10 Pack Black 2020 T Slot Aluminum Extrusion for 3D Printer and CNC - 10X 1M

The extrusions are well made, they arrived in good condition with no warping. Each piece was individually wrapped so the anodized coating was perfect.Some things to note:As others have said, these extrusions do not have the bevel show in the diagram, making them incompatible with v-wheel rollers used for 3-D printers/CNC's etc. If you want to use these for that purpose, then you will have to buy linear bearings or linear rails, and secure those to the extrusions with T-slot nuts.Also, the extrusions are significantly cheaper to buy directly from their website, even with shipping. I live in the SE United States and it only took a few business days to arrive.

I was shocked when I first came across this 2020 aluminum extrusion. Do your research- a lot of metal suppliers charge an arm and a leg for it. I didn't need the full 10 meters (32.8 feet) this bundle came with, but fortunately a friend of mine split the cost and aluminum extrusions, so we each paid $43 each for 5m (16.4ft). I'm looking forward to building my own lid/enclosures for my Creality Ender 5 and SainSmart Coreception 300 3D printers.

The plastic was a pain to get off but it protects the channel so you have a nice finish without scratches. These things are 39.37 inches long (1 meter)I liked it so much I asked the vendor specifically if they sell 20/40. Excellent value for the money.

The extrusions were straight and square. The lengths were all good. The black was a nice deep black, not faded like some others I've seen.The packaging left a little to be desired. The ends of the extrusions weren't covered in anything aside from some stretchwrap. Which I believe is a least part of what tore the box up to the point where I'm surprised it held together.Overall a great product at a decent price.I should mention that you can get these quite a bit cheaper directly from the sellers website. They're located in Houston, Texas so no worries about international shipping.

The aluminum was well wrapped and packaged, which is likely why they arrived in optimal condition. I really appreciate good packaging for shipment, less likely to be damaged. Kinda expensive, but all extrusion is expensive.

Arrived well packaged with protective tape on all sides of each individual piece. Bundled together in the pack of ten they were all perfectly straight. Additionally I went to ZYLtechs website to order some other items and the customer service was perfect!

These were extremely well packaged. All of the dimensions were exactly as stated on the technical drawing. The center hole is exactly 5mm diameter as shown as well. if you need to utilize this for tapping and assembly, you must go to a higher size than M5.If I had to complain about anything, it would be that the protective covering on all of the extrusions left some adhesive in a few spots. This was easily wiped anway.They are stiff and straight as you should expect with such a well packaged product.

Decent product. But the packaging... the only way it could be more annoying is if the super adhesive used to glue the protective plastic covering to each side of each extrusion, which only comes off in pieces and leaves adhesive film behind on everything, we instead used to attach Hello Kitty stickers all over the entire thing. I get you want to protect it, but the adhesive was just so awful I almost packaged the whole thing back up and sent it back. It literally took me 20 minutes per piece to get all of that off.Please consider dropping the adhesive in favor of just regular plastic wrap.Edit: Just a note for anyone buying, if you live in a cold climate, let these warm up after delivery. The plastic IS easier to remove if its not cold. Still leaves a residue though.