Review on 🔩 SainSmart Metal Copper 1KG1 75 Copper Filament Printing: Enhanced Metal Impressions for 3D Printing by Carl Durant

I upgraded the hotend on my CR-10 just to print this filament. It brought me nothing but trouble. First, he clogged my nozzle 15 times. I kept dialing and eventually found a setting that didn't allow me to. I finally understood this thread and created an 8 hour print. It's been 5 hours, I'll check it out. Keep in mind that the hole in this spool of filament is so small it doesn't even fit in the CR-10 spool holder, so I had to use a ball bearing spool holder that holds the sides of the spool instead of the holder. Center. So when I check my print, which has been looking pretty good so far, I see that the extruder is about an inch above the print and isn't producing anything else. It turned out that the filament on the spool was completely twisted and the printer pulled the spool right out of the spool stand, pushed it against my printer and unplugged the X-axis control plug from the printer. Of course the filament got stuck in the cold end of my extruder again and I had to take everything apart again. I wasted half of this thread just trying to get it to work properly, and when I finally did a print that looked like it was about to run out, the thread took that away too. I also had no idea the line was twisted on the spool because the top 5 or so layers were perfect. I didn't spin the spool myself. I took the free end, carefully cut it off and, without letting go, inserted it into the extruder. Eventually I pulled the remaining thread off the spool and intended to rewind it onto a spool with a reasonably sized hole. However, towards the end of the spool, I got so much resistance that the filament snapped at that point, so I'm now printing this without the spool. What an absolute nightmare thread. I've never had problems like this with ANY thread. UPDATE: This thread has just gotten to the point where I want to ask for a refund. I got 5 hours back into my 8 hour print and it seems like I've reached the point where two pieces of filament didn't bond well (see photo). The thread was measured at this point with a caliper gauge to 2.7 mm. It got stuck in my extruder and this is ABSOLUTELY UNACCEPTABLE. My extruder hole cannot accept 2.7mm filament and the product description says "1.75mm filament diameter (dimensional accuracy +/- 0.05mm)". Completely unrealistic.