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  • 05/11/2020

    I bought one 400mm for test. It came just in a plastic bag, no bubbles, no foam, no cardboard. Just a plastic bag that was sticking out of the bigger bag (see photos). Also, I bought it from the UK warehouse to EU, it was advertised that it would take 3-5 days to deliver, but surprise, it took nearly a month (!!!). Now to the rail itself. The bag it came in was sealed, but the rail was full of dust. Because of the poor packaging, I think the rail is slightly bent. Unfortunately I have no tools to measure it, but if you put it on a flat glass surface, you will see that it forms an arc, and some light is passing under it. When I first tried to slide it, it got stuck several times and it felt like it was scratching along. I disassembled it and washed everything in IPA, put it back together and used some silicon oil to lubricate it and now it is a lot smoother and nearly doesn't get stuck when you let the block fall freely vertically. It still feels a bit scratchy though. I don't know about the quality of the metal itself, for reference, you can scratch the rail easily with a wiha picokit screwdriver or a bosch hss drill bit. Overall I think it is ok for the price. I'm going to buy a few more of these. Good luck!

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  • 05/11/2020

    Hi, the banggood packaging is insanely good and the parcel arrived without any damage. 400mm Rails are straigth, clean and strong for this tiny size. On the other hand the ball-blocks look a bit fragile, if you are not careful, some balls can escape their track, but they slide smoothly on the rail, i will clean them properly, i have seen people on youtube explaining the cleaning process and getting great results even when the carriage is completly stuck. For some reason, It seems the package contents violates some european union import regulation article 28/29, i dont know if this is a big problem for future orders, the package arrived in time anyways. I will definitely purchase more of these rails for future projects.

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  • 29/09/2020

    Good quality for the price. One warning though, Machfit slides usually come with ball bearings missing to make it slide easier. (see photo) This is not a problem for light duty applications, but is less than ideal for larger loads. The one I got from another vendor did not have this issue. Also, the bar part is slightly curved. It is intended to be fastened down to a straight surface.

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  • 30/10/2020

    MGN12-450 Rails was only packed in a plastic bag. So not good. Was just thrown through the letterbox resulting in minor damage to ends that I have to grind away again: - (( Furthermore, the rails looked good, test will have to show whether they are really good. The car feels like it contains square bullets. I will first clean them and grease them again. I hope it gets better then

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  • 13/02/2021

    Not bad quality but bearing could be better. The one on rails were ok but separate 2 of 4 won't slide frealy. I did clean and lube them.

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  • 19/01/2021

    Arrived in good time and in good condition. Happy all round.

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  • 26/04/2021

    really well packed, fast delivery from China to Portugal.

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  • 02/04/2021

    The only thing missing from the product super-German competitors is the kinetic friction that's palpable, but it flows on the go. I ordered a product that deserves the price 650mm 600mm 200mm all reached my smooth hand. They packed it nicely so it would n't bend over.

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  • 18/01/2021

    Rails looks ok but they need some cleaning.

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  • 10/12/2020

    perfect for upgrading my Sidewinder X1 3D printer.

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