Comgrow 235x235mm Magnetic Build Surface vs Comgrow 0.4mm Brass Nozzle 25-Piece (2026): Key Differences
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You are looking at comgrow creality original ultra removable magnetic 3d printer vs 25pcs. These items both come from Comgrow and serve maintenance needs for 3D printing. One is a build surface, and the other is a set of replacement nozzles. They address different parts of the printer. The build surface affects adhesion and removal. The nozzles handle material extrusion. You need to know which part supports your current printing goals.
Key differences
| Aspect | Comgrow 235x235mm Magnetic Build Surface | Comgrow 0.4mm Brass Nozzle 25-Piece Kit |
|---|---|---|
| Product Type | Removable magnetic build surface | 25-piece nozzle kit |
| Primary Material | Magnetic flexible sheet | Brass |
| Key Dimension | 235x235mm | 0.4mm diameter |
| Included Accessories | Not listed | Cleaning needles, wrench, tweezers, box |
| Compatibility | Specific to compatible beds | Creality Ender and CR 10 series |
Which one should you choose?
Choose Comgrow 235x235mm Magnetic Build Surface if
- You need a new surface for better print adhesion and easy part removal.
- You want a flexible build plate that is magnetic and removable.
- You are replacing a worn or damaged build surface on your printer.
Choose Comgrow 0.4mm Brass Nozzle 25-Piece Kit if
- You need spare nozzles for regular maintenance and clog prevention.
- You require a kit with tools like cleaning needles and a hex wrench.
- You use 0.4mm nozzles for standard 1.75mm filament printing.
Verdict: Choose the magnetic build surface if your priority is print quality and easy part release. Select the nozzle kit if you need reliable spares and maintenance tools for your extruder. Both items serve distinct roles in printer upkeep.
Build Surface vs Nozzle Kit
primary function
The Comgrow 235x235mm Magnetic Build Surface provides a flexible platform for printing. Its magnetic design allows for easy removal of finished parts by peeling the surface off the base plate. This feature is essential for maintaining a flat printing area without damaging the bed. In contrast, the Comgrow 0.4mm Brass Nozzle 25-Piece Kit replaces the extruder tip. These nozzles control filament flow and define the minimum line width of your prints. You swap these when clogging occurs or when changing filament types. One item supports the print bed, while the other manages material deposition directly.
material composition
Build surface materials affect adhesion and release properties. The magnetic build surface uses a soft magnetic sticker combined with a top layer, typically textured PEI or similar material, to grip prints securely. The data does not specify the exact top coating, only that it is magnetic and removable. On the other hand, the replacement nozzles are made of brass. Brass offers excellent thermal conductivity, allowing for quick temperature changes. It also provides good abrasion resistance for standard filaments like PLA and ABS. The magnetic bed relies on mechanical adhesion, while the nozzles rely on thermal properties.
dimensions and fit
Size compatibility is critical for both items. The magnetic build surface measures 235 by 235 millimeters, which is approximately 9.25 inches square. It fits standard Creality Ender 3 series beds. The height is listed as 0.08 inches, providing a thin profile. The nozzle kit features a 0.4 mm diameter, which is the industry standard for most hobbyist printing. The input diameter is 1.75 mm, matching standard filament sizes. The nozzle kit includes cleaning tools and a storage box, adding practical value beyond the nozzle itself. The build surface is a single large component, while the nozzle kit contains multiple small parts.
compatibility
Both products are designed for the same ecosystem of printers. The magnetic build surface is compatible with Creality Ender 3 models that accept 235x235mm beds. This includes the Ender 3, Ender 3 Pro, Ender 3 V2, and similar variants. The nozzle kit explicitly lists compatibility with Ender 3, Ender 3 Pro, Ender 3 V2, Ender 3 Max, Ender 5 Pro, Ender 3 S1, Ender 3 S1 Pro, Ender 3 Neo, and CR 10 Series printers. Both items serve the same brand of machines. The nozzle kit covers a slightly broader range of specific model names in its description, ensuring you have spares for various extruder setups.
included accessories
The value of a kit often depends on what else is inside the box. The magnetic build surface is sold as a standalone replacement part. You receive the magnetic sheet and potentially a base plate depending on the variation, but no tools are included for installation. The nozzle kit is much more comprehensive. It includes 25 brass nozzles, 10 nozzle cleaning needles, a hexagon wrench, stainless steel tweezers, and a storage box. These tools allow you to perform maintenance immediately. The cleaning needles help clear clogs, and the wrench facilitates removal. This makes the nozzle kit a more complete maintenance solution.
Choose Your Comgrow Replacement Part
Users needing flexible print removal
You should choose the magnetic build surface if you print on the 235 by 235 millimeter area. The 0.08 inch height and black color allow for easy part removal. This flexible platform ensures your prints detach cleanly without damaging the bed or your finished models.
Printers facing clogged nozzles
You should choose the brass nozzle kit if you need to replace worn extruder tips. The 0.4 mm diameter and 1.75 mm input size ensure smooth filament flow. The set includes cleaning needles and a hex wrench, helping you maintain precision and avoid print head leaks effectively.
Owners of Creality Ender series printers
You should choose the nozzle kit if you own a Creality Ender 3, V2, or similar model. These 0.4 mm brass nozzles offer high precision with minimal diameter error. The kit provides twenty-five replacements and tools, ensuring compatibility with standard 1.75 mm PLA and ABS filaments.
