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Packing List:
MGN12 linear rail*1
MGN12H carriage block*1
If you want to update your 3D printer linear rail with it,
you need to choose the appropriate adapter, we only provide rail, thank you
The spacing of each hole is 25mm, the number of holes for different lengths of rails:
200mm (8 holes), 250mm (10 holes), 300mm (12 holes), 350mm (14 holes)
400mm (16 holes), 450mm (18 holes), 500mm (20 holes), 550mm (22 holes)
Difference between MGN12H block and MGN12C block:
MGN12H: Long Carriage Block, size 45.4mmx27x10mm
MGN12C: Short Carriage Block, size 34.7mmx27x10mm
Please select the correct size and type you need.
Installation and usage advice:
1. Please lubricate the rail and slider again before installation.
2. When installing the rail, do not remove the block unless necessary.
3. When installing the rail, do not switch the block of the rail arbitrarily, so as not to affect the accuracy.
4. Lubricate regularly to reduce friction of rolling parts, prevent burns and reduce wear, and prolong service life.
AJD
Reviewed in Canada on August 8, 2024
Disappointed with the quality and consistency of these linear rails and carriages. One rail and carriage was nice and glided smoothly. The other two carriages were rough, with one halting very significantly throughout its travel. The second rail was also rough, with signs of use, and a ding/pit that I had to smooth out with fine sandpaper. I disassembled and cleaned the carriages, and found that the number of ball bearings in the races was inconsistent between them as well. I may consider buying new ceramic bearings at some point and try upgrading these, but for now they'll have to do as they are.
PubliusH27
Reviewed in the United States on March 12, 2024
I used these to convert my Ender 3 V3 KE from the standard set up to a linear rail for the Y access motion. The rail came neatly packaged and had no defects, rust, and happily both were straight with no warps.I lubed up the bearings and installed with no issue.
Michael Ashcraft
Reviewed in the United States on February 5, 2024
The first order has the wrong size and count but that's Amazon's fault. The replacement rails are smooth and very stiff. Would buy again.
Navi
Reviewed in the United States on April 30, 2024
Received dud and reached out to the seller and they contacted me after almost 1.5 weeks. I ended returning it.
Kyle Quinn
Reviewed in Canada on March 23, 2023
Bought these to convert my Ender 5 Plus 3D printer to linear rails and so far, so good. No issues, nice and straight, rigid, rolls nice and smooth.
Customer
Reviewed in Canada on January 27, 2023
Nice and smooth.
Jason Siegmund
Reviewed in the United States on December 12, 2022
The rails work well on my ender 6 conversion. They make the printer a little faster to print with and just add a sleekness.
k-in-va
Reviewed in the United States on November 7, 2022
I have mixed feelings about these rails. on one hand they are nice and tight, they really is no slop or play in them at all. the problem is they don't slide smoothly, there are spots where they seem to bind and stick a bit. you have to take them apart, soak them in rubbing alcohol, clean all the ball bearings and the tracks they ride in, apply a little grease and put them back together (without losing any ball bearings). if your willing to do that then I guess I would recommend them. If you don't want to do the cleaning then get the Hiwin rails.
jaymemaurice
Reviewed in Canada on November 4, 2022
Works well for 3D printer. Would buy again. Did require removal of existing grease and re-greasing.
Kevin PickleFace
Reviewed in the United States on November 20, 2022
So far, of all the brands I've tried, these are the only ones that have consistently moved on their own after cleaning and lubrication.
Bernie & Amber
Reviewed in Canada on April 4, 2022
Even out of the box before cleaning them and lubing, they move so smooth and have no fine bumps or anything, they also did not come with any factory packing junk all over them and are properly packaged. I have to say they are really worth the money. I have bought loads of other brands and now will stick with this brand no questions asked. I also only bought the 250mm because I need some carriages and for the price it was worth getting the whole thing and wow.PLEASE keep building them like this and keep that kind of quality control.
Alexander Starr
Reviewed in the United States on June 12, 2021
The bearing balls in the sliders needed a little cleaning and lube but the quality was there for what I paid. The rails are machines nice and it was packaged in a way that keeps everything stationary so you don’t have it come apart in transit and lose bearing balls. The balls were intact people!! Lmao. I got these to add linear rails to my CR-10 V3 and will be buying more the do the X and Z axis later on.
Ed
Reviewed in the United States on November 4, 2021
These are much better than I expected and move very smoothly with very low force. The rubber stoppers at the ends are a nice feature that keeps the carriage from falling off while assembling things.
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