A Neat Trick To 3D Print With Fewer Warping Issues
Originally published on hackaday.com by Lewin Day on 1 November 2024
Warping is a common issue in 3D printing, especially with materials like ABS, which tends to pull up from the print bed as it cools, causing dimensional inaccuracies and sometimes ruining the part. To tackle this, Jan suggests an innovative layering approach: printing ABS on top of a thin layer of PLA. This technique significantly improves bed adhesion, as PLA sticks well to the bed, while ABS adheres nicely to the PLA. By creating a stable foundation layer, the warping issue is greatly minimized.
Jan has experimented with other material pairings as well, finding that the trick is to identify two materials with good mutual adhesion and strong bed attachment. Once you have a compatible combination, a thin layer of the bed-adhering filament can work as an adhesive “helper” for the main material on top.
To set this up, Jan incorporates custom G-code for controlled filament changes, allowing a smooth transition between materials. This approach is a great hack for 3D printing enthusiasts looking to reduce warping without complex hardware modifications.
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