Review on MGN12H Sliding Carriage Printer Machine Power Transmission Products by Dipp Samrock

A quick inspection revealed that straight out of the box the guides were missing some bearings and no replacement bearings were included. An easy problem to fix, but still annoying for a brand new part. First rubbed with alcohol and re-greased, added the missing bearings, but it was still stuck. So I checked the bottom brackets and both metal clamps holding the bearings were loose due to poorly designed bottom brackets. No wonder the bearings keep falling out. At the moment it already took me an hour, it's not worth investing more money, everything comes back. All my cheap rails from aliexpress are better than this junk.