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

The ends are anodized, seems to be good quality and a good value.

These are sturdy extrusions. I have used them in a few projects. they are strong. the black finish is a nice touch. They are also cut to the right size from the start. 5/5

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.

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 aluminum extrusions were what I needed to extend a small laser cutter. Standard tslots fit with them and the black coating has held up well.

I got these to build a new larger format 3d printer. Ive been using 2020 (vslot) rails for years to build printers. These ones in particular are very good looking because the ends are also anodized, so Im assuming they dont anodize these until after theyre cut, which Ive never seen and appreciate the effort. My only gripe is theres not internal threads in these. Not a big deal for my application, but it may be for somebody else. Otherwise, perfectly straight and nice and sturdy even at 600mm.

Supposed to be 600mm and these measure 599mm. Also, the packaging is insufficient - you can see one arrived with damage on the end.

I grab these extrusions whenever I see a good deal. I use them for projects, repairs, anywhere I need infinite adjustability and versatility. The black anodizing is attractive and tough. Love these.

These are exactly as described and well made. This for me is gonna be part of a cnc routers gantry system.