TPU 85A (Soft Flexible) on Polymaker (Panchroma Cardboard) Spool Tare & Length Calculator
Weigh your Polymaker (Panchroma Cardboard) spool on a kitchen scale to instantly see remaining meters, feet, and percentage left for TPU 85A (Soft Flexible) (1.18 g/cm³).
An empty Polymaker (Panchroma Cardboard) spool weighs exactly 140g (Cardboard). A full 1kg net spool of 1.75mm TPU 85A (Soft Flexible) (density 1.18 g/cm³) contains 352.3 meters (1155.8 feet) of filament.
Input Parameters & Presets
Pre-loads exact volumetric density required to calculate length.
Pre-loads empty spool deduction (Cardboard).
Weigh your half-used spool directly on any digital kitchen scale.
100% of 1000g reference spool
Excludes 140g empty tare
8 hrs on Bambu Lab P1S
1.75mm diameter profile
Order Fresh 1kg Spool of TPU 85A (Soft Flexible)
High-speed, tangle-free TPU 85A (Soft Flexible) filament with ±0.02mm tolerance for reliable prints.
Kitchen Scale Quick-Lookup: TPU 85A (Soft Flexible) on Polymaker (Panchroma Cardboard)
Read your digital kitchen scale directly. Tare deduction of 140g (Cardboard) is already calculated below:
| Spool Status | Total Scale Reading | Net Filament | Remaining Meters | Remaining Feet | Percent Left |
|---|---|---|---|---|---|
| Low Spool | 290g | 150g | 52.8m | 173.2 ft | 15% |
| Quarter Spool | 390g | 250g | 88.1m | 289 ft | 25% |
| Half Spool | 640g | 500g | 176.2m | 578.1 ft | 50% |
| Three-Quarter Spool | 890g | 750g | 264.2m | 866.8 ft | 75% |
| Full 1kg Spool | 1140g | 1000g | 352.3m | 1155.8 ft | 100% |
Polymaker (Panchroma Cardboard) Spool Tare Weight vs Competitors
Compare empty spool tare weights and resulting filament meter yields for TPU 85A (Soft Flexible) (1.75mm).
| Material / Specification | Empty Tare | Material | 1kg Yield | Flange Dia |
|---|---|---|---|---|
| Polymaker (Panchroma Cardboard)ACTIVE | 140g | Cardboard | 352.3m | Ø 200mm |
| Bambu Lab (Reusable Spool) | 250g | Plastic | 352.3m | Ø 200mm |
| eSun (Clear Plastic Spool) | 245g | Plastic | 352.3m | Ø 200mm |
| eSun (Eco Cardboard Spool) | 135g | Cardboard | 352.3m | Ø 200mm |
| Prusament (Honeycomb Plastic + Core) | 200g | Plastic | 352.3m | Ø 200mm |
| Hatchbox 3D (Black Plastic) | 230g | Plastic | 352.3m | Ø 200mm |
Step-by-Step Math: How We Calculate TPU 85A (Soft Flexible) Length
Exact formulas and linear density substitutions for TPU 85A (Soft Flexible) (1.18 g/cm³) on a Polymaker (Panchroma Cardboard) spool.
Deducting the verified 140g empty tare weight of the Polymaker (Panchroma Cardboard) (Cardboard) spool leaves the exact net plastic mass.
Volumetric cross-sectional area in square centimeters for 1.75mm filament.
Dividing net mass by the linear density of TPU 85A (Soft Flexible) (1.18 g/cm³) yields the printable length.
Engineering Specifications & Troubleshooting Guide: TPU 85A (Soft Flexible) & Polymaker (Panchroma Cardboard) Hardware
Factory-tested parameters, common failure modes, and workbench best practices.
- Requires fully constrained direct drive extruder with zero gap between gears and heatbreak.
- The empty Polymaker (Panchroma Cardboard) spool weighs 140g (Cardboard). Flange outer diameter is 200mm with a 55mm hub bore.
Printing over 30 mm/s causing filament bunching.
Frequently Asked Questions: TPU 85A (Soft Flexible) on Polymaker (Panchroma Cardboard)
Spool tare weight, density, moisture absorption, and kitchen scale tips.
Q1How much does an empty Polymaker (Panchroma Cardboard) spool weigh?
Q2How many meters of filament are in a 1kg spool of TPU 85A (Soft Flexible)?
Q3Is the Polymaker (Panchroma Cardboard) spool compatible with the Bambu AMS?
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