Verified Engineering EngineInteractive 2D Schematic

TPU 95A (Flexible Elastomer) on Sunlu (Slotted Plastic Spool) Spool Tare & Length Calculator

Weigh your Sunlu (Slotted Plastic Spool) spool on a kitchen scale to instantly see remaining meters, feet, and percentage left for TPU 95A (Flexible Elastomer) (1.21 g/cm³).

Calculated Benchmark Answer

An empty Sunlu (Slotted Plastic Spool) spool weighs exactly 210g (Plastic). A full 1kg net spool of 1.75mm TPU 95A (Flexible Elastomer) (density 1.21 g/cm³) contains 343.6 meters (1127.3 feet) of filament.

Input Parameters & Presets

1.21 g/cm³

Pre-loads exact volumetric density required to calculate length.

Tare: 210g

Pre-loads empty spool deduction (Plastic).

g(42.7 oz)
Min: 210 g83%Max: 1410 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
TPU 95A (Flexible Elastomer)343.6m1127 ft
NET: 1000g•DIA: 1.75mm•100% REM
Remaining LengthKEY RESULT
343.6meters
1127.3 ft

100% of 1000g reference spool

Net Filament Weight
1000grams
35.27 oz

Excludes 210g empty tare

Electricity Cost
$0.14USD

8 hrs on Bambu Lab P1S

Material Density
1.21g/cm³

1.75mm diameter profile

Verified Material Reference Spec

Order Fresh 1kg Spool of TPU 95A (Flexible Elastomer)

High-speed, tangle-free TPU 95A (Flexible Elastomer) filament with ±0.02mm tolerance for reliable prints.

Check Amazon PriceSearch reference

Kitchen Scale Quick-Lookup: TPU 95A (Flexible Elastomer) on Sunlu (Slotted Plastic Spool)

Read your digital kitchen scale directly. Tare deduction of 210g (Plastic) is already calculated below:

Spool StatusTotal Scale ReadingNet FilamentRemaining MetersRemaining FeetPercent Left
Low Spool360g150g51.5m169 ft15%
Quarter Spool460g250g85.9m281.8 ft25%
Half Spool710g500g171.8m563.6 ft50%
Three-Quarter Spool960g750g257.7m845.5 ft75%
Full 1kg Spool1210g1000g343.6m1127.3 ft100%

Sunlu (Slotted Plastic Spool) Spool Tare Weight vs Competitors

Compare empty spool tare weights and resulting filament meter yields for TPU 95A (Flexible Elastomer) (1.75mm).

Material / SpecificationEmpty TareMaterial1kg YieldFlange Dia
Sunlu (Slotted Plastic Spool)ACTIVE210gPlastic343.6mØ 200mm
Bambu Lab (Reusable Spool)250gPlastic343.6mØ 200mm
eSun (Clear Plastic Spool)245gPlastic343.6mØ 200mm
eSun (Eco Cardboard Spool)135gCardboard343.6mØ 200mm
Polymaker (Panchroma Cardboard)140gCardboard343.6mØ 200mm
Prusament (Honeycomb Plastic + Core)200gPlastic343.6mØ 200mm

Step-by-Step Math: How We Calculate TPU 95A (Flexible Elastomer) Length

Exact formulas and linear density substitutions for TPU 95A (Flexible Elastomer) (1.21 g/cm³) on a Sunlu (Slotted Plastic Spool) spool.

Step 1: Subtract Empty Spool Tare Weight1000.0g net filament
Formula: W_net = W_total - W_tare
Calculation: 1210g - 210g = 1000.0g net filament

Deducting the verified 210g empty tare weight of the Sunlu (Slotted Plastic 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 & Feet343.6m (1127.3ft)
Formula: L = W_net / (ρ × A × 100)
Calculation: 1000g / (1.21 g/cm³ × 0.024053 cm² × 100) = 343.6m (1127.3ft)

Dividing net mass by the linear density of TPU 95A (Flexible Elastomer) (1.21 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: TPU 95A (Flexible Elastomer) & Sunlu (Slotted Plastic Spool) Hardware

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

Maker Pro Tips
  • Print slowly (25-45 mm/s) to prevent filament buckling in drive gears.
  • The empty Sunlu (Slotted Plastic Spool) spool weighs 210g (Plastic). Flange outer diameter is 200mm with a 73mm hub bore.
Most Critical Mistake to Avoid

High retraction settings causing grinding in the extruder gears.

Recommended Machine Settings
fan Speed50%-100%
speed25-45 mm/s
enclosure NeededNo
retraction0.3mm direct
empty Spool Tare210 grams
spool MaterialPlastic
flange Diameter200 mm
hub Diameter73 mm

Frequently Asked Questions: TPU 95A (Flexible Elastomer) on Sunlu (Slotted Plastic Spool)

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

Q1How much does an empty Sunlu (Slotted Plastic Spool) spool weigh?
An empty Sunlu (Slotted Plastic Spool) spool has a factory tare weight of 210 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 TPU 95A (Flexible Elastomer)?
A full 1,000 gram spool of standard 1.75mm TPU 95A (Flexible Elastomer) (density 1.21 g/cm³) contains approximately 343.6 meters (1127.3 feet) of printable filament.
Q3Is the Sunlu (Slotted Plastic Spool) spool compatible with the Bambu AMS?
Sunlu (Slotted Plastic Spool) spools have a flange diameter of 200mm and width of 64mm. It fits smoothly inside AMS and external drybox rollers.