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Looking Beyond the AMOLEN TPU 3D Printer? 6 Alternatives Worth a Look

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The AMOLEN 1.75mm Transparent Rainbow 95A TPU filament delivers precise flexibility and unique transparency for detailed, resilient prints. If you are searching for amolen tpu 3d printer alternatives, you might need a different material type, size, or brand. This original product excels in dimensional accuracy and moisture protection, but you may require rigid PLA for structural parts or smaller 200g spools for testing. The alternatives listed here were chosen because their specifications overlap with the original, ensuring you find compatible options for your FDM printer. Each choice offers distinct advantages in finish, weight, or elasticity. You can compare these specs to match your specific project needs. Whether you prioritize glossy finishes, glitter effects, or durable flexibility, these options provide reliable performance. The list covers seven products that share core traits like 1.75mm diameter and rainbow color effects. You will find choices for decorative prototypes, phone cases, and small-scale art. This guide helps you navigate the variety available without compromising on quality or compatibility. Explore the detailed specs below to select the best fit for your creative goals.

Our top pick: AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg).

How alternatives compare to TPU

AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g)

This four-pack of 200g spools offers the same flexible 95A TPU material and transparent rainbow finish as the original. You get four smaller rolls instead of one 1kg spool. This format is better if you want to test multiple color combinations without committing to a large roll. The dimensional accuracy and moisture protection remain consistent with the main spool. It suits makers who experiment frequently or have limited storage space. You sacrifice bulk volume for variety. The total weight is slightly higher at 2.65 pounds. This option is ideal for small batch testing where you need distinct color segments for different projects.

AMOLEN 1.75mm Translucent Rainbow PLA

This alternative switches from flexible TPU to rigid PLA while keeping the 1.75mm diameter and rainbow effect. It lacks the 95A Shore hardness flexibility of the original, making it unsuitable for parts that need to bend or stretch. However, it offers optical clarity and translucency for decorative items like lampshades or prototypes. The dimensional accuracy remains tight at +/- 0.02mm, ensuring smooth extrusion. You trade durability and elasticity for visual transparency and print stability. This choice is best for users who prioritize aesthetic detail and structural rigidity over the wear resistance and resilience of TPU.

Voxelab PLA Crystal Rainbow Pink Dolphin

This product uses PLA instead of TPU, so it does not offer the same flexibility or durability. It features a glittery pink dolphin rainbow finish rather than the transparent gloss of the original. The 1.75mm diameter ensures compatibility with your printer, but the material is rigid. This option is better for decorative pieces where visual impact matters more than mechanical performance. You give up the ability to create phone cases or flexible joints. It fits creators who want vibrant, sparkly prints for display. The weight matches the original at 2.2 pounds. Choose this if you need aesthetic variety and do not require elastic properties.

FilaBees Rainbow Candy TPU 1.75mm

This Rainbow Candy TPU matches the original in material type and 1.75mm diameter. It also features 95A Shore hardness, providing similar flexibility and elasticity for durable parts like phone cases. The key difference is the brand and specific color formulation. You get comparable wear resistance and print quality. This alternative is suitable if you need reliable flexible prints but prefer a different aesthetic or brand availability. The weight is consistent at 2.2 pounds. It maintains the necessary dimensional stability for FDM printing. Select this option if you want a proven TPU performance with a distinct candy-like rainbow appearance for functional, elastic projects.

YOOPAI Rainbow Silk PLA 1.75mm 250g

This option uses PLA with a silk finish instead of TPU. It lacks the 95A Shore hardness and flexibility of the original, making it rigid and brittle under stress. The rainbow effect provides visual appeal, but the material is not suitable for durable or elastic parts. It comes in smaller 250g increments, which is good for testing or small decorative items. The 1.75mm diameter ensures printer compatibility. You trade structural resilience for a smooth, glossy aesthetic. This is best for makers who prioritize visual detail in small-scale projects. It fits users who want vibrant, silk-finished prints without the need for flexibility or high impact resistance.

FLASHFORGE Silk PLA Rainbow Waltz 1.75mm

This Silk PLA Rainbow Waltz offers a smooth, glossy finish instead of the TPU flexibility of the original. It uses rigid PLA, so it cannot stretch or bend like the 95A Shore hardness material. The 1.75mm diameter and +/- 0.02mm accuracy ensure precise printing. This alternative is better for decorative items where surface quality is paramount. You lose the durability and elastic properties of TPU. The weight is consistent at 2.2 pounds. This option suits users who want premium aesthetic results for display pieces. It is ideal for projects requiring a high-end silk appearance rather than functional, wear-resistant components.

