This wasn’t a difficult problem to tackle for IRobertI as he quickly designed a dust filter to clean his filament before it enters the Bowden tube. Ingeniously it ensures that dust can’t enter your Bowden tube and end up in your nozzle causing problems. All you need to do is give the Z-stage a wipe before you start and you’re ready to go!
Additionally, if you do work in a dusty environment adding a drop of sewing machine oil on your axles to keep them nice and smooth will definitely help. It is considered regular maintenance and not so much a tip, but we figured we would add it here anyway in case you didn’t know yet. More information about general knowledge or maintenance can be found in our knowledgebase.
Print this dust filter at 80 micron (0,08mm) and increase its size by 15% (Scale; 1.15).
Printing in a lower resolution can make it tricky to get the hinge working.
Add 2 pieces of sponge or scrunched up pieces of fabric to collect the dust and keep it away from your precious nozzle.
After assembly, you just have to clip the dust filter onto the filament, after it comes off the spool but before it goes into the feeder. Gravity and the low friction inside the filter will keep it from interfering with the action of the feeder. If you want to see more modifications, discuss a modification you’ve made, or you’re looking for a solution to an issue you’ve been dealing with – there’s a dedicated thread on our forums about Modifications and Upgrades. And you can, of course, ask any other questions you have in regards to the filter on the forum too!