Motion Perfect Linear Rail (Guideway) and Carriage (Car) MGN12H

These rails are hands down the best I’ve ever used and I will be definitely converting all my Voron V2’s over to them (a bit at a time as they are a little $$$) Starting with the X & Y Axis. Yes they are on the pricy side but they have improved my print quality (even if it’s a minor improvement) and I never have to service them & to me that makes them worth the extra price.

This rail is pretty incredible with a price that reflects the performance. It's a high quality no-maintenance rail, that's worth a lot to me.

I currently have Hiwin rails and carriages on X and Y on my Voron 2.4 and thought they were the linear rail endgame. I am always chasing the dragon and decided to give these Motion Perfect rails and carriages a try, and I am blown away. They are buttery smooth out of the box and have the perfect amount of preload. There is 0 play in the carriage. So far I have only purchased and installed the rail on X, but I am very impressed. I will update once I run an input shaper pass to see if this rock solid rail improves my shaper tune.
Also, a huge plus is these rails are maintenance free! No cleaning ball bearings and repacking with grease! Again I'm very impressed with these, but they are expensive... But if you have the income and want the best for your printer, I dont think you will be disappointed!