Quick picks

#ProductBest forPrice
1 AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg) Best overall Flexible, transparent rainbow prints Check price of AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg) on Amazon
2 AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g) Best premium Testing flexible multicolor prints in small batches Check price of AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g) on Amazon
3 AMOLEN 1.75mm Translucent Rainbow PLA Also great Clear decorative prototypes and lampshades Check price of AMOLEN 1.75mm Translucent Rainbow PLA on Amazon
4 Voxelab PLA Crystal Rainbow Pink Dolphin Also great Decorative glittery PLA prints Check price of Voxelab PLA Crystal Rainbow Pink Dolphin on Amazon
5 FilaBees Rainbow Candy TPU 1.75mm Best budget Durable, flexible parts like phone cases Check price of FilaBees Rainbow Candy TPU 1.75mm on Amazon
6 YOOPAI Rainbow Silk PLA 1.75mm 250g Best beginners decorative small prints Check price of YOOPAI Rainbow Silk PLA 1.75mm 250g on Amazon
7 FLASHFORGE Silk PLA Rainbow Waltz 1.75mm Best +/- 0.02mm glossy decorative prints Check price of FLASHFORGE Silk PLA Rainbow Waltz 1.75mm on Amazon

Our 7 picks

Best overall

AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg)

Best for: Flexible, transparent rainbow prints

Material Type
TPU
Filament Diameter
1.75mm
Net Weight
1kg
Dimensional Accuracy
+/- 0.02mm
Surface Finish
Glossy
Shore Hardness
95A

View on Amazon: AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg) Affiliate link

AMOLEN offers a 1kg spool of 95A Shore hardness TPU filament with a transparent rainbow finish. The 1.75mm diameter maintains a tight dimensional accuracy of +/- 0.02mm. It provides a glossy smooth surface and stretches three times its original length. This material suits users printing flexible, durable items like phone cases or gaskets. The vacuum-sealed packaging protects the filament from moisture before use.

Pros

  • 95A Shore hardness for flexible yet durable prints
  • 1.75mm diameter with +/- 0.02mm accuracy
  • Transparent rainbow color effect with glossy finish
  • Vacuum sealed to prevent moisture absorption

Cons

  • Smaller 1kg spool compared to 2kg or 4kg bundles
  • Requires drying before printing for best results
  • Print bed temperature is optional, not mandatory

Good fit if

  • You need flexible filament for durable, stretchable parts
  • You want a transparent rainbow aesthetic for crafts
  • You prefer vacuum-sealed packaging for moisture protection

Skip if

  • You require a larger 2kg or 4kg spool volume
  • You need glow-in-the-dark color effects
  • You prefer rigid PLA over flexible TPU

Verdict: AMOLEN Rainbow TPU 1.75mm delivers precise flexibility and unique transparency for detailed, resilient prints. It fits makers who value dimensional accuracy and moisture protection in smaller, manageable spools.

Best premium

AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g)

Best for: Testing flexible multicolor prints in small batches

Material Type
TPU
Filament Diameter
1.75mm
Net Weight
200g x 4
Surface Finish
Smooth
Color Printing
Multi-Color
Color Effect
Rainbow

View on Amazon: AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g) Affiliate link

This bundle offers four 200g spools of 1.75mm TPU filament in a transparent rainbow finish. It provides a smooth surface and flexible durability suitable for various FDM 3D printers. The set supports printing temperatures between 190-220°C and bed temperatures up to 60°C. You get a variety of colors in a compact package, making it ideal for testing flexible materials without committing to a full kilogram roll.

Pros

  • Includes four 200g spools for a total of 800g of filament
  • Transparent rainbow color effect for unique visual results
  • Compatible with most standard FDM 3D printers
  • Smooth surface finish with strong toughness

Cons

  • Smaller 200g spool size compared to standard 1kg rolls
  • Requires careful moisture control and drying for best results
  • Limited to flexible TPU material only

Good fit if

  • You want to test flexible TPU printing with multiple colors
  • You need smaller spools for compact storage or travel
  • You are using a direct drive extruder setup

Skip if

  • You require standard 1kg spools for large projects
  • You prefer rigid PLA or ABS materials
  • You need high-speed printing capabilities beyond standard TPU limits

Verdict: AMOLEN 4-Pack 200g Rainbow TPU Filament is a practical option for makers who want to experiment with flexible, multicolor prints without buying large quantities. It suits users who value color variety and manageable spool sizes for their FDM printer projects.

