Verified Engineering EngineInteractive 2D Schematic

PLA-CF (Carbon Fiber 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-CF (Carbon Fiber PLA) (1.29 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-CF (Carbon Fiber PLA) (density 1.29 g/cm³) contains 322.3 meters (1057.4 feet) of filament.

Input Parameters & Presets

1.29 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-CF (Carbon Fiber PLA)322.3m1057 ft
NET: 1000g•DIA: 1.75mm•100% REM
Remaining LengthKEY RESULT
322.3meters
1057.4 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
1.29g/cm³

1.75mm diameter profile

Verified Material Reference Spec

Order Fresh 1kg Spool of PLA-CF (Carbon Fiber PLA)

High-speed, tangle-free PLA-CF (Carbon Fiber PLA) filament with ±0.02mm tolerance for reliable prints.

Check Amazon PriceSearch reference

Kitchen Scale Quick-Lookup: PLA-CF (Carbon Fiber 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 Spool400g150g48.3m158.5 ft15%
Quarter Spool500g250g80.6m264.4 ft25%
Half Spool750g500g161.1m528.5 ft50%
Three-Quarter Spool1000g750g241.7m793 ft75%
Full 1kg Spool1250g1000g322.3m1057.4 ft100%

Bambu Lab (Reusable Spool) Spool Tare Weight vs Competitors

Compare empty spool tare weights and resulting filament meter yields for PLA-CF (Carbon Fiber PLA) (1.75mm).

Material / SpecificationEmpty TareMaterial1kg YieldFlange Dia
Bambu Lab (Reusable Spool)ACTIVE250gPlastic322.3mØ 200mm
eSun (Clear Plastic Spool)245gPlastic322.3mØ 200mm
eSun (Eco Cardboard Spool)135gCardboard322.3mØ 200mm
Polymaker (Panchroma Cardboard)140gCardboard322.3mØ 200mm
Prusament (Honeycomb Plastic + Core)200gPlastic322.3mØ 200mm
Hatchbox 3D (Black Plastic)230gPlastic322.3mØ 200mm

Step-by-Step Math: How We Calculate PLA-CF (Carbon Fiber PLA) Length

Exact formulas and linear density substitutions for PLA-CF (Carbon Fiber PLA) (1.29 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 & Feet322.3m (1057.4ft)
Formula: L = W_net / (ρ × A × 100)
Calculation: 1000g / (1.29 g/cm³ × 0.024053 cm² × 100) = 322.3m (1057.4ft)

Dividing net mass by the linear density of PLA-CF (Carbon Fiber PLA) (1.29 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-CF (Carbon Fiber PLA) & Bambu Lab (Reusable Spool) Hardware

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

Maker Pro Tips
  • Prints as easily as standard PLA while providing superior flexural modulus.
  • 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 brass nozzles; carbon fibers will widen the nozzle orifice rapidly.

Recommended Machine Settings
fan Speed80%-100%
speed80-250 mm/s
enclosure NeededNo
retraction0.8mm direct
empty Spool Tare250 grams
spool MaterialPlastic
flange Diameter200 mm
hub Diameter82 mm

Frequently Asked Questions: PLA-CF (Carbon Fiber 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-CF (Carbon Fiber PLA)?
A full 1,000 gram spool of standard 1.75mm PLA-CF (Carbon Fiber PLA) (density 1.29 g/cm³) contains approximately 322.3 meters (1057.4 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.