How to Cold Pull - Fix a clogged 3D Printer

TL;DR

Learn how to eliminate extruder clogs on your 3D printer using a technique called a hot pull or cold pull.

Transcript

hi and welcome my name is Anton Monson and today we are going to fix your extruder if you have a 3d printer you're probably familiar with the scenario where your extruder clogs so this is the situation where your extruder is not excluding filament enough or actually you can see when your nozzle that the tables use curling up or that there is no fil... Read More

Key Insights

• 🖨️ Extruder clogs are a common issue in 3D printers and can be identified by observing filament extrusion.
• 😅 The hot pull method is a quick and efficient way to fix extruder clogs, while the cold pull method is more thorough but takes longer.
• 📑 Clear filaments like nylon or ABS are effective in cleaning out clogs.
• ❓ Cleaning the extruder regularly can prevent clogs and ensure smooth printing.

Questions & Answers

Q: How can I identify if my 3D printer has an extruder clog?

During extrusion, check if filament is coming out of the nozzle. If it curls up or there is no filament at all, there could be a partial or full clog.

Q: What materials do I need to fix an extruder clog?

You will need clear filament (such as nylon, IPA, or ABS), a tool for cutting filament, and a heated 3D printer extruder.

Q: How do I perform a hot pull to fix an extruder clog?

After unloading the filament, pre-heat the extruder to around 200°C. Cut a small piece of filament and push it through the extruder until it stops, then push it a bit further. Remove the filament quickly and repeat the process until it comes out clean.

Q: What is the cold pull method and how is it different from the hot pull method?

In the cold pull method, the extruder is heated to a high temperature, filament is pushed through, and then the preheat is turned off. Pressure is applied to the filament while it cools down, and it is pulled out when the temperature reaches around 90 to 80°C. The cold pull method is more time-consuming but may provide a more thorough cleaning.

Key Insights:

• Extruder clogs are a common issue in 3D printers and can be identified by observing filament extrusion.
• The hot pull method is a quick and efficient way to fix extruder clogs, while the cold pull method is more thorough but takes longer.
• Clear filaments like nylon or ABS are effective in cleaning out clogs.
• Cleaning the extruder regularly can prevent clogs and ensure smooth printing.
• The hot pull method is recommended for its simplicity and effectiveness.

Summary & Key Takeaways

• Extruder clogs are a common issue in 3D printers when filament is not properly extruded or no filament comes out at all.

• Two techniques to fix clogs are the hot pull and cold pull methods, both involving pushing filament through the extruder and cleaning out the clog.

• The hot pull method is quicker and more efficient, while the cold pull method takes longer but can be more thorough.