Also great

AMOLEN 1.75mm Translucent Rainbow PLA

Best for: Clear decorative prototypes and lampshades

Material Type
PLA
Filament Diameter
1.75mm
Net Weight
1KG
Dimensional Accuracy
±0.02 mm
Surface Finish
Translucent
Color Effect
Rainbow

View on Amazon: AMOLEN 1.75mm Translucent Rainbow PLA Affiliate link

AMOLEN offers a translucent 1.75 mm PLA filament with a rainbow nebula glaze finish. It maintains a dimensional accuracy of ±0.02 mm for consistent extrusion and stable flow. The material provides crystal-clear transparency and strong layer bonding. You can use it for lampshades, display models, or prototypes on most FDM printers. The 1 kg spool supports recommended nozzle temperatures between 190 and 220 °C.

Pros

  • Crystal-clear ice transparency with high light transmission
  • Precise 1.75 mm diameter with ±0.02 mm accuracy
  • Strong layer adhesion for durable prints
  • Compatible with standard FDM 3D printers

Cons

  • Only 1 kg spool weight compared to 2 kg or 4 kg bundles
  • Requires specific nozzle temperature range of 190-220 °C
  • Bed temperature limited to 30-60 °C

Good fit if

  • You need glass-like clarity for display models
  • You want consistent flow for complex geometries
  • You are printing ambient lighting elements

Skip if

  • You require opaque or solid color prints
  • You need flexible TPU material for durable parts
  • You prefer larger 2 kg or 4 kg spools

Verdict: AMOLEN Rainbow Nebula Glaze PLA Filament delivers clear, translucent prints with tight dimensional tolerance. It is a practical option for users who prioritize optical clarity and print stability over bulk volume.

Also great

Voxelab PLA Crystal Rainbow Pink Dolphin

Best for: Decorative glittery PLA prints

Material Type
PLA
Filament Diameter
1.75mm
Surface Finish
Glitter
Color Effect
Rainbow
Weight
2.2 pounds

View on Amazon: Voxelab PLA Crystal Rainbow Pink Dolphin Affiliate link

This Voxelab filament uses 1.75mm PLA with a glittery, transparent rainbow finish. The Pink Dolphin variant shifts between purple and pink every 18 to 20 meters. It prints smoothly with minimal warping and includes a desiccant for bubble-free extrusion. The 2.2-pound spool suits decorative models needing vibrant, shifting colors. It offers a 2-month warranty and 30-day guarantee for peace of mind.

Pros

  • 1.75mm PLA diameter for broad compatibility
  • Alternating transparent purple and bright pink segments
  • Ultra-fine glitter adds sparkling translucency
  • Vacuum-sealed with desiccant to prevent clogs

Cons

  • Only 2-month product warranty
  • Limited to PLA material properties
  • Specific color pattern may not suit all projects

Good fit if

  • You want decorative prints with shifting colors
  • You need glittery, translucent visual effects
  • You prefer bubble-free, smooth extrusion

Skip if

  • You require opaque, solid colors only
  • You need flexible TPU material
  • You want a longer warranty period

Verdict: Voxelab PLA Crystal Rainbow 1.75mm is ideal for creators seeking vibrant, glittery decorative pieces with consistent color shifts. It fits those prioritizing visual impact over material flexibility.

Best budget

FilaBees Rainbow Candy TPU 1.75mm

Best for: Durable, flexible parts like phone cases

Material Type
TPU
Filament Diameter
1.75mm
Net Weight
1kg
Shore Hardness
95A
Color Effect
Rainbow
Dimensions
7.87 × 7.87 × 2.13 inches

View on Amazon: FilaBees Rainbow Candy TPU 1.75mm Affiliate link

FilaBees offers a 1.75mm TPU filament with 95A Shore hardness for soft, flexible prints. The rainbow candy color adds visual interest to durable parts. It is designed for clog-free and bubble-free performance on standard FDM 3D printers. This filament suits users needing wear-resistant, elastic materials for items like phone cases or watch bands. You get a 2.2-pound spool ready for flexible applications.

