Tag: 3dprint

Tools You’ll Need

  • A hex key or screwdriver (depending on your printer’s bed screw type)
  • A piece of standard printer paper
  • Your 3D printer’s control interface (for moving the print head)

Step 1: Preheat Your Printer

Preheating your 3D printer to its typical printing temperature is crucial for accurate bed leveling. Temperature variations can cause the bed to expand or contract, affecting the leveling process. Preheat both the nozzle and the bed to ensure all components are at their working temperature.

Step 2: Home the Print Head

Use your printer’s control interface to home the print head. This positions the print head at its starting point, ensuring that the bed leveling process is consistent from one corner to the other.

Step 3: Disable Stepper Motors

After homing the print head, disable the stepper motors (usually through a menu option on your printer). This allows you to manually move the print head and bed without affecting their positions in the printer’s memory.

Step 4: Adjust the Bed Screws

  1. Position the nozzle over the first corner of the bed. Manually move the print head so the nozzle is positioned over the first adjustment screw at one corner of the bed.
  2. Use the paper method. Slide a piece of standard printer paper between the nozzle and the bed. You should feel a slight resistance when moving the paper. If the paper moves too freely, the bed is too low. If you can’t move the paper, the bed is too high.
  3. Adjust the screw. Using the hex key or screwdriver, turn the adjustment screw to raise or lower the bed. Clockwise turns will lower the bed (if the screw is on top of the bed) or raise it (if the screw is underneath), and counterclockwise turns will do the opposite. Adjust until you feel slight resistance on the paper.
  4. Repeat for all corners. Move the print head to each corner of the bed, repeating the adjustment process. It may take a few rounds of adjustments to get the level just right, as changing one corner can affect the others.

Step 5: Check the Center of the Bed

Once all corners are adjusted, move the nozzle to the center of the bed and check the resistance with the paper again. The center should also have slight resistance. If not, you may need to adjust the corners again or consider using a glass bed or bed leveling sensor for more uniform leveling.

Step 6: Test with a Print

After leveling, it’s a good idea to run a test print. Choose a design with a large, flat bottom layer to help you see how evenly it adheres across the entire bed.

Final Thoughts

Adjusting the bed screws on your 3D printer is a vital step in achieving the perfect first layer and ensuring successful prints. While it might seem tedious at first, with practice, it will become a quick and routine part of your printing process. Happy printing!

In the realm of 3D printing, material choice can significantly impact the outcome of your projects. Among the plethora of options, PETG stands out as a versatile and user-friendly filament. This post dives into the world of PETG, exploring its applications, benefits, and how it stacks up against other popular materials.

What is PETG?

PETG, or Polyethylene Terephthalate Glycol-modified, is a thermoplastic polyester that offers the best of both worlds: the simplicity and safety of PLA and the strength and durability of ABS. It’s known for its ease of use, excellent layer adhesion, and low shrinkage, making it a favorite among both beginners and experienced users.

Uses of PETG

PETG’s remarkable flexibility and strength make it suitable for a wide range of applications:

  • Functional Parts: Its durability is perfect for mechanical parts or items subject to stress.
  • Medical Devices: PETG is food-safe and can be sterilized, making it ideal for medical applications and containers.
  • Outdoor Use: With its UV and weather resistance, PETG is great for outdoor applications.
  • Cosmetic Prints: Its glossy finish and clear variants can produce visually appealing objects.

Pros of PETG

Durability and Flexibility: PETG offers superior durability and flexibility compared to PLA, without the brittleness.

Chemical Resistance: It’s resistant to many chemicals, making it suitable for practical applications in harsh environments.

Low Shrinkage: PETG minimizes warping, aiding in the production of large prints and complex geometries.

Food Safe: When used with a food-safe extruder, PETG can be suitable for creating containers that come into contact with food.

Cons of PETG

Stringing: PETG can produce stringing or oozing, requiring fine-tuning of retraction settings.

