SUNLU Rainbow PLA 1.75mm Review: Specs, Pros and Cons
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This sunlu rainbow pla 1 75mm review covers the SUNLU Rainbow PLA filament. It features a 1.75mm diameter with a ±0.02mm tolerance. The material offers a pearly surface finish. Color transitions occur every eight meters in the new version. This allows more color variations in smaller prints. The filament is vacuum-sealed with desiccant to prevent moisture absorption. It is designed for most FDM 3D printers and pens. The product comes in various rainbow color combinations. Each spool weighs 2.2 pounds. This setup ensures consistent printing without bubbles or blockages.
What stands out
- 1.75mm diameter with ±0.02mm dimensional accuracy
- Pearly surface finish for unique visual effects
- Color changes every eight meters for detailed items
- Vacuum-packed with desiccant to keep filament dry
- Compatible with most FDM 3D printers and pens
Who it fits
Good fit for
You should choose this filament if you want vibrant, multi-colored prints for decorations or gifts. The tight diameter tolerance ensures reliable feeding in most FDM printers. The pearly finish adds a unique look to your models. It is ideal for users who prefer easy printing without warping or tangling. The vacuum packaging keeps the material dry during transport. This makes it a practical choice for hobbyists creating detailed, colorful objects.
Who should skip it
You should look at another option if you need precise, solid-color prints. The rainbow effect may not suit projects requiring uniform hues. If you print at high speeds, note the recommended max is 60 mm/s. The color transitions happen every eight meters, which might be too frequent for larger items. Users seeking matte or glossy finishes should consider other variants. This filament is best for those who specifically want multi-colored results.
Verdict: This filament is a solid choice for colorful, decorative prints on standard FDM printers. The tight tolerance and vacuum packaging help ensure a smooth printing experience.
Key specs explained for this filament
Filament Diameter: 1.75mm
This is the standard thickness for most FDM 3D printers and pens. You can load it into your machine without needing adapters or special extruders. It ensures smooth feeding into the hotend. If your printer uses 2.85mm or 3mm rods, this product will not fit. Stick to 1.75mm for compatibility with the widest range of consumer hardware.
Dimensional Accuracy: ±0.02mm
This tight tolerance means the filament width varies by only two hundredths of a millimeter. Consistent diameter prevents clogs and ensures uniform extrusion. You get fewer failed prints and better layer adhesion. Compare this to cheaper filaments with ±0.05mm variance, which often cause under-extrusion. This precision helps you achieve reliable, high-quality results on every job.
Material Type: PLA
Polylactic acid is a bioplastic known for being easy to print with. It requires no heated bed for most models and produces minimal warping. You can print at lower temperatures than ABS or PETG. It is ideal for beginners or detailed miniatures. The material is rigid and strong, making it suitable for decorative items, prototypes, and functional parts that do not face high heat.
Surface Finish: Pearly
The filament has a glossy, pearlescent appearance rather than a matte or standard plastic look. This adds visual depth and a unique shine to your prints. You do not need post-processing to get a nice finish. The effect is best seen in smaller items where the light reflects off the curves. It distinguishes your models from standard white or black PLA prints.
Max Print Speed: 60 mm/s
The manufacturer recommends printing between 40 and 60 mm/s for optimal results. This speed balances quality and time. Going faster may cause stringing or poor layer bonding with this specific rainbow blend. Slower speeds ensure the color transitions remain distinct. Use this range as a baseline, then adjust based on your printer’s mechanical capabilities and the complexity of your model.
Design And Build Quality
According to the listing, this SUNLU Rainbow PLA filament uses a standard 1.75mm diameter with a strict dimensional accuracy of ±0.02mm. This tight tolerance helps prevent clogs and ensures consistent feeding into your extruder. The material is a polylactic acid (PLA), which is known for being easy to print. It offers a pearly surface finish that gives prints a unique, smooth look. You can expect color transitions to occur every eight meters in the new version. This faster change rate allows for more vibrant color variations, even in smaller items. The specific colorway listed is Red-Cyan-Blue-Purple, though other rainbow options are available.
The filament comes in a 2.2-pound spool. This weight is standard for hobbyist use and fits most desktop 3D printers. The listing notes that the filament is vacuum-packed with a desiccant. This packaging choice helps keep the material dry during transport. Moisture can ruin PLA prints, so this sealed design aims to maintain quality. You should store the filament in a dry place after opening. The recommended print speed is up to 60 mm/s. This moderate speed allows for clean layer adhesion. You can use this filament for decorations, gifts, or general prototyping. It is compatible with most FDM printers and 3D pens. The layout of the color bands is designed to create visual interest without requiring complex slicer settings.
Setup And Everyday Use
Setting up this filament is straightforward because it comes vacuum-sealed with a desiccant packet. This packaging protects the material from moisture during transit. You should store the filament in a dry place after opening to maintain print quality. The listing notes that the product undergoes rigorous drying before packaging to eliminate bubbles and blocking. This preparation helps ensure smooth feeding into your printer’s extruder.
Daily use requires specific temperature and speed settings for optimal results. You should set your nozzle temperature between 200 and 210°C. The heated bed should be maintained at 50 to 60°C. For print speed, you can choose settings between 40 and 60 mm/s. These parameters help manage the unique properties of the rainbow transition material. The filament is compatible with most FDM 3D printers and 3D pens. You do not need special adapters or extruders due to the standard 1.75mm diameter.
