Just thought I would quickly share what can happen if you're not paying attention with a heavy mass spool if you're not careful. I have all my spools on a dowel rod attached to the top of my printer enclosure and fed through an opening in the top. Never had the slightest issue with 1 kg spools, and I thought I would save a little bit of money and time changing filament by trying a 3 kg spool. It spins perfectly fine without friction, but the much heavier mass is enough to cause it to have significant strain on the extruder pulling it in to the hot end. You can see in the result where I provided strain relief by hand while watching it print. 
this post was submitted on 28 Feb 2024
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You mentioned already having smaller spools, can just transfer some of it there. Best of both worlds, if a little tedious
One day filament will come with DRM so you can't print it backwards. Only a pirate would do that!
That's probably what I'll end up doing