¶ Background
We have noticed a strong interest among our community members in sharing their experiences with J1/J1s upgrades and modifications. We greatly appreciate them. In this document, we have curated some of the most popular projects and included relevant advice. Additionally, we have compiled a comprehensive list of all modification projects completed by our community members thus far, providing a convenient resource for you to explore.
¶ Risks and Challenges
Please consider carefully before making any DIY modifications to your Snapmaker machines. This document provides community resources for reference. However, there is no guarantee it will help you complete DIY modifications, and the official support team will not be responsible for providing further support in this regard.
You will need to bear the risks or consequences that may arise from your DIY modifications to your Snapmaker machines. You will also forfeit any relevant after-sales warranty and/or support.
¶ Modification Overview
¶ 1. Raising the Top Panel
¶ 1.1 Popular Mod
Click here to get more information about the modification designed by Thomas Levendig.
¶ 1.2 Modification Benefits
- Supports cavity cooling; no need to remove the top panel when printing with PLA filament.
- Increases the space at the print head feed inlet and the top panel, reducing the friction of the feed tube with the top panel and lowering feed resistance; prevents excessive bending of the feed tube at the inlet, reducing the likelihood of material breakage.
¶ 1.3 Required Materials
| Materials | Quantity | How to Obtain | Source File | Printing File | Notes | Recommended Purchase Link |
|---|---|---|---|---|---|---|
| Top Panel Risers | 4 | 3D Print | download | download | Recommended to use PETG filament; print in J1/J1s copy mode. | / |
| Magnets | 8 | Purchase Online | / | / | Magnet Size: 10 mm × 2mm | click |
Source File refers to the model file in .stl format, while Printing File refers to the file that is ready for printing.
The purchase links provided in the article are only for the convenience of users and have no commercial purpose.
¶ 1.4 Precautions
It is recommended to print the top panel risers using PETG material in J1/J1s copy mode.
After the modification, avoid placing objects on the top of the machine to prevent bending and deformation of the top panel.
Ensure to disconnect the power supply before installing the top panel risers to avoid the risk of electric shock.
¶ 2. Print Head Cooling (Hot End Fan & Air Duct)
¶ 2.1 Popular Mod
Click here to get more information about the modification designed by ChrisUFO.
¶ 2.2 Modification Benefits
Enhances the cooling effect on models.
¶ 2.3 Official High-Speed Hot-end Fan vs Modified Fan Specifications
The official high-speed hot end fan is designed to improve the cooling speed and be beneficial for models that include overhangs, bridging, or require faster cooling.
| Specifications/ Fan Type | J1/J1s Original Fan | Official Upgrade Accessory: High-speed Hot End Fan | Popular DIY Mod: UFO Part Cooling Fan (with built-in 5015 fan) |
|---|---|---|---|
| Rated Voltage (VDC) | 24 | 24 | Please refer to the actual specifications and parameters of the fan from the specific brand and manufacturer purchased. |
| Maximum Airflow (CFM) | 3.31 | 3.74 | |
| Rated Speed (RPM) | 9600±15% | 12300±20% | |
| Noise Level (dB) | 40.3 | 44.2 | |
| Usage Scenarios | Meets most daily printing needs | Improve the cooling speed and be beneficial for models that include overhangs, bridging, or require faster cooling. | Enhances model cooling performance and print quality. |
¶ 3. Filament Internalization
¶ 3.1 Popular Mod
Click here to get more information about the modification designed by HMartinez.
¶ 3.2 Modification Benefits
- Simplifies the filament replacement process, making it convenient for storage and use.
- Storing filament inside the machine, as opposed to the back, helps keep them dry.
- Utilizes the temperature inside the machine during printing to help maintain an appropriate level of dryness for the filament.
¶ 3.3 Required Materials
| Materials | Quantity | How to Obtain | Source File | Printing File | Notes | Purchase Link |
|---|---|---|---|---|---|---|
| FrontLoadFilament_passthru | 2 | 3D Print | download | download | Recommended PETG filament; print in J1/J1s copy mode. | / |
| FrontLoadknob2 | 2 | 3D Print | download | download | ||
| FrontLoadscrew2 | 2 | 3D Print | download | download | ||
| Spool_baseV3 | 2 | 3D Print | download | download | ||
| spoolslider4 | 2 | 3D Print | download | download | ||
| M3×16 mm Pan Head Screws | 3 | Purchase Online | / | / | Screw specifications: M3×16 mm. | click |
| Bearings | 8 | Purchase Online | Bearing specifications: 608z(8*22*7). | click | ||
| PTFE | 3M | Purchase Online | PTFE specifications: 2 mm × 4 mm, 3 meters in total length required. | click |
Source File refers to the model file in .stl format, while Printing File refers to the file that is ready for printing.
¶ 3.4 Precautions
When replacing the PTFE tube, gently pry off the E-clip with tweezers to avoid damage or losing the E-clip.
¶ 4. Hot End Upgrade and Mod
¶ 4.1 Modification Benefits
While the standard hotend is suitable for most use cases, the new all-metal hotends aim to reduce clogging risks in scenarios like silk PLA and high-speed PLA printing.