The color transitions occur every eight meters in the new version. This allows for more frequent color changes in smaller items. The first color printed is random. You can insert the filament into side holes after use to avoid tangling. The pearly surface finish gives prints a unique touch. The material is designed to be tangle-free and knot-free. This consistency supports reliable printing for decorations or gifts. The tight dimensional accuracy of ±0.02mm further reduces the risk of clogs during everyday printing tasks.
Before you buy this filament
You should verify your printer accepts 1.75mm PLA before loading this spool. Most FDM machines handle this diameter, but older models may need adjustments. The recommended print speed is 40 to 60 mm/s. Sticking to this range helps manage the frequent color shifts. You will likely need a dry storage solution after opening the vacuum seal. The listing mentions rigorous drying before packaging, but ambient humidity affects prints quickly. Keep the filament away from moisture to prevent bubbles. This rainbow option suits decorative projects like holiday ornaments or gifts. It may not be ideal for functional parts requiring uniform color. Consider your printer’s hotend temperature limits, as 200 to 210°C is suggested. Ensure your heated bed reaches 50 to 60°C for proper adhesion. This material fits well among other PLA choices for creative, multi-colored builds.
Check before you buy
- Confirm your printer supports 1.75mm PLA diameter.
- Check if your hotend handles 210°C max.
- Ensure your bed reaches 60°C for adhesion.
- Plan for dry storage after opening.
The product at a glance
SUNLU Rainbow PLA 1.75mm
Best for: Vibrant multi-colored prints with frequent shifts
- Material Type
- PLA
- Filament Diameter
- 1.75mm
- Net Weight
- 1kg
- Max Print Speed
- 60mm/s
- Dimensional Accuracy
- ±0.02mm
- Surface Finish
- Pearlescent
View on Amazon: SUNLU Rainbow PLA 1.75mm Affiliate link
This SUNLU PLA filament features a 1.75mm diameter with a pearly surface finish. It uses a rainbow color scheme that shifts every 8 meters, offering more color variations in small prints. The material maintains a dimensional accuracy of ±0.02mm and is vacuum-sealed with desiccant to prevent moisture absorption. It is designed for easy printing with no blocking or bubbles, making it suitable for most FDM 3D printers.
Pros
- Rainbow color changes every 8 meters for high variation
- Dimensional accuracy of ±0.02mm ensures consistency
- Vacuum-sealed packaging with desiccant keeps filament dry
- Pearly surface finish provides a unique look
Cons
- First color is random, limiting design predictability
- Recommended max print speed is limited to 60 mm/s
- Specific temperature range of 200-210°C required
Good fit if
- You want vibrant, multi-colored prints with frequent color shifts
- You need reliable dimensional accuracy for precise parts
- You prefer vacuum-sealed filament to avoid moisture issues
Skip if
- You require high-speed printing above 60 mm/s
- You need predictable, consistent single-color prints
- You prefer filament without a pearly finish
Verdict: SUNLU PLA Rainbow 1.75mm Filament is a solid choice for makers who want vibrant, multi-colored prints with frequent color shifts. It suits those who value dimensional accuracy and moisture protection in their materials.
Specifications side by side
| Spec | SUNLU Rainbow PLA 1.75mm |
|---|---|
| Material Type | PLA |
| Filament Diameter | 1.75mm |
| Net Weight | 1kg |
| Max Print Speed | 60mm/s |
| Dimensional Accuracy | ±0.02mm |
| Surface Finish | Pearlescent |
| Color Printing | Multi-Color |
| Compatible Material | PLA |
| Size | 1.75Mm |
| Color Effect | Rainbow |
| Weight | 2.2 pounds |
| Color | Rainbow Red-cyan-blue-purple |
| Model | PLA Rainbow 02 |
Frequently asked questions
How often does the color change in this filament?
The color transitions every eight meters in the updated version. This interval allows for more distinct color variations within a single print. You will see shifts between red, cyan, blue, and purple hues as the material extrudes. This frequent change creates a vibrant rainbow effect without needing to manually swap spools.
What is the dimensional accuracy of the SUNLU Rainbow PLA?
The filament maintains a strict dimensional accuracy of ±0.02mm. This tight tolerance ensures consistent feeding into your extruder and helps prevent clogs. You can rely on this precision for reliable layer adhesion and smooth printing. The 1.75mm diameter fits most standard FDM 3D printers without requiring adapters.
What finish does this PLA provide?
This material offers a pearly surface finish. The pearly look adds a subtle sheen to your prints, enhancing the visual appeal of the rainbow colors. You get a polished appearance right off the bed. This finish complements the multi-colored design, making each layer stand out with a distinct luster.
Is this filament suitable for 3D pens?
Yes, the 1.75mm diameter is standard for most 3D pens and FDM printers. You can load it into your device without needing special extruders. The PLA material flows smoothly, allowing for detailed work. Just ensure your pen supports PLA, as some devices are optimized for ABS or other plastics.
How should I store this filament after opening?
Store the filament in a dry place after opening the vacuum-sealed package. The listing notes it comes with a desiccant packet to protect against moisture during transit. Keeping it dry maintains print quality and prevents issues like bubbling or stringing. Re-seal the spool in an airtight container if possible.
What is the recommended print speed for this material?
The recommended print speed is between 40 and 60 mm/s. Sticking to this range helps manage the frequent color shifts and ensures smooth extrusion. Faster speeds might cause uneven color distribution or layer issues. Slower speeds allow the material to cool properly, preserving the pearly finish and dimensional accuracy.