The products compared
Comgrow 235x235mm Magnetic Build Surface
Best for: Standard 235x235mm bed upgrades
- Dimensions
- 235X235mm
- Color
- Black
- Weight
- 8.82 ounces
View on Amazon: Comgrow 235x235mm Magnetic Build Surface Affiliate link
This is a removable magnetic build surface for 3D printers. It measures 235x235mm and fits beds of that exact size. The surface is 0.08 inches thick and weighs 8.82 ounces. It comes in black. You need to ensure the magnetic layers align correctly during installation. It suits users who want easy print removal and a flat printing area for standard models.
Pros
- 235x235mm build plate size
- Removable magnetic design
- 0.08 inches thickness
- Black color
Cons
- Requires careful magnetic alignment during installation
- Single sheet included in standard option
- Limited to 235x235mm bed compatibility
Good fit if
- You need a 235x235mm build surface
- You want easy print removal via magnets
- You prefer a standard 0.08 inch thickness
Skip if
- You have a bed larger than 235x235mm
- You need a thicker build plate
- You want a non-magnetic surface
Verdict: Comgrow 235x235mm Magnetic Build Surface is a precise replacement for standard beds. It fits users who need exact 235x235mm dimensions and easy part removal.
Comgrow 0.4mm Brass Nozzle 25-Piece Kit
Best for: Ender 3 users needing standard 0.4 mm nozzles
- Primary Material
- Brass
- Nozzle Diameter
- 0.4 mm
View on Amazon: Comgrow 0.4mm Brass Nozzle 25-Piece Kit Affiliate link
This Comgrow set includes 25 MK8 brass nozzles with a 0.4 mm diameter. The package also contains 10 cleaning needles, a hex wrench, and tweezers. It fits Creality Ender 3 series and CR 10 printers. The smooth inner wall reduces clogging risks. You get a storage box for organization. This kit supports 1.75 mm PLA and ABS filaments. It is a practical replacement set for routine maintenance.
Pros
- Includes 25 brass nozzles for long-term use
- Comes with cleaning needles and hex wrench
- Compatible with Ender 3 and CR 10 series
Cons
- Only includes 0.4 mm diameter option
- Brass material wears faster than steel
- No extra nozzle sizes included
Good fit if
- You need spare nozzles for Ender 3 printers
- You print with 1.75 mm PLA or ABS
- You want a complete maintenance kit
Skip if
- You require larger or smaller nozzle sizes
- You print with 2.85 mm filament
- You need stainless steel nozzles
Verdict: Comgrow 25-Pack 0.4mm Brass Nozzles is a solid choice for Ender 3 owners who need reliable replacements. It provides the essential tools and parts for standard 0.4 mm printing tasks.
Specifications side by side
| Spec | Comgrow 235x235mm Magnetic Build Surface | Comgrow 0.4mm Brass Nozzle 25-Piece Kit |
|---|---|---|
| Primary Material | not stated | Brass |
| Dimensions | 235X235mm | not stated |
| Nozzle Diameter | not stated | 0.4 mm |
| Color | Black | not stated |
| Build Plate Size | 235x235mm | not stated |
| Weight | 8.82 ounces | not stated |
| Size | 1-Pack | not stated |
| Model | NEW-RCTT-FBA-1 | not stated |
Frequently asked questions
Can I use the Comgrow magnetic build surface on my Ender 3?
This surface is designed for printers with a 235 by 235 millimeter build volume. If your machine has a larger bed, such as the standard 250 millimeter size, this plate will not cover the entire area. It fits users who need exact dimensions for smaller print areas. Always verify your printer’s bed size before purchasing to ensure a proper fit.
What size are the nozzles in the 25-piece kit?
The kit contains nozzles with a 0.4 millimeter diameter. This is the standard size for most FDM 3D printing tasks. You get twenty-five pieces, which provides ample spares for maintenance or high-volume printing. The brass material ensures good heat conductivity for consistent filament flow.
How heavy is the magnetic build plate?
The magnetic build surface weighs 8.82 ounces. This lightweight design makes it easy to handle and swap out when needed. The compact size and moderate weight contribute to its stability during printing. It remains secure on the bed while allowing for easy part removal after the print finishes.
Is the build surface black or another color?
The magnetic build plate is black. This color choice helps you see contrast with many common filament colors. It also hides minor scratches or residue from previous prints better than lighter surfaces. The black finish is standard for many magnetic PEI plates on the market.
What is the thickness of the magnetic build plate?
The build surface is 0.08 inches thick. This specific thickness ensures it sits flush with your printer’s bed. It provides a stable foundation for your prints without interfering with the nozzle height calibration. The precise thickness is critical for maintaining consistent first-layer adhesion.
Do I need special tools to install these parts?
You typically need standard hex keys to swap nozzles and bed screws to secure the build plate. The magnetic surface adheres to the base without additional glue or tape. The nozzle kit includes the parts but not the tools. You will need your existing printer maintenance tools for installation.
Can I print with different nozzle sizes using this kit?
No, this specific kit only contains 0.4 millimeter nozzles. You cannot print with larger or smaller openings using these parts. If you need varied layer heights or detail levels, you must purchase separate nozzle kits. This set is best for users who stick to the standard 0.4 mm size.