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Bent layer heights on the first 1cm are related to the bed temperature. Lower it from 60C to 55C and that should be enough to help quite a bit. Normally you want the bed (actual surface glass temperature which is cooler than the 'bed temp") to be above 52C because PLA gets soft (like clay/plasticine) around 52C and this helps keep the PLA from warping off the bed.
But in your case you want higher accuracy as a higher priority so you want to lower the bed temp. You might even want to go down to 40C and put a layer of blue tape on there (wash the tape with isopropyl alcohol before printing on it to remove the waxy layer).
You do not want a draft shield as this will compound the problem. PLA needs tons of cooling.
It would also of course help to drop the speed farther and print slower. For extra accuracy I drop down to 25mm/sec (for all printing speeds!!!) and drop the temp by 10C.
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Bent layer heights on the first 1cm are related to the bed temperature. Lower it from 60C to 55C and that should be enough to help quite a bit. Normally you want the bed (actual surface glass temperature which is cooler than the 'bed temp") to be above 52C because PLA gets soft (like clay/plasticine) around 52C and this helps keep the PLA from warping off the bed.
But in your case you want higher accuracy as a higher priority so you want to lower the bed temp. You might even want to go down to 40C and put a layer of blue tape on there (wash the tape with isopropyl alcohol before printing on it to remove the waxy layer).
You do not want a draft shield as this will compound the problem. PLA needs tons of cooling.
It would also of course help to drop the speed farther and print slower. For extra accuracy I drop down to 25mm/sec (for all printing speeds!!!) and drop the temp by 10C.
Link to post
Share on other sites