Dialing In Perfect Prints: Best Practices for Printing with PLA+ and PLA Basic

There’s a common misconception among newer 3D printer owners that PLA is “the easy material” and therefore doesn’t require much thought when it comes to settings. It’s true that PLA is more forgiving than materials like ABS or nylon, but forgiving isn’t the same as foolproof. Plenty of failed prints — stringing, warping corners, weak layer bonds, rough overhangs — happen with PLA specifically because users assume default slicer settings will handle everything.

Whether you’re working with a tougher PLA+ formulation or a standard PLA Basic spool, understanding how to properly tune your printer for the material in front of you makes the difference between mediocre results and genuinely impressive prints. This guide walks through the practical settings and habits that consistently produce better outcomes.

Start With Temperature Towers

Before committing to a full print, it’s worth running a temperature tower any time you switch to a new spool or brand, even within the same material family. A temperature tower prints a series of stacked sections at incrementally different nozzle temperatures, letting you visually compare layer adhesion, stringing, and surface gloss at each stage.

For most eSUN PLA products, a good starting range is 200–220°C. PLA+ formulations sometimes perform best a few degrees warmer than standard PLA because the added toughness additives can benefit from slightly improved flow, though this varies by printer and even by color batch. Running a quick tower with your specific PLA Filament takes less than an hour and saves far more time than troubleshooting a failed large print later.

Bed Adhesion Habits That Prevent Warping

PLA is far less prone to warping than ABS, but it isn’t immune, especially on larger prints with sharp corners. A few habits go a long way:

• Clean your bed surface with isopropyl alcohol before each print to remove oils from handling.
• Use a brim or skirt on prints with small footprints or tall, thin geometry.
• Keep bed temperature in the 50–60°C range; going much higher can actually cause elephant’s foot on the first layers.
• Level your bed properly and check your first-layer squish — a properly calibrated first layer looks slightly flattened, not perfectly round.

If you’re printing on a textured PEI sheet or glass bed, PLA generally adheres well without additional adhesives, but a fine layer of glue stick can add insurance on stubborn print geometries.

Cooling: The Setting Most Beginners Get Wrong

Unlike ABS, PLA benefits enormously from aggressive part cooling. Most slicers default to lower fan speeds that were originally tuned for other materials, and beginners often leave these settings unchanged. For clean overhangs, bridges, and fine details, set your cooling fan to 100% after the first two or three layers (which should print with reduced or no cooling to ensure proper bed adhesion).

This single adjustment tends to fix a surprising number of complaints about “stringy” or “blobby” prints, since much of what looks like a stringing problem is actually a cooling problem — the plastic isn’t solidifying fast enough to hold sharp features.

Retraction Settings for Clean Prints

Stringing between separate features is one of the most common complaints with PLA, and it’s almost always solvable through retraction tuning rather than temperature changes alone. For Bowden-style extruders, start around 5–6mm of retraction at 40–45 mm/s. Direct drive extruders typically need far less, often in the 1–2mm range, since there’s less slack in the filament path.

Run a retraction test tower alongside your temperature tower when trying a new spool — it takes only a few extra minutes and eliminates most guesswork.

Speed: Faster Isn’t Always Better

It’s tempting to push print speeds higher once you’ve had a few successful prints, but speed increases interact with cooling, retraction, and layer adhesion in ways that aren’t always obvious. For general-purpose prints, 40–60 mm/s remains a reliable range for both PLA+ and PLA Basic. Once your printer is well-tuned, PLA can often handle considerably faster speeds, but it’s worth increasing gradually rather than jumping straight to maximum speed, especially on detailed models.

Matching Settings to the Project, Not Just the Material

One habit that separates experienced makers from beginners is adjusting settings based on the specific print, not just the filament type. A functional bracket printed in PLA+ might call for higher infill (30–50%) and more perimeter walls (3–4) to maximize strength, while a decorative miniature printed in PLA Basic might prioritize thinner layers (0.1–0.12mm) and lower infill to save time and material, since strength isn’t the priority.

Thinking about the actual purpose of each print before you slice it, rather than reusing the same generic profile for everything, consistently produces better results across both material types.

Post-Processing Considerations

Both PLA+ and standard PLA respond well to light sanding, and PLA+ in particular can tolerate more aggressive post-processing like drilling or light machining thanks to its improved toughness. If you’re planning to paint a model printed in Basic PLA, a light primer coat helps even out layer lines before applying color, especially on larger flat surfaces where layer texture is more visible.

Keeping a Print Log

It sounds tedious, but keeping even a simple spreadsheet of settings, spool, and results for each print pays off quickly. Filament behavior can vary slightly between batches, even from the same manufacturer, and having a record of what worked previously saves considerable troubleshooting time down the road.

Conclusion

Good results with PLA aren’t automatic — they come from understanding how temperature, cooling, retraction, and speed interact with the specific material and project in front of you. Whether you’re working with a tougher PLA+ for functional parts or a standard PLA Basic for prototypes and decorative prints, taking the time to properly tune your settings will consistently produce cleaner, stronger, more reliable prints than relying on default profiles alone.

Frequently Asked Questions

1. What’s the ideal nozzle temperature for eSUN PLA+ and PLA Basic? Both generally print well between 200–220°C, with 210°C being a common starting point. It’s worth running a quick temperature tower on a new spool, since slight variations between batches can shift the ideal setting by a few degrees.
2. Why is my PLA print stringing between features? Stringing is usually a retraction or temperature issue rather than a fundamental material problem. Start by tightening your retraction distance and speed, and if stringing persists, try lowering your nozzle temperature slightly.
3. Should I use 100% cooling fan speed for all PLA prints? For most PLA prints, yes, after the first two or three layers. The first layers usually benefit from reduced cooling for stronger bed adhesion, but full cooling afterward keeps overhangs and bridges crisp.
4. Does PLA+ need different infill settings than PLA Basic? Not inherently, but since PLA+ is often chosen for functional parts, it makes sense to pair it with higher infill (30–50%) and additional perimeter walls for extra strength, whereas decorative prints in PLA Basic can often use lower infill to save time and material.
5. Why do my prints come out fine sometimes and fail other times with the same settings? This is often caused by filament moisture absorption or minor batch-to-batch variation rather than your slicer profile. Keeping filament stored properly in an airtight container and re-testing settings when opening a new spool helps minimize this inconsistency.