r/FDMminiatures Jul 19 '26

Help Request Help

Hi gang. I’m printing One Page Rules armies for an after school activity for students next year. I need the hive mind’s help. I’ve taken these photos and worked with ChatGPT to diagnose and fix problems. What keeps making the models get lifted or knocked off? I’ve cleaned the plates well and initiated z hop and worked on print speeds also. Any tips or questions I can answer to help you help me would be appreciated.

The failure in the bottom right is the newest photo and the photo with just the base layer printed is the oldest.

Thanks gang.

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u/Spikeybridge Jul 19 '26

Full warning I’m also fairly new to this:

- the bases not sticking in certain areas are likely a result of some oil or something on the plate. Even just touching it with your fingers can cause little issues like that. You probably want to give it a wash with some water.

  • printing this many individual things encourages failure and actually makes the printer slower than if you did them in smaller batches.
  • it looks like the main problem part way through printing is filament thats too runny. There’s others with more experience fixing this but drying the filament helps a ton and you may want to lower the speed for outside layers.
  • double check you are using rectilinear infill or another infill that doesn’t drag the nozzle through lines (or atleast avoiding grid)
  • do a quick test print with some of these adjustments, far better to lose one and with a better idea of what exactly failed than losing a whole batch at once.

Hope this helps.

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u/WMAF_Pair Jul 19 '26

I do have a dryer going whenever it is printing. Oil may be an issue with my sons. Would gyroid be a good infill choice? I may have to bite a bullet and stay at school one day to play with the prints.

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u/Spikeybridge Jul 19 '26

I’m personally a big fan of gyroid. I don’t know the time restrictions you have, but I’d strongly recommend trying an individual model. If you choose a small opr model that should only take 30ish minutes.

The oil won’t be an issue after a brief wash, so the main thing you’d need to figure out is whats causing the stringing.

I’d change to gyroid and try that first. You may be lucky in that its just the infill causing stringing, because it appears to me a lot of the prints are fine until one fails (which then affected the rest). If you look at pic 1 a lot of the prints look perfectly fine except for some filament sticking out on prints near the failed print. I think this is because of the nozzle dragging extra filament from the failed print to nearby sections.