Universal dust filter for filament

thingiverse

This Dust Filter Will Ensure Smooth Printouts. The Hot-End Will Never Be Blocked by Dust Thanks to This Essential Filter. Installation Is Quick and Easy - It Fits Perfectly On All Printers. Upgrades Are a Breeze, with No Filament Cutting Required. Dust Collectors Come in Two Convenient Sizes: 3mm and 1.75mm Diameter. One Look at the Picture and You'll See Just How Much Dust Accumulates Over Time - after One Whole Month! Instructions to Install This Life-Saver: 1. Cut a Piece of an Old Sponge to Size, Then Soak it in Water. 2. Wrap the Filament Around the Saturated Sponge, no cutting Required. 3. Insert the sponge-covered filament into the Filter and It's Good to Go. 4. Simply Push on the Sponge until It's Securely Inside the Filter. Change Out Your Sponge Every Month for Optimal Performance