When printing with Silk PLA with all types of official hot ends, we recommend using a printing speed of no more than 100mm/s. The nozzle temperature should be set at 220℃ or higher to minimize the risk of clogging and achieve a better silk-like texture on the printed surface.
¶ 4.2 Official Hot End Specifications Comparison
Please note that the Interference Fit assembled hot end does not support individual nozzle swapping, while the Threaded Connection assembled hot ends support individual nozzle swapping.
¶ 4.3 Popular Mod
Click here to learn discussions on DIY modifications with the original standard hot ends.
¶ 5. Increasing Upper Space of the Machine
¶ 5.1 Popular Mod
Click here to get more information about the modification designed by Wood Good.
¶ 5.2 Modification Benefits
- Simplifies the process of storing and accessing filaments.
- Allows for direct monitoring of filament status to prevent issues with filament shortages or jams.
- Reduces filament humidity, avoiding the need for an external drying box.
- Decreases feeding resistance, improving print success rate and quality.
¶ 5.3 Required Materials
| Materials | Quantity | How to obtain | Notes | Purchase Link |
|---|---|---|---|---|
| Vertical Beam | 4 | Purchase Online |
Official cross-section illustration of vertical beam:
Cross-section illustration of the vertical beam used in the FaceBook case: .png)
Since this case provides limited information, this is only for reference. |
click |
¶ Other Modifications
¶ 1. Print Head
¶ 1.1 Hot End Fixture
¶ Modification Benefits
When changing nozzles, supports easy alignment when tightening, reducing the difficulty of installing a new nozzle.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | Dylan |
¶ 1.2 Air Duct
¶ Modification Benefits
Slightly enhances the cooling effect of the model.
¶ 1.3 Hot End Fan & Air Duct
¶ Modification Benefits
Enhances the model cooling effect.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | ChrisUFO |
 |
download | 10E Shoes |
 |
download | JoJo100 |
 |
download | Rwide |
¶ 1.4 Feed Inlet
¶ Modification Benefits
Reduces feed resistance.
¶ 1.5 Extruder Rotation Display
¶ Modification Benefits
Visually indicates the status of the extruder's rotation.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | Modern Crafts |
¶ 2. Chassis
¶ 2.1 Raising the Top Panel
¶ Modification Benefits
- Supports cavity cooling; no need to remove the top panel when printing with PLA filament.
- Increases the space at the print head feed inlet and the top panel, reducing the friction of the feed tube with the top panel and lowering feed resistance; prevents excessive bending of the feed tube at the inlet, reducing the likelihood of material breakage.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | Dylan |
 |
download | edgett |
 |
download | Modern Crafts |
 |
download | i3_sven |
 |
download | i3_sven |
¶ 2.2 Filament Internalization
¶ Modification Benefits
- Simplifies the filament replacement process, making it convenient for storage and use.
- Storing filament inside the machine, as opposed to the back, helps keep them dry.
- Utilizes the temperature inside the machine during printing to help maintain an appropriate level of dryness for the filament.
¶ 2.3 Extended Filament Support Bracket
¶ Modification Benefits
Supports the placement of large spools of filament.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | Thomas Levendig |
¶ 2.4 Back
¶ Modification Benefits
Supports quick switching between rear and front filament placement methods.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | Modern Crafts |
¶ 2.5 Filter
¶ Modification Benefits
Reduces the emission of smoke and harmful gases when printing with ABS/ASA filament.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | HMartinez |
 |
download | Chankla |
 |
download | Modern Crafts |
¶ 2.6 Active Temperature Chamber
¶ Modification Benefits
Supports printing with high-temperature filament.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | HMartinez |
¶ 2.7 Accessory Storage Rack
¶ Modification Benefits
Neatly organizes accessories for easy storage and access.
¶ 2.8 Screen Protective Cover
¶ Modification Benefits
Prevents accidental touch or operation by children and pets.
| Modification Preview | Download Link | Creator |
|---|---|---|
 |
download | csb タケ |
¶ 3. Build Plate
¶ Modification Benefits
- Supports the use of a flexible platform to avoid waiting for cooling to remove models, saving time.
- Ensures a more continuous printing process by avoiding interruptions for model removal.
- Reduces wear on the PEI surface coating, lowering the cost of replacements.
| Modification Preview | Download Link | Creator |
|---|---|---|
Two 2mm double-sided magnetic sheets + 0.4mm spring steel sheet + 0.6mm PEI spring steel. |
No link available, shared by users in the domestic QQ group, with a total of three types made: 1. Multiple magnetic strips (2 mm +2 mm +0.5 mm) +0.6mm PEI spring steel for printing, the temperature is 10°C lower than PEI glass. 2. Custom 4-grid glass + 0.5mm magnetic strip + 0.6mm PEI spring steel, the temperature is almost the same. 3. Custom 4mm aluminum plate + 0.5mm magnetic strip + 0.6mm PEI spring steel, the temperature is higher than PEI glass platform, offering better performance. |
开开心心 |
¶ 4. Camera
¶ Modification Benefits
Supports the installation of a camera.