Adhesion: Its excellent layer adhesion can make it difficult to remove from the print bed without a proper surface or settings.

Temperature Sensitivity: Achieving the right printing temperature is crucial, as PETG can be prone to blobs and zits if printed too hot.

PETG vs. Other Materials

Vs. PLA: PETG is more heat resistant and durable than PLA, making it better for functional parts. However, PLA is easier to print with and provides more vibrant color options.

Vs. ABS: PETG offers similar strength and temperature resistance to ABS but with less toxic emissions and easier printability. ABS, however, can achieve a smoother finish through acetone smoothing.

PETG filament is a robust, versatile material that bridges the gap between PLA’s ease of use and ABS’s strength. Whether you’re crafting durable functional parts, medical devices, or weather-resistant outdoor applications, PETG presents a compelling choice. Understanding its pros and cons can help you leverage its capabilities to enhance your 3D printing projects.

Welcome to the essential guide for every new 3D printer enthusiast! Understanding when to replace your printer’s thermistor can save you time and improve your printing experience.

What is a Thermistor?

A thermistor monitors your 3D printer’s temperature, crucial for precise printing. It’s a resistor whose resistance changes with temperature, ensuring your printer operates within the right temperature range.

Signs of a Failing Thermistor

  1. Inconsistent Prints: If your prints start varying in quality without changes in settings, it could be a thermistor issue.
  2. Error Messages: Many printers display specific error messages indicating thermistor problems.
  3. Temperature Fluctuations: Sudden changes in temperature readings on your printer’s display are a red flag.

How to Test a Thermistor

  1. Disconnect and Measure: Turn off and unplug your printer. Use a multimeter to measure the thermistor’s resistance. Compare it to the standard resistance values provided in your printer’s manual.
  2. Temperature Test: Heat the thermistor (using a safe, controlled method). Measure resistance as it heats. If the resistance doesn’t change as expected, it’s time for a replacement.

Replacing a Thermistor

  1. Purchase the Right Replacement: Ensure you get a compatible thermistor for your printer model.
  2. Installation: Carefully follow your printer manufacturer’s guidelines for replacing the thermistor. This usually involves disconnecting the old thermistor and connecting the new one, securing it in place.

Conclusion

Keeping an eye on your thermistor’s performance is key to maintaining your 3D printer’s reliability and print quality. By recognizing the signs of a failing thermistor and knowing how to test and replace it, you’re set for a smoother 3D printing journey.

“I should have made two.”

That’s what I was thinking as one bb after the other hit me while I quickly pulled the trigger on my rented airsoft gun.

A few months ago, my son and I thought it would be fun to build an airsoft gun together. Why not? We have a 3d printer and it would be interesting to see how it all works together. Eager to try it out, we drove to the airsoft field almost as soon as it was done. I rented a gun for me and gave my son the Mosquito. I would soon regret that decision. The Mosquito’s claim to be “a menace on the battlefield” proved accurate and I was wishing I had one of my own.

There appear to be two broad categories of airsoft gun enthusiasts: one group of people enjoys building replicas of actual firearms. Interesting, old, or unique firearms tend to get a lot of attention and attention to the smallest detail is key. These firearms are often very elaborate and beautiful. The Mosquito does not fit in to this crowd.

The other group of airsoft enthusiasts purchases airsoft for the sole purpose of putting as many bb’s downrange as possible. This is where the Mosquito fits in and it does its job well, much to my own regret.

Unfortunately for me, the rented guns are semi-automatic, meaning that I have to pull the trigger for each bb to be shot. My son was probably shooting 50 bb’s at me for every one that I was shooting at him. Oh well.

Overall, this was a fun project. If you enjoy Airsoft and have a 3d printer, you might want to consider adding this one to your arsenal.

HYBRID AIRSOFT – MOSQUITO Open Beta 2 Handbook (google.com)

Just make sure that you make two.

