GRID Infill and Nozzle Wear
Anyone ever hear the nozzle thumping across large prints when using GRID infill?
I've heard it since day one since Grid is the default infill, and always wondered if it was damaging anything. Well, these past few days have proven it is very hard on the print nozzle. I destroyed an E3D Nickle Plated Copper nozzle printing 200 grams of PLA in a 6 x 8 x 1 inch part. Wore the nozzle down as if I had taken a belt sander to it.
Changing to rectilinear solves the knocking ... and is what I usually use; but I wanted a bit more rigidity to print these large flat parts. A mistake since even using grid didn't help the warp and adhesion problems but did ruin my new nozzle.
So my question to experienced printer hounds is this: Am I doing anything wrong to cause this hammering when printing GRID infill?
Re: GRID Infill and Nozzle Wear
Grid is worse if you're using high speeds (e.g. the high speed Prusa defaults for infill). If I hear the grinding, I dial back speeds on the front panel and adjust my slicer settings accordingly. It can happen with other materials if the nozzle moves too fast for the material to lay down and melt properly.
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He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
Re: GRID Infill and Nozzle Wear
Here's what happens to a nozzle ... and that's after less than 500 grams of glow in the dark.
Part had pulled loose on the corner, adding to the wear... I aborted soon after this pic was taken. Even so, the amount of wear was surprising and required changing Z 1st layer about -0.100 after this first 150 grams. After two failed attempts and a completed run, total filament through the new nozzle was just under 500 grams.
