Review on 🖨️ Efficient Screw Thread Diameter Printer by ReliaBot: Enhancing Precision and Performance by Boss Spangler

These improved the TR8x8 lead screws on an i3 printer. Both lead screws I received are straight and well made. The nut also has very little play, definitely less than my old bolts, although it's not a big deal for the 3D printer's Z-axis. Keep in mind that you may need to adjust more than just the number of steps per unit when upgrading from a TR8x8. . Your motor will now travel 4 times further for the same Z-axis travel, so your previous acceleration and jerk values may be too high and may result in lost steps and Z-tracks. I believe 100 acceleration and 0.3 jerk works fine with my Trinamic driver at 800mA. Also, using Marlin 2.0's connection reject feature with default settings resulted in horrible z-stripes for me, so you'll probably need to tweak that or go back to the classic dash like I did.