Either the Vorons are that great so large stock is kept, or nobody buys them. I'm amazed that everyone praises vorons but if they are so good, then why everyone selling Kit versions? Not a single respected seller that sells complete printers, tuned and ready to go, with 2Year EU warranty. With normal die cast aluminum parts, or Nylon66 molded parts. Now thousand of Euros for a Kit ? Are you insane? You can trick somebody into building it who does not have any engineering skills, no dial indicators, no knowledge of material structural stability. You can trick somebody who never built or had any mechanical engineering project.
The frame of these Vorons is flimsy as heck, like russians said, "you must be drunk to desing bending gantry portal".
The praised Bambulab is also full of crap, see their own german forum. They do not print accurate parts that fit one into another. Because its Core XY it can't be compensated either. So for technical stuff what does one use?
Nobody sells assembled Vorons because these printers aren't products manufactured by a commercial company, like Prusa, Bambulabs, Creality or other brands. As they say, you don't purchase a Voron, you build it. No warranty or post sales support from the manufacturer because there's none. Besides, the learning curve for getting the machine ready to print is rather steep. Hence, the restricted number of potential customers because the majority of users wants a machine that works out of the box.
The Voron project was started years ago by a group of engineers and enthusiasts, who wanted high quality printers that could be built from ready available parts (electronic and mechanical). It's a totally open source project, the exact opposite of Bambulabs where you plug the printer into the mains outlet and start printing (in theory..)
Until recently you had to purchase every single part individually, assembling your Voron following the comprehensive manuals and instructions found in their website.
Lately, some vendors started to sell Voron kits. Depending on the parts supplied by the vendor and the quality of the components, the price of these kits varies a lot ( and so does the final result).
I don't agree with you on the Voron frame sturdiness. If anything, the frames and all the mechanical parts of the machine in general are over engineered and tough as a tank. That is, unless you buy the cheapest parts available and perform a really lousy assembly.
Aluminum extrusion profiles connected in this way have no sturdiness, I see no triangles on the sides, no kit includes laser cut stainless steel etc. stability intersections etc.
If you would try to cut these profiles at perfect 90degree angle then stand them up on granite plate, and measure the actual angle that you got you would see that it is impossible to do, you need to take each one and grind them all to same size on industrial grinder. Unless I see some sort of promotion with certificate, accuracy declaration, I say it's not the case and they are cut with hacksaw.
I have a A3 size plotter from USA/china that I can't get up an running because of hacksaw cut profiles, one guy tried to cut a bit on CNC machine, and it has deviation of few millimeters at 50cm length, in other words not even close to 90 degrees.
Voron trident, unlike v2.4 is great as I said in theory, if every part is high pressure aluminum cast and ground, HiWIN mechanics at
1000 Eur I'll take it. You can even make the price same as Bambulab X1C without EMS nonsense that constantly jam and brake in a few months (based on forum claims).
There is no way I would buy a Voron kit from Ali Express. Apart from not knowing what quality some of the AC mains items are the frames AFAIK are not cut accurately enough.
If you want to buid a Voron buy a good quality kit from one of the other suppliers like LDO for example.
That K1 is not built correctly, the belts are not running properly and my guess is the frame is out of square too.