Verified Engineering EngineInteractive 2D Schematic

PLA+ / Tough PLA on Bambu Lab (Reusable Spool) Spool Tare & Length Calculator

Weigh your Bambu Lab (Reusable Spool) spool on a kitchen scale to instantly see remaining meters, feet, and percentage left for PLA+ / Tough PLA (1.24 g/cm³).

Calculated Benchmark Answer

An empty Bambu Lab (Reusable Spool) spool weighs exactly 250g (Plastic). A full 1kg net spool of 1.75mm PLA+ / Tough PLA (density 1.24 g/cm³) contains 335.3 meters (1100.1 feet) of filament.

Input Parameters & Presets

1.24 g/cm³

Pre-loads exact volumetric density required to calculate length.

Tare: 250g

Pre-loads empty spool deduction (Plastic).

g(44.1 oz)
Min: 250 g83%Max: 1450 g

Weigh your half-used spool directly on any digital kitchen scale.

Preset Values: Quick Weight Presets
Job Electricity Costing$0.14
110W
2D Orthographic Cross-Section
100% REMAINING
PLA+ / Tough PLA335.3m1100 ft
NET: 1000g•DIA: 1.75mm•100% REM
Remaining LengthKEY RESULT
335.3meters
1100.1 ft

100% of 1000g reference spool

Net Filament Weight
1000grams
35.27 oz

Excludes 250g empty tare

Electricity Cost
$0.14USD

8 hrs on Bambu Lab P1S

Material Density
1.24g/cm³

1.75mm diameter profile

Verified Material Reference Spec

Order Fresh 1kg Spool of PLA+ / Tough PLA

High-speed, tangle-free PLA+ / Tough PLA filament with ±0.02mm tolerance for reliable prints.

Check Amazon PriceSearch reference

Kitchen Scale Quick-Lookup: PLA+ / Tough PLA on Bambu Lab (Reusable Spool)

Read your digital kitchen scale directly. Tare deduction of 250g (Plastic) is already calculated below:

Spool StatusTotal Scale ReadingNet FilamentRemaining MetersRemaining FeetPercent Left
Low Spool400g150g50.3m165 ft15%
Quarter Spool500g250g83.8m274.9 ft25%
Half Spool750g500g167.6m549.9 ft50%
Three-Quarter Spool1000g750g251.5m825.1 ft75%
Full 1kg Spool1250g1000g335.3m1100.1 ft100%

Bambu Lab (Reusable Spool) Spool Tare Weight vs Competitors

Compare empty spool tare weights and resulting filament meter yields for PLA+ / Tough PLA (1.75mm).

Material / SpecificationEmpty TareMaterial1kg YieldFlange Dia
Bambu Lab (Reusable Spool)ACTIVE250gPlastic335.3mØ 200mm
eSun (Clear Plastic Spool)245gPlastic335.3mØ 200mm
eSun (Eco Cardboard Spool)135gCardboard335.3mØ 200mm
Polymaker (Panchroma Cardboard)140gCardboard335.3mØ 200mm
Prusament (Honeycomb Plastic + Core)200gPlastic335.3mØ 200mm
Hatchbox 3D (Black Plastic)230gPlastic335.3mØ 200mm

Step-by-Step Math: How We Calculate PLA+ / Tough PLA Length

Exact formulas and linear density substitutions for PLA+ / Tough PLA (1.24 g/cm³) on a Bambu Lab (Reusable Spool) spool.

Step 1: Subtract Empty Spool Tare Weight1000.0g net filament
Formula: W_net = W_total - W_tare
Calculation: 1250g - 250g = 1000.0g net filament

Deducting the verified 250g empty tare weight of the Bambu Lab (Reusable Spool) (Plastic) spool leaves the exact net plastic mass.

Step 2: Calculate 1.75mm Cross-Sectional Area0.024053 cm²
Formula: A = π × (d / 20)²
Calculation: 3.14159 × (0.0875)² = 0.024053 cm²

Volumetric cross-sectional area in square centimeters for 1.75mm filament.

Step 3: Calculate Printable Length in Meters & Feet335.3m (1100.1ft)
Formula: L = W_net / (ρ × A × 100)
Calculation: 1000g / (1.24 g/cm³ × 0.024053 cm² × 100) = 335.3m (1100.1ft)

Dividing net mass by the linear density of PLA+ / Tough PLA (1.24 g/cm³) yields the printable length.

MetriFab Precision GuaranteeFormulas cross-verified against Blum, Smooth-On, Polymaker, and eSun technical data sheets.
Zero-Lag SSG

Engineering Specifications & Troubleshooting Guide: PLA+ / Tough PLA & Bambu Lab (Reusable Spool) Hardware

Factory-tested parameters, common failure modes, and workbench best practices.

Maker Pro Tips
  • Slightly higher temperature enhances layer fusion up to 2x higher impact strength.
  • The empty Bambu Lab (Reusable Spool) spool weighs 250g (Plastic). Flange outer diameter is 200mm with a 82mm hub bore.
Most Critical Mistake to Avoid

Using generic PLA profiles without bumping nozzle temperature by 10°C.

Recommended Machine Settings
fan Speed100%
speed80-300 mm/s
enclosure NeededNo
retraction0.8mm direct
empty Spool Tare250 grams
spool MaterialPlastic
flange Diameter200 mm
hub Diameter82 mm

Frequently Asked Questions: PLA+ / Tough PLA on Bambu Lab (Reusable Spool)

Spool tare weight, density, moisture absorption, and kitchen scale tips.

Q1How much does an empty Bambu Lab (Reusable Spool) spool weigh?
An empty Bambu Lab (Reusable Spool) spool has a factory tare weight of 250 grams (Plastic construction). Subtract this tare weight from your scale reading to get the exact net filament weight remaining.
Q2How many meters of filament are in a 1kg spool of PLA+ / Tough PLA?
A full 1,000 gram spool of standard 1.75mm PLA+ / Tough PLA (density 1.24 g/cm³) contains approximately 335.3 meters (1100.1 feet) of printable filament.
Q3Is the Bambu Lab (Reusable Spool) spool compatible with the Bambu AMS?
Bambu Lab (Reusable Spool) spools have a flange diameter of 200mm and width of 67mm. It fits smoothly inside AMS and external drybox rollers.