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I am new to 3D printing and have an Ender 5 Pro.

I have manually leveled the bed by setting the nozzle gap to 0.1 mm (via feeler gauges) and then printing a calibration print and manually adjusting the bed height as it prints. I can get perfect calibration prints using both a glass bed and a PEI bed, printing with a bed temp of 75 °C and a nozzle temp of 210 °C:

enter image description here

I’m now trying various other prints without success, as the print doesn’t adhere. See this example of a 1 mm thick bookmark, which I am printing with a brim to try and help :

enter image description here

I’m not sure what the experts here can ascertain from this failed print without all the slicing parameters. I’m a bit suspicious that the print appears to clump and I’m wondering if the soft extruded material is sticking to the PLA already laid down and if so, if I can address that?

I actually seemed to have more success with the original flexible bed with several successful prints.

The G-code for the calibration target: https://pastebin.com/Brc8R8Cs

and for the bookmark: https://pastebin.com/9AXaqiMw

I had to remove a lot of the G-code for the bookmark due to its size, so hopefully I've left the important stuff in.

I started printing by loading the models in CURA, slicing and exporting to an SD card. I didn't;t create a new project for each print and it took me a while to realise I was losing the slicing parameters I'd used each time, making it difficult or impossible to go back and just change one set of parms. I'm now creating a separate project, so hopefully from now on I can just tweak one or 2 parms.

Steve Ives
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3 Answers3

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Well I got a perfect print as follows:

  1. Loaded the .stl file.
  2. Set Cura to use the 'Good' profile downloaded from CHEPCLUB (recommended by a friend).
  3. Used Pritt-stick Scotch (glue stick) on the bed.

I was quite loath to use glue stick, as I thought heated beds etc didn't need it, but if that's what it takes then...

I even bought an enclosure a few days ago as the room the printer was in if fairly cool.

I'll try the exact same print without the glue and see if that works but at least I know know that I can get a perfect print and that a good calibration print isn't the be-all and end-all.

0scar
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Steve Ives
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First, heat the bed to printing temperature, let it "soak" for a few minutes, and then re-do your bed levelling.

Thermal expansion can mess with the level.

Criggie
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For a good adhesion the print bed should be free of any oil or fat. Wipe the print bed with pure alcohol just befor the start of printing.

Uwe
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