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Alzibiff

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Alzibiff last won the day on June 7 2023

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  • 3D printer
    Ultimaker S5

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  1. After over a decade of 3D printing with my home built RepRap machine and using Skeinforge as my go-to slicer which I always considered to produce accurate results when it came to dimensions, I have been using an Ultimaker S5 and slicing with CURA for the last 9 months or so - all good. However, today I downloaded an STL file from the internet which was a very fine 0.2mm in the Z direction, (a Christmas decoration). When slicing with CURA V5.5.5.0 and setting the profile to one of the 0.1mm layer height varieties, I end up with just ONE layer rather than the expected 2. I have repeated the slicing operation with other 0.1mm layer height - and less - profiles with the same result - a single layer. Any suggestions on what I am doing wrong or is there an explanation of why I am only getting one layer with a file which logic suggests should produce 2? I attach one of the files that I am trying to slice which in a CAD system is definitely 0.2mm in the Z direction. 1a.stl
  2. Thank you for your reply which answered all of my questions. I have also used UM Breakaway with good results although from time to time depending on the model being printed, I can get bits of breakaway material trapped inside the model it is supporting. On the downside, UM Breakaway is rather expensive compared to the BVOH which I have found at a very attractive price from a reseller who has it in their "sale" section. (BVOH marked as manufactured by Mitsubishi).
  3. I have purchased a sample of BVOH for use as a dissolvable support material with my S5 printer. I would appreciate help in determining the right settings when it comes to nozzle temperature as well as nozzle type. Specifically, do I need a BB nozzle or will I "get away" with my regular AA nozzles? Would telling CURA that I am using PVA be a quick and easy way of using this material as it seems to have a similar print temperature? (Saying that, I suspect that CURA would want me to use a BB nozzle). Any advice / help would be very much appreciated.
  4. Alzibiff

    Brims

    Still struggling! I can import two models and the brim works as it should on each but when I merge models, the brim disappears. This has happened on both multi-model jobs that I have sliced in Cura 5.4 so it isn't anything to do with a specific file. This is very infruriating as the latest print - merging two models - I want a brim in order to avoid warping on a 14+ hour print. Quite happy to accept my shortcomings when it comes to CURA settings as this is a new bit of software for me, I just want to know whether there are any settings I can try? EDIT: I have just resliced but told CURA to use Extruder 1 as the build plate adhesion extruder rather than leaving it at the default which seemed to work fine with other jobs I have prepared so I sort of have a solution now! (Odd that if I selected Extruder 2 as the build plate adhesion extruder, I still didn't get a brim. Hey ho!).
  5. Don't overdo the freezer - a minute at a time is usually enough. The technique works on a contraction/expansion basis so if the freezer doesn't work after a minute or two, take it out and leave it to get to room temperature again and if needs be, repeat.
  6. Alzibiff

    Brims

    After buying a previously loved S5, I started to use CURA as my slicing tool - it has certainly come on a lot since I last tried it out in 2012 with my home built RepRap machine. The BRIM feature is something I tried once with Cura V5.3 but wasn't a fan of the way prints needed tidying up after removing the brim in order to get edges smooth. Today, I thought I would try it again with V5.4 for quite a large print, roughly 252mm x 170mm on the bed. However, when slicing with all the default settings for Engineering Normal 0.15mm layer height, rather than the wide brim I was expecting, I didn't get anything at all - not even a couple of outlines or a skirt. Any suggestions on how to slice and get a proper brim and any idea why this happened? Could it be something to do with the 3MF file that I was using? (Yes - I had BRIM selected in the Build Plate adhesion settings).
  7. Just updated to V8.2.1 firmware but cannot see anything on any website describing the bug fixes which I assume were the reason for the upgrade. Any ideas?
  8. Two designs for a "Manchester" themed luggage cover for my new Bumblebee Yellow Brompton bike. I think that Ultimaker Yellow filament is a great match to the paint used by Brompton for their 2023 limited edition colour.
  9. I now have an Ultimaker S5 after over a decade of using a home built RepRap machine and as a newcomer to CURA need some assistance in loading print profiles for the S5 from a 3MF project file provided by the filament manufacturer - RECREUS. I have followed the RECREUS instructions for importing profiles into CURA but rather than having extra material profiles for my S5, have ended up with RECREUS Filaflex profiles for a printer called "Artillery Sidewinder X1". (Presumably the machine embedded in the 3MF files). How do I move the profiles so that they appear in the S5 materials list?
  10. Just tried it .... didn't work for me using Ultimaker TPU on a 60C heated bed, the TPU simply refused to stick so not quite the solution I was looking for 🙂. Will have to try it with an unheated bed and have fingers crossed that the PLA will adhere - it has been a long time since I printed PLA 'cold' but will see how it goes with some Magigoo or similar.
  11. Solution marked - I simply wasn't following the guide which Dustin provided a link to. The issue was nothing to do with the front fan but saying that, Dustin's response led me to discovering that my fan has a fault somewhere. Being new to the printer, I wasn't aware of when the front fan should spin. (Although 'no spin at all' is a bit of a give away!).
  12. Just seen this on the Ultimaker support site which suggests that all is well with the air manager fan coming on when the print core temperature rises. Just need to sort out the front fan behaviour ... or lack of behaviour now! "Any time a print core or the heated bed exceeds a temperature of 50 °C, the fan of the Air Manager will turn on. At these temperatures, residual material on the build plate or in the print cores can emit UFPs, which should be filtered. Therefore, it is normal for the fan to spin during other operations that require heating, and not only during printing."
  13. Thank you Dustin again. The Air Manager fan comes on when the print core temperature rises but not the front fan - I suspect that this isn't right either?
  14. Thank you Dustin. How do I cause the fan to switch on? I have tried raising the temperature of one of the print cores but the fan does not switch on - which I expected it to. Am I right in thinking that once the print core(s) are above a certain temperature, the fan should come on automatically as the fan on my machine does not move at all.
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