In the intricate world of 3D printing, a smooth filament path is essential for flawless prints. However, every enthusiast eventually faces the challenge of broken filament stuck inside a PTFE (Polytetrafluoroethylene) tube. This guide will walk you through the steps to efficiently remove stuck filament, ensuring your 3D printing journey continues without a hitch.

Understanding the Problem

Filament can break off inside the PTFE tube due to various reasons such as abrupt printer movements, improper filament storage, or simply using low-quality filament. This creates a blockage that can affect extrusion quality and may even halt your printing projects altogether.

Tools You’ll Need

  • Needle-nose pliers
  • A 1.5mm or appropriate size Allen key or push rod
  • Heat gun or hair dryer
  • A new filament segment

Step-by-Step Solution

1. Preparation

First, ensure your 3D printer is turned off and cooled down to avoid any risk of injury. Remove any filament spools attached to the extruder to reduce tension in the system.

2. Accessing the PTFE Tube

Carefully disconnect the PTFE tube from the extruder and hot end. Depending on your printer model, this might require loosening a fitting or pressing down on a quick-release.

3. Heating the Stuck Filament

Using a heat gun or hair dryer, gently heat the section of the PTFE tube where the filament is stuck. The goal is to soften the filament without damaging the tube. Keep the heat source moving to distribute heat evenly.

4. Pushing the Filament Out

Once the filament softens, use the Allen key or push rod to gently push the stuck filament through the tube. If accessible, needle-nose pliers can be used to pull the filament out from the other end.

5. Clearing Any Residue

After removing the bulk of the filament, inspect the tube for any remaining bits. If necessary, repeat the heating and pushing process until the tube is clear.

6. Reassembly and Testing

Reattach the PTFE tube to your printer, ensuring all connections are secure. Feed a new filament segment through to test for smooth passage.

Preventive Measures

  • Use High-Quality Filament: Investing in good quality filament reduces the risk of breakage.
  • Regular Maintenance: Periodically check and clean your PTFE tube to prevent buildup that can lead to filament breakage.
  • Proper Storage: Store filament in a dry, cool place to prevent brittleness.

In the world of 3D printing, achieving the perfect print is akin to an art form, requiring precision, patience, and a keen eye for detail. One fundamental aspect often overlooked by novices and seasoned enthusiasts alike is the importance of keeping the 3D printer bed level. This seemingly minor detail can significantly impact the quality of your prints.

The Importance of a Level Bed

Preventing Warping and Misprints: A level bed ensures the first layer of your print adheres evenly across the surface. An uneven bed can lead to parts of the print not sticking to the bed, causing warping or complete print failures.

Enhancing Adhesion: Good adhesion is crucial for a successful print. A level bed ensures uniform contact between the print and the bed, reducing the chances of the print coming loose mid-process.

Improving Print Quality: A level bed contributes to consistent layer height. This uniformity is essential for achieving smooth surfaces and accurate dimensions in your prints, especially for detailed models.

Tips for Maintaining a Level Bed

  1. Regular Checks: Before each print, do a quick check to ensure the bed is level. Environmental changes can affect bed leveling over time.
  2. Use the Right Tools: Utilize feeler gauges or a piece of paper to check the gap between the nozzle and the bed at various points.
  3. Follow Manufacturer Instructions: Each printer has its method for bed leveling. Familiarize yourself with your printer’s specific process for best results.
  4. Consider Upgrades: If you’re struggling with leveling, consider upgrading to a printer with auto-leveling features or adding an aftermarket auto-leveling sensor.

Maintaining a level 3D printer bed is a critical yet often overlooked aspect of 3D printing. Regular checks and adjustments can vastly improve print adherence, quality, and success rates. By incorporating these practices into your 3D printing routine, you’ll notice a significant improvement in your prints and reduce the frustration of failed prints due to leveling issues.

In the world of 3D printing, achieving the perfect print often hinges on the fine balance of numerous factors. One such critical aspect is the choice of hotend, and for those utilizing all-metal hotends, an understanding of heat creep is essential. This post delves into why all-metal hotends are particularly susceptible to this phenomenon and how it impacts your printing process.

