So I have entered the world of printing with PA 6.6 nylon filament…
I have made progress but still not able to crack it to get a full print out of my sv06 ACE, what I have setup I will list below. My main issue is still detachment due to shrinkage from the build plate when the print gets to 27mm high.
Filament in a Creality dryer 24hrs+ and counting at 70 degC - Printer in an enclosure / Nozzle temp =260 degC / Bed temp = 100 degC - Brim 25mm Nozzle hardened - Nozzle Speeds as per generic PA in Orca slicer - infill 100% - Print object L 60mm W 40mm H 30mm
I am happy to add any info to help, but I thought the above is a good start and anything to fix it we will all know for the future.
I am running the nozzle at 260 and it is a .04. I also have the cooling fan set to off during the whole print. I have read that using the Bed between 80* - 100* and a very large brim (I used 25mm) along with the other settings it will work okay…
Yes, the base warped and caused the object to lack adhesion to the bed.
The table from Overture states: -
Nozzle - 245* - 260* / Bed 50* with PVP / Print speed 30 - 70 mm/s / Cooling fan off
I am wondering if using a lower bed temp of 50* would make a difference?
I have finally managed to successfully print out a PA 6.6 nylon project. I was using my Sovol sv06 ACE in an enclosure with the filament feed from a Creality filament dryer/heater.
NOTE: The filament I used was OVERTURE Nylon Filament 1.75mm Polyamide (PA 6.6) which I dried/heated for 48 hours and then 4 hours minimum before using it.
What worked for me is listed below: -
Build plate prep -
Use PVP glue stick & Isopropyl Alcohol to create a sticky patch big enough for the project and brim. Technique I used was put a reasonably thick layer of glue from the glue stick onto the build plate, spray Isopropyl Alcohol over glue patch. Using a brush create a uniform layer of the mixture on the build plate.
Printer settings –
Preheat the build plate at 100* for ½ hour before printing, this also helped heat the enclosure.
Print bed temp 100* for first layer – 50* for the rest of the print.
Nozzle 280*
Cooling fan off
Print speed 30mm/s
Nylon 6.6 (PA 6.6) is a versatile, semi-crystalline engineering thermoplastic known for its exceptional mechanical strength, wear resistance, and high thermal stability. It is frequently used as a lightweight, high-performance alternative to metals in demanding industrial and automotive applications.
Key characteristics of Nylon 6.6 include:
Mechanical & Physical Properties
• High Strength & Stiffness: Exhibits excellent tensile strength, rigidity, and hardness.
• Wear & Abrasion Resistance: Delivers low friction and outstanding resistance to wear, making it ideal for moving parts.
• Thermal Stability: Boasts a high melting point (around 260°C) and performs well at elevated temperatures compared to other nylons.
• Lightweight: Provides a high strength-to-weight ratio.
Chemical & Environmental Performance
• Chemical Resistance: Highly resistant to hydrocarbons, oils, greases, and many organic solvents.
• Moisture Absorption: Like all polyamides, PA 6.6 absorbs moisture. This can affect dimensional stability and electrical properties, but it actually increases the material’s toughness and impact resistance.
• UV & Acid Sensitivity: Unmodified PA 6.6 degrades under prolonged UV exposure and can be attacked by strong acids.
Typical Applications
• Automotive: Engine components, gears, bushings, and radiator parts.
• Industrial: Wear pads, bearings, rollers, and heavy-duty gears.
• Textiles: High-durability fibers for carpets, ropes, and parachutes.
• Electrical: Cable ties, connectors, and insulating components due to excellent dielectric properties.
For highly specific use cases, PA 6.6 is often modified with fillers like glass fibers (for increased stiffness) or Molybdenum Disulphide (for enhanced surface hardness and wear).
