Good value for money but if you are new to 3D printing you will lose them if you buy and install this kit. First let me say that I only bought this because my plastic extruder broke. The metal one is very good BUT it doesn't hold the cables like the standard. You have to print something for this. I wasn't planning on using springs because I've had no issues with stock springs. People keep saying how much better they are because they are stronger and flatter. I don't know why anyone would want a stronger spring that makes the bed easier to scratch. As for the flat, I get it. I put them on, but they're too long, so they won't be flat when I cut them off. Instead I had to raise the Z stop more than half an inch higher and now I've lost typing speed. I've been printing without scratches for about 7 months, good now that I have these new nibs. In general the kit is good but I would skip springs.
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