The All-Metal Hotend: A Brief Overview Before diving into heat creep, let’s briefly understand what an all-metal hotend is. Unlike traditional hotends that use a PTFE (Teflon) liner inside the heat break, all-metal hotends are entirely metal. This design allows for printing at higher temperatures and with a wider range of materials.

Defining Heat Creep Heat creep occurs when the heat from the hotend travels up to the colder parts of the extruder, causing the filament to soften or melt prematurely. This can lead to clogs, poor print quality, and even extruder failure.

Why All-Metal Hotends Are More Susceptible

  1. Material Conductivity: Metal, being a better conductor of heat than PTFE, allows heat to travel up the heat break more efficiently. This increased conductivity makes all-metal hotends more prone to heat creep.
  2. High-Temperature Printing: All-metal hotends are often used for their ability to handle high-temperature materials like Nylon, PETG, and others. However, these high temperatures can exacerbate heat creep.
  3. Less Efficient Cooling: In many designs, the cooling mechanisms in all-metal hotends are not as effective in dissipating heat as in their PTFE-lined counterparts. This inefficiency can contribute to the upward travel of heat.

Combating Heat Creep in All-Metal Hotends To mitigate heat creep, consider the following strategies:

  • Improved Cooling: Enhance the cooling system around the heat break and extruder. This can be done by using more powerful fans or better heatsinks.
  • Proper Retraction Settings: Adjusting retraction settings can reduce the risk of softened filament clogging the extruder.
  • Temperature Management: Operate at the lowest possible temperature for the material you are using. This minimizes the risk of heat traveling upwards.

While all-metal hotends offer versatility and high-temperature printing capabilities, understanding and managing heat creep is crucial for optimal performance. By recognizing the reasons behind its susceptibility to heat creep and implementing effective countermeasures, 3D printing enthusiasts and professionals can significantly improve their print quality and reliability.

In 3D printing, achieving a level print bed is crucial for quality prints. However, there’s often confusion between ‘bed leveling’ and ‘mesh bed leveling.’ Although they sound similar, they have distinct roles. This post will clarify these terms and their significance in the 3D printing process.

What is Bed Leveling?

Bed leveling, or manual leveling, involves physically adjusting the print bed to ensure levelness relative to the extruder’s movement. This process includes adjusting bed screws or knobs at each corner of the print bed and using a leveling tool or paper to gauge the distance between the nozzle and the bed. It requires checking and adjusting at various points across the bed to ensure overall levelness.

What is Mesh Bed Leveling?

Mesh bed leveling is an advanced technique that often involves software and additional hardware like sensors. It compensates for bed surface imperfections by creating a ‘mesh’ map. The printer probes various points on the bed to map the bed’s surface and uses this data to dynamically adjust the Z-axis height during printing, compensating for irregularities. This method can achieve greater accuracy, especially for larger print beds.

Comparing the Two:

In terms of ease of use, manual bed leveling is straightforward but can be less precise and time-consuming. Mesh bed leveling requires initial setup but then automates much of the process. Equipment-wise, mesh bed leveling may need additional hardware like a BLTouch sensor.

Regarding suitability, manual leveling may suffice for smaller printers or less detailed prints, while mesh leveling is beneficial for larger beds and precision prints. In terms of maintenance, manual leveling might need more frequent adjustments compared to mesh leveling, which typically holds calibration longer.

Both bed leveling and mesh bed leveling are essential for successful 3D printing, catering to different needs. Manual bed leveling involves physical bed adjustment, while mesh bed leveling uses software to compensate for bed irregularities. Depending on your printer and printing requirements, one may be more suitable than the other.


In the intricate world of 3D printing, understanding the behavior of different filaments when heated is crucial. One key aspect is thermal expansion – the tendency of filament materials to expand upon heating. This post delves into how filament expansion can affect your prints and ways to mitigate these effects for optimal results.

