SUNLU PLA 3D Printer Filament Magenta 1 kg: problems, parts and running costs
Checked: 2026-10-26
Summary
SUNLU standard PLA in Magenta is a low-cost entry filament whose common complaints are stringing and over-extrusion versus PLA+, lower strength and brittleness, softening around 54 C, and moisture-related print defects. Running cost is per kg of filament ($10.29 sale / $18.99 regular at the SUNLU store, 2026-10) plus optional drying, with no subscription. It is a good buy at about $11/kg or less for prototypes and display parts; at $17/kg or more, compare PLA+ or other materials.
Common problems and fixes
- Lower strength and brittleness — a comparison site rates standard PLA below PLA+, PLA+ 2.0 and PLA Meta in strength and impact resistance, so it is a poor fit for load-bearing or impact parts. [4]
- Softens around 54 C — all SUNLU PLA-based variants soften near 54 C, consistent with the manufacturer’s Vicat softening temperature of 54 C and heat deflection temperature of 55 +/- 5 C; unsuitable for hot environments such as car interiors. [1][4]
Parts and consumables
- Filament spool (1 kg) — SUNLU store listed standard PLA from $10.29/kg on sale (regular $18.99/kg) at the time of check; a 2023 review reported $12.99/kg; consumed per print and replaced as needed. [2][3]
Yearly running cost
Depends on usage volume, which the sources do not quantify. Cost is per kg of filament: $10.29 sale / $18.99 regular at the SUNLU store (2026-10) and $12.99/kg in a 2023 review, plus optional desiccant or a dryer and electricity for drying at 40-50 C. No subscription or capsule lock-in. Not enough data for a typical annual figure.
When it is a good buy
At or below about $11/kg: strong value for beginners, prototypes and display parts. $12-16/kg: fair value; compare with PLA+ if strength or bed adhesion matters. $17-20/kg: weak to fair, where the store’s regular $18.99/kg sits. Above $20/kg: weak value for standard PLA; step up to PLA+, PLA+ 2.0 or PLA Meta. SUNLU store snapshot, 2026-10: standard PLA from $10.29/kg on sale (regular $18.99/kg), with 6 kg bundles available. Named alternatives: SUNLU PLA+ (better bed adhesion and strength), PLA+ 2.0 and PLA Meta (higher strength and impact), or competing entry filaments when paying about $19/kg or more. [2][3][4]