Information for 3D-Printing with PVA Filament

3D-Printing with PVA Filament

On this page you will find clearly all the settings of your 3D Printer that you need to successfully 3D-print with flexible filament. Still have questions? Visit the contact page. 

  • Temperature PVA filament You print 3D at a temperature between 190 - 210 ° C. 3D-print PVA filament certainly not at a temperature higher than 210 ° C. If the nozzle temperature is too low, the PVA filament may not be fluid enough. That causes under-extrusion. Read more: Prevent under-extrusion
  • Speed ​​PVA filament you will have to 3D-print slowly. If you print too fast, you have the chance that you compress the filament and nod inside the print head. This often causes a blockage. Use a 3D printing speed of around 25 mm / s.
  • Cooling PVA filament suffers from deformation during rapid cooling. Therefore, use a cooling fan speed of <70%. Experience shows that PVA filament 3D printing with a cooling fan at high speed causes ugly deformations (such as warping). Does it still bend warping 3D Prints (warping)? Read more about Prevent warping.
  • Heating 3D Printing with PVA filament requires a heated print bed to prevent warping. You set the temperature of the print bed at a minimum of 60 ° C. The recommended temperature for your print bed is between 60 - 80 ° C. Still struggling with warping 3D Prints? Read more about Prevent warping
  • Adhesion To prevent curvature in a PVA 3D print, good adhesion with the print bed is necessary. This is best done by covering the print bed with kapton tape or even easier to spray the print bed with .kapton spray 
  • Post-processing A PVA 3D-Print dissolves in water. PVA filament is therefore ideal as a supported material. After your 3D print is complete, simply place your 3D print underwater and within a few hours the PVA parts of your 3D print will be resolved. Make sure you have enough water, otherwise the PVA parts will not dissolve properly.

Dissolve PVA

Take a container with water, hot or cold does not matter much since the water has already cooled down after a short time. Make sure your print is completely submerged in the water, your print often floats so you have to impose something on it or be creative. A cube with 20 mm ribs, a double wall and 20% infill takes about 1-2 hours to fall apart and is resolved after about 12 hours. As the dissolution process progresses, the water absorbs the PVA worse. It can help to change the water in between. 

Save PVA Filament

If your PVA filament is stored for a longer period of time (> 3 weeks), it is best to pack your coil filament airtight (preferably vacuum, you can get vacuum bags at the hema and vacuum your vacuum cleaner and vacuum cleaner). PVA is allergic to moisture and will not produce the desired print results after long-term exposure to moisture, which is simply in the air. If it happens that your PVA filament has been exposed to moisture for a long time, you can dry it in a hot air oven. An hour or 6 at 60-70 ° C should be enough.