on both machines was within about 30 minutes of each other (S5 scheduled to finish later). This morning when I got to work, the S5 time remaining was about 2 hours later than the 3E. I am using Cura 4.1 for both machines, the same material for both, and the default settings (minus tuning the S5 print bed temp to match the 3E default - ironically the default bed temp for CPE appears to be 75C for the S5, but only 70C for the 3E). In terms of scheduling to maximize up-time, and cost estimations, the "growing" time on the S5 is a bit annoying.
  5. Is it supposed to re-home after a material change mid-print? It makes sense to me that you would do that, but I didn't write the code... And is that really the "formal" way to report a bug to Ultimaker? Don't they monitor this forum?
  6. I was trying to use up some left-over materials (like 2-5m of filament left on spools) by taking advantage of the material feed detection on the S5. It seemed to be working well, but after the second material change, I noticed an X/Y shift in the print. My assumption is that I somehow bumped the print head in the process of changing materials. My question: Is there a way to re-zero the X/Y position of the print head after changing material mid-print, before resuming the print job? The print head parks in the front / middle position to change the material, then immediately resumes the print job after the material change. What I am hoping you can do is somehow command the print head to return to the home (back / left position) to validate it's X/Y position before resuming the print job. I think that would prevent this issue, because my thinking is that my bumping the print head (cleaning off a couple of globs stuck to the nozzle) introduced a small bias into the X/Y position the print head thought is was at, then caused the X/Y shift when print resumed. My understanding is that the print head position is not dynamically measured, but is based on change commands from the known "zero" position.
  7. I have been printing almost exclusively with CPE for over a year now (been through about 10 spools). I basically use the default Cura settings from Ultimaker, and I have had no issues with the print quality.
  8. We recently added an S5 to our lab (already have a 3E). I have been printing parts for a project for over a year on the 3E. I can fit 25 to 30 of the same part on a 3E build plate. I can fit twice that amount on the S5 build plate. I finally started printing my next production batch of parts on both printers. I am noticing that some parts on the S5 appear to be warping. This is occurring at the outer edges of build plate only. This doesn't happen on the 3E. My first assumption is that since it is larger build plate, perhaps the bed temperature is not as consistent toward the outer edges. Has anyone done evaluations on the bed temperature consistency on the S5? My next print I will probably bump up the bed temp a few degrees to see if that changes anything.
  9. Same issue here. First print job on the new S5 that actually required precise alignment of screw holes. Spent about 10 minutes scratching my head, thinking my PCB was not symmetrical or was mis-cut, then I check the square on the part and it was off by about 2 degrees. Printing the larger alignment pegs now (had the 8mm ones already for my 3E), so I will try to re-do the alignment tomorrow.
  10. It could be related to the firmware version. I have not updated my firmware in 9 months or so. I will try to post the firmware version currently on my machine later this week.
  11. Thanks. That makes sense based on what I have read on the S5 setup.
  12. Here you go. You need one base, and two arms. Arms clip onto the base. I usually only print with a single material, so I never bothered to make on for the extruder 1 filament spool, but I may do that in the near future. I will keep you posted if I do. Enjoy! FilamentRetainer_Arm_UM3E.STL FilamentRetainer_Base_UM3E.STL
  13. I am finally getting around to posting this. We bought our UM3E about 12 months ago. The first time I ran a print over night, the filament jumped over the edge of the spool, got bound up around the spool post, and caused the print to fail (in the last 60 minutes of the 20 hour print job). I was very frustrated. So I designed a simple add-on to prevent this from happening again. The factory equipment restrains the filament at one point around the spool, leaving it free to jump the spool around the rest of spool. To fix this, I created two additional restraint arms. To make sure it fit correctly to the existing components, I downloaded the part CAD files from Ultimaker. It fits over the spool post, and positively locks into place against the existing retainer arm (to prevent it from rotating with the spool). When changing spools, you just sit the retainer on the side of the spool, and load it normally. A little turn ensures it is locked in.
  14. I think in both cases it was following an aborted print. Interesting. I will add that to my workflow to make sure the printer is power cycled after an aborted print. Hopefully that will prevent that from happening again.
  15. Twice in the last few days, I have started a print on my UM3E, only to have the machine basically stall during the initial filament purge (the glob it puts down in the front/left corner). In both cases, I had to shut the machine off to get it to stop. Normally, it purges for a few seconds, then lowers the print bed a bit while purging for a few more seconds, then moves to begin the actual print. The total time is normally no more than 10 seconds. The first time, it purged for about 30 seconds (at the initial height, and never lowered the bed) before I realized what was happening. It made quite a mess on the nozzle. After that was cleaned up, I started the print again and it worked fine. Today, I went to run another batch off the same G-Code file, and it did this again. I caught it quicker this time, so less of mess. As with the previous time, I started the print again and it worked fine. Any ideas? I have had this machine for 12 months, and have never seen this before. The firmware has not been updated recently, and the same Cura version has been in use for months.
  16. OK, so as I typed the original post, I realized I should have checked a 3E profile setup. Using the 3E profile, the default file type is G-Code. The UFP file type can be selected as the file type for the 3E. It appears the default file type for the S5 profile is UFP, but G-Code can be selected from the file type drop down. Still wondering what the UFP file type is, and what it is used for.
  17. I just updated by Ultimaker Cura to version 3.5.1. After I get a print set up in Cura, and I save it to my desktop for later use, I noticed the sliced file is being saved in a *.ufp file format, instead of the *.gcode format that my previous version of Cura (3.1.0) saved as. Is this expected? I am not familiar with this format. Cura does not seem to recognize this file type (as in I can select Open File in Cura, and it will show me all the saved G-Code files, but not these new UFP files). I have not saved any new files to my thumb drive yet to use on the printer. The files I am working with are using the S5 profile so that I can see how many extra production components I can fit onto the build plate on an S5. I currently have a 3E, so I am trying to convince my boss to get an S5 to increase our production capacity, as well as to take advantage of the new features on the S5 (particularly the "fully supported" composite materials and the new CC print core). Anyway, maybe the UFP file format is exclusive to the S5 profile? Any help would be appreciated.
  18. With the new UM S5 coming with both a glass and aluminum build plate, I was wonder if Ultimaker will offer an aluminum build plate upgrade for the UM3 line? My firm exclusively uses engineering materials for our prints, so that aluminum build plate would be a great time saver. We currently use the adhesion sheets, but the time/effort required to change those out periodically is becoming a pain.
  19. I am looking to get the dimensions of the Ultimaker brand (NFC) filament spools (750g). We are purchasing a UM3 and are planning to get a vacuum sealer to store partial spools of filament, so we want to verify the dimensions to make sure they will fit in the vacuum sealer bags. Thanks in advance.
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