Pros

  • 95A Shore hardness provides high elasticity and resilience
  • 1.75mm diameter ensures wide compatibility with FDM printers
  • Patented clog-free formula aims for smooth printing
  • Vacuum-sealed packaging helps maintain filament dryness

Cons

  • Requires pre-drying at 60˚C for 4-8 hours before use
  • Sensitive to high temperatures and humidity during storage
  • Limited to soft flexible parts rather than rigid structures

Good fit if

  • You need durable, flexible parts like phone cases
  • You want to print wear-resistant items for outdoor use
  • You are printing on standard FDM 3D printers

Skip if

  • You prefer rigid materials for structural components
  • You cannot store filament in a dry, ventilated environment
  • You want to print without pre-drying the filament

Verdict: FilaBees 1.75mm Rainbow TPU 95A delivers reliable flexibility for durable, elastic projects. It fits users who need wear-resistant parts and can manage proper storage and drying requirements.

Best beginners

YOOPAI Rainbow Silk PLA 1.75mm 250g

Best for: decorative small prints

Material Type
PLA
Filament Diameter
1.75mm
Net Weight
250g
Dimensional Accuracy
±0.02mm
Surface Finish
Silk
Color Printing
Multi-Color

View on Amazon: YOOPAI Rainbow Silk PLA 1.75mm 250g Affiliate link

This YOOPAI bundle includes four 250g spools of 1.75mm PLA filament with a silk finish and rainbow color transitions. The dimensional accuracy of ±0.02mm supports steady extrusion and consistent layering. The compact spool size fits most FDM printers with standard holders. You get practical amounts of color for small projects without storing large full-size spools. It suits those who want glossy, decorative prints with varied hues.

Pros

  • Silk finish with rainbow color transitions
  • 1.75mm diameter with ±0.02mm accuracy
  • Four 250g spools for varied colors
  • Precision winding for reliable feeding

Cons

  • Small 250g spool size
  • Requires adapter for Bambu Lab AMS
  • Only available in PLA material

Good fit if

  • You want glossy, decorative prints
  • You need small amounts of specific colors
  • You use standard FDM printers

Skip if

  • You need high-strength engineering materials
  • You use Bambu Lab AMS without adapters
  • You prefer large 1kg spools

Verdict: YOOPai Rainbow Silk PLA 1.75mm is a practical choice for makers who prioritize visual appeal and color variety in small-scale decorative projects. It delivers consistent results for users who value aesthetic detail over structural strength.

Best +/- 0.02mm

FLASHFORGE Silk PLA Rainbow Waltz 1.75mm

Best for: glossy decorative prints

Material Type
PLA
Filament Diameter
1.75mm
Net Weight
1kg
Dimensional Accuracy
+/- 0.02mm
Surface Finish
Silk
Color Effect
Rainbow

View on Amazon: FLASHFORGE Silk PLA Rainbow Waltz 1.75mm Affiliate link

This 1 kg spool of FLASHFORGE Silk PLA filament is designed for models with a glossy, premium finish. It features a 1.75 mm diameter with a tight tolerance of +/- 0.02 mm, ensuring consistent flow and reduced nozzle clogs. The Rainbow Waltz colorway provides vibrant, shifting hues ideal for decorative items. It is dried for 24 hours and vacuum-sealed to maintain quality during printing.

Pros

  • Silky smooth and glossy surface finish
  • Diameter tolerance of +/- 0.02 mm
  • 24-hour drying and vacuum sealing
  • Strong interlayer adhesion

Cons

  • Only available in 1 kg spool size
  • PLA material is not flexible
  • Limited to Rainbow Waltz colorway

Good fit if

  • You want a glossy, silk-like finish on prints
  • You need consistent filament diameter for reliable flow
  • You are printing decorative items with vibrant colors

Skip if

  • You require flexible materials for functional parts
  • You need larger spool sizes for high-volume printing
  • You prefer solid, single-color filaments

Verdict: FLASHFORGE Silk PLA 1.75mm Rainbow Waltz delivers a premium glossy finish and precise diameter for users prioritizing aesthetic quality in decorative prints.

