JiGiU 4 PCs 2020 Aluminum Extrusion, Black 400mm 2020 V-Slot European Standard Anodized Linear Rail Aluminum Profile Extrusion for DIY 3D Printer,CNC and Laser Engraving Machine

I had seen a few less than happy reviews but I thought for the cost I would take a chance and I am definitely happy I did.The tubing was packed exceptionally and beyond what one would expect for the cost, and the tubing was in tip top condition, not a mark on it, even though I would have not cared much if it had a few, not one blemish.I will definitely make another purchase in the future when I am in need.Thank you, highly recommend.

The extrusions arrived in a plain cardboard box with a nice thick foam cap stuck onto each end of the extrusions. They were also tightly bound together with some soft foam wrapping that was held in place with clear plastic wrap on each end. Clearly a fair bit of effort went into the packaging and they even went to the trouble of weaving the foam wrapper between the four extrusions to prevent them from physically touching each other in the box. Which is a shame as these extrusions were pretty banged up before they went into the packaging.The overall surface finish isn’t what I'd describe as fantastic or even good if I'm blunt, there are more than a couple of spots with uneven colouring, dents and scratches throughout the four pieces of extrusion. One of them even has a pretty sizable gouge taken from a corner, so if you’re after cosmetically perfect extrusions, these aren’t going to be the best choice based on what I received. They’re perfectly serviceable with regard to functionality but they definitely aren’t the best example of consistency when it comes to the physical appearance. I’ve tried my best to capture images of the flaws to show you what I mean but they’re hard to photograph due to the lighting at my disposal. They look a bit worse in person than my images are able to represent fully.As for the cuts on each end, they're far better than what I typically see from cheap extrusion suppliers and they’re ready to be used after tapping the ends for screws. Three of the extrusions are pretty much perfect with 90 degree ends when compared to a machinist's square, and the fourth is only very slightly off square. None are bad enough to become problematic and I'd be happy to use any of them as is. The same is true for the length, they’re all within +/- 0.25mm of 400mm based on my tape measure and a calibrated eyeball mk3. The final check I carried out was to set them on a piece of quartz countertop and see if any of them are twisted or bowed and they all sit nice and flat, so other than some minor cosmetic issues these are a fine set of 400mm long 2020 v-slot extrusion.As long as you’re not expecting pristine 2020 extrusions, these are certainly worth picking up. That is also assuming you’re alright with paying a bit of a markup due to the convenience and ability to get this set next day on prime. As they’re a few quid more expensive than my usual supplier of custom length 2020 or 4040 v-slot extrusions in black and silver.

"Long Story Short"Comes in generic boxAll well packaged and securedSolid aluminium with perfect detailed manufacturingVery solid profileIt is well coated alluviumProfessional profiles for any projectsValue for money 10 out of 10