Anyone ever purchase linear rails from BG?
🕑 Added 2018-06-19 15:33:54 +0000 UTC I did, they were mediocre at best. Now they have replacement sleds which make the same linear rails feel twice as good at least. In the last batch at least ... https://www.banggood.com/Machifit-MGN12H-Linear-Rail-Block-for-MGN12-Linear-Rail-Guide-CNC-Tool-p-1186173.htmlIt might even be acceptable for them to not have grease ports, because they are so cheap. For the linear hardware video I have also bought some of the new black ones for comparison: https://www.banggood.com/Black-450mm500mm550mm-MGN12-Linear-Guide-Linear-Rail-Slide-with-MGN12H-Linear-Block-CNC-Tool-p-1270014.html
And a used Bosch Rexroth from eBay 😍
Comments
Joe Venzon
I got 4 MGN12C blocks and rails from them. The rails were slightly warped at the cut point, and one of the carriage blocks doesn't move as freely as the others. They were so cheap, though....
Daddy Bearcat
Sounds like you got banged good... <.>
Marco Reps
Oh really? Interesting! I've ultrasonic cleaned and re-greased everything multiple times, that helped a bit too
Marco Reps
I might even be giving a few leftovers away in the usual manner ;)
Jon Raymond
I had to buy the replacement sleds as well for the BG rails as the ones they came with were garbage. Traced it down to the wire holding the ballbearings in place being improperly formed.
Marco Vujevic
Looking forward to the video on this. I recently upgraded my Prusa MK2 to a full MK3 and everything leftover that I need to build a little x/y sled for a little laser. Maybe I can draw some inspiration (and motivation) from your build :)