Specifications side by side

Spec AMOLEN 1.75mm Transparent Rainbow 95A TPU (1kg) AMOLEN Transparent Multicolor Rainbow TPU (4 x 200g) AMOLEN 1.75mm Translucent Rainbow PLA Voxelab PLA Crystal Rainbow Pink Dolphin FilaBees Rainbow Candy TPU 1.75mm YOOPAI Rainbow Silk PLA 1.75mm 250g FLASHFORGE Silk PLA Rainbow Waltz 1.75mm
Material Type TPU TPU PLA PLA TPU PLA PLA
Filament Diameter 1.75mm 1.75mm 1.75mm 1.75mm 1.75mm 1.75mm 1.75mm
Net Weight 1kg 200g x 4 1KG not specified 1kg 250g 1kg
Dimensional Accuracy +/- 0.02mm not specified ±0.02 mm not specified not specified ±0.02mm +/- 0.02mm
Surface Finish Glossy Smooth Translucent Glitter not specified Silk Silk
Shore Hardness 95A not specified not specified not specified 95A not specified not specified
Color Printing not specified Multi-Color not specified not specified not specified Multi-Color not specified
Compatible Material TPU TPU PLA PLA TPU PLA PLA
Features High Speed not specified not specified not specified not specified not specified not specified
Target Audience not specified not specified not specified not specified not specified Beginners not specified
Size 1.75Mm 200g*4 1.75Mm 1.75Mm 1.75Mm 1.75Mm 1.75Mm
Finish Transparent Transparent Transparent Transparent not specified Silk Silk
Color Effect Rainbow Rainbow Rainbow Rainbow Rainbow Rainbow Rainbow
Dimensions 1.97 × 1.97 × 0.79 inches not specified not specified not specified 7.87 × 7.87 × 2.13 inches not specified not specified
Weight 2.2 pounds 2.65 pounds 2.2 pounds 2.2 pounds 2.2 pounds 2.9 pounds 2.2 pounds
Color Vibrant-tpu 95a Transparent Rainbow Rainbow Nebula Glaze Pink Dolphin Tpu Rainbow Candy Pla Bundle-250gx4-2230174 Rainbow Waltz
Model 3DTPURB 3DTPUSET #1-3DPLATPRBRYBP not specified FilaBees-TPU-Rainbow Candy BeginnerSeries Silk PLA-RW

Frequently asked questions

Can I use these rainbow filaments in any FDM printer?

Yes, most FDM printers accept 1.75mm filament. The listed options, including the AMOLEN PLA and Voxelab PLA, share this standard diameter. You must ensure your printer’s extruder can handle the specific material properties. Flexible TPU requires a direct drive extruder for reliable feeding. Rigid PLA works in both Bowden and direct drive setups.

Are rainbow TPU filaments flexible like standard rubber?

They offer significant flexibility but vary by hardness. The AMOLEN and FilaBees options use 95A TPU, which provides elastic resilience for phone cases. This rating balances softness with structural integrity. It is not as soft as silicone but holds shape well under stress. You get durable, bendable parts without permanent deformation.

Which rainbow filament is best for decorative lampshades?

The AMOLEN 1.75mm Translucent Rainbow PLA is ideal for this. Its translucent finish allows light to pass through while diffusing it evenly. The tight dimensional tolerance ensures consistent wall thickness for safety. You get clear, optical clarity that enhances the visual impact of your lamp design. It prioritizes aesthetic quality over bulk volume.

Do I need to dry TPU filament before printing?

Yes, drying is critical for TPU materials. The FilaBees Rainbow Candy TPU requires proper storage and drying to maintain quality. Moisture absorption causes bubbling and poor layer adhesion. You must store it in a dry box or dry it before use. This step ensures the flexible material prints smoothly and maintains its intended strength.

What is the difference between silk and transparent rainbow finishes?

Silk finishes, like the YOOPAI and FLASHFORGE options, provide a glossy, smooth surface. They reflect light to create a premium aesthetic for decorative prints. Transparent finishes, such as the AMOLEN TPU, offer clarity and unique light transmission. The silk look emphasizes surface texture, while transparency highlights internal geometry and color shifts in the material.

Can I print small batches with the 200g spool packs?

The AMOLEN Transparent Multicolor Rainbow TPU comes in a 4 x 200g pack. This format allows you to experiment with different colors without buying large quantities. It is practical for testing flexible multicolor prints in small batches. You get manageable spool sizes that fit easily into standard filament holders. This option suits users who value color variety for short projects.

Which rainbow filament has the highest dimensional accuracy?

The AMOLEN PLA and FLASHFORGE Silk PLA both specify +/- 0.02mm accuracy. This tight tolerance ensures consistent extrusion and reliable layer bonding. You get precise prints with minimal need for calibration adjustments. The FLASHFORGE option also highlights a smooth surface finish. These specs make them suitable for detailed prototypes where exact dimensions matter.

See also