Understanding Filament Expansion:

Why Filaments Expand:

  • Most materials, including those used for 3D printing filaments, expand when heated. This is due to the increased movement of molecules at higher temperatures.

Variation Among Filament Types:

  • Different filament materials exhibit varying degrees of thermal expansion. For example, ABS expands more than PLA, which can lead to different printing challenges.

Problems Caused by Filament Expansion:

Dimensional Inaccuracies:

  • Excessive expansion can lead to parts being larger than intended, causing issues with fit and assembly in multi-part projects.

Warping and Layer Separation:

  • Uneven expansion can cause parts of the print to lift off the bed (warping) or layers to separate, especially in large prints.

Nozzle Clogs:

  • In some cases, expansion can lead to excessive filament build-up around the nozzle, potentially causing clogs.

Strategies to Mitigate Expansion Issues:

Temperature Control:

  • Fine-tuning the printing temperature can minimize expansion. Lower temperatures reduce expansion but must be balanced against proper filament melting.

Heated Bed Usage:

  • A heated bed maintains a consistent temperature at the base of the print, reducing warping caused by uneven cooling and contraction.

Enclosure for Temperature Management:

  • Using an enclosure can help maintain a stable temperature around the print, minimizing rapid temperature changes that contribute to expansion issues.

Filament Selection:

  • Choose filaments with lower thermal expansion coefficients for projects where dimensional accuracy is critical.

Printing Speed Adjustments:

  • Slower printing speeds can allow for more uniform cooling and reduce the effects of expansion.

Layer Height and Wall Thickness:

  • Adjusting layer height and wall thickness can also help manage the effects of expansion.

Calibration and Testing:

  • Regularly calibrating your printer and conducting test prints can help you understand how different filaments behave on your machine.


Filament expansion when heated is a natural phenomenon in 3D printing that can lead to several issues if not properly managed. By understanding the properties of your filament and adjusting your printing process accordingly, you can significantly reduce the impacts of thermal expansion and ensure higher-quality prints.

As the climate shifts to colder temperatures, it’s crucial for 3D printing enthusiasts to understand how this change impacts printing parameters, particularly retraction settings. Retraction, a key factor in preventing stringing and oozing, can behave differently in colder environments. Let’s dive into how you can adjust your retraction settings for optimal printing during the colder months.

Understanding Retraction: Retraction is the process where the printer pulls back the filament during travel moves to prevent unwanted stringing or oozing. The efficiency of retraction can be influenced by ambient temperature.

Effects of Cold Weather:

  1. Filament Temperature Dynamics:
    • Cold weather can cause the filament to cool down more rapidly, affecting its viscosity. This change might require tweaking the retraction speed and distance to compensate for the altered flow properties.
  2. Printer’s Heat Management:
    • In colder conditions, your printer may struggle to maintain consistent temperatures, leading to fluctuations that impact retraction effectiveness.

Adjusting Retraction Settings:

  1. Increase Retraction Distance:
    • If you notice more stringing in cold weather, a slight increase in retraction distance might help. Be cautious not to over-retract, as this can lead to clogs.
  2. Modifying Retraction Speed:
    • A colder environment might require adjusting the retraction speed. A slower retraction speed can allow for a more consistent filament control, reducing the likelihood of issues like oozing.
  3. Temperature Calibration:
    • Consider slightly increasing the nozzle and bed temperatures to counteract the ambient cold. This helps maintain a stable printing environment.

Environmental Control:

  1. Enclosure Use:
    • Using an enclosure can mitigate the impact of cold weather. It helps maintain a consistent temperature around the printer, reducing the need for drastic retraction setting adjustments.
  2. Humidity Considerations:
    • Colder weather often comes with changes in humidity, which can affect filament properties. Keep your filaments dry and stored properly.

Adapting to the colder climate by fine-tuning your 3D printer’s retraction settings can significantly improve your printing results. Pay attention to the temperature and humidity, and don’t hesitate to experiment with retraction settings to find what works best in your specific environment.