OUYZGIA 2040 Aluminum Extrusion 350mm 14 inch V Slot 2040 Extrusion for Building 3D Printers CNC Machine (V Slot 2040, 14 inch, 350mm, 2pcs)

I needed a few more 2020 300mm v slot extrusions to complete my 3D printer, specifically for the bed mount. This 4 pack was just what I needed, and I chose this set specifically because the ends are also anodized, and not bare aluminum like most other v slots I saw on amazon. They arrived well packaged in bubble wrap and inside a box, all individually wrapped in paper. On inspection, all four are perfectly straight, exactly 300mm with calipers, and all the exact same length. The mounted perfect for my bed, with no warps in them. Overall very pleased with these v slot extrusions on amazon

I have ben getting a lot of these extrusions that come shipped with aluminum bits all over them. These came wrapped well and clean. The finish is excellent and they are straight!

For those not on the metric system, these are 23.5 inches long. They measure exactly 20mm in height and width. These have a smooth anodized finish over the entire surface, including the ends. They are straighter than I have the ability to measure. Should work for lot of purposes, including the CNC setup

These are perfect! They are just what I expected. They came neatly wrapped and have a very clean finish. Even the ends have a matching finish. There are no shiny cut ends.⭐️⭐️⭐️⭐️⭐️

Its 2020 v-slot aluminum. The nuts I used with it fit fine, I didnt compare pricing with any other sources, but it worked perfectly for my needs.

They work great, look great and both ends on each piece were either painted to match or anodized. Both pieces were flawless and I will purchase this brand again.

These are excellent Aluminum rails. I use them primarily for upgrading my 3D printers and these do the trick. Very accurate, the length and widths are spot on and every thing links together well. The black coating on the outside feels and looks nice too. It’s great there is a good variety of sizes too so you don’t have to worry about cutting to length.

I got these to convert one of my older 3D printers into a printer with a larger build area. They are straight, and the measurements are dead on within an acceptable amount. I took my hotend off the cross rail from the printer I am modifying and it slid right onto the rails and back and forth motion was very smooth. All the sides and ends are finished. There are no burrs, scratches, or any imperfections that I could see. Another reviewer thought they were a bit pricey, but 4 packs go for about 30-36 dollars so while on the higher end of the spectrum still within the normal price range.

The width lets me add stability to my vertical test bed, for motherboards.

Ive been buying extrusions from OUYZGIA for 9mo, and this 2040 is precisely why I keep buying from them. Its clean, no little cutting remnants all over it like I get with most every other brand. Its well packaged, straight, and reasonably priced.