Automatic Nozzle Brush for V3

[timskloss]

My daughter does not like to pick off the ooze from the nozzle just before our new Rostock Max V3 begins to print. So I saw an opportunity and sketched up a part to hold a small wire brush to automatically clean the nozzle when starting a print.
I put the thing here: http://www.thingiverse.com/thing:1904416

The g-code to add to your slicer is listed in the description of the thing. The only drawback is that you need to remove the brush after starting a large diameter print. For most smaller prints it can just stay in place.

For such a simple thing, it works quite well and has really cut down on stray filaments interfering with the first layer.

[mhackney]

The link is broken.

[timskloss]

Thanks for the tip. It is my first time to publish a thing and I forgot to hit the 'publish' button. It should work now.

[Jimustanguitar]

Be careful with your GCode to wipe the nozzle! I've read more than one horror story of someone getting a little over eager on "brush depth" and shorting out their heater or LCD

[timskloss]

Be careful with your GCode to wipe the nozzle! I've read more than one horror story of someone getting a little over eager on "brush depth" and shorting out their heater or LCD

Oh yes, I see you could short out the heater leads with the metal brush bristles if you lowered the nozzle too much!

[geneb]

Maybe make yourself a little brush out of a block of PTFE.

g.

[Xenocrates]

Maybe make yourself a little brush out of a block of PTFE.

g.

I was thinking more a refractory ceramic fiber would be a good idea (I should try this on one of the Taz's. That way it's not my printer if it breaks something). Although it would mean that anything but a steel hotend might be abraded faster, and the fibers might detach or do unfun things over time.

[DeltaCon]

Nice idea. Will have to adapt to V2 bed when I get my printer working again...