hi again.
I usually dont spend time in forums and trying not to be too much of a troll.
I have vast technical experience with 3D printers since my first printer I assembled in 2011 (the kit came with an actual, physical medal. because if you got it to work, you deserved it!)
I am trying not to expose myself too much but I recommend UM printers to schools and institutions because I think it is the most reliable printer under $5K for institutional use. labs I work with have logged over 55K hours of printing combined, on UM2/2+ alone
prints detach from buildplates, at least partially every ~15 prints on average I would say. even if you always turn on brim (which rules out some types of models i.e with hinges or chain-like) the only way to make 100% sure your print stays stuck to the build plate is to check it every half hour or so.
I tell printer operators, 90% of failures are in the first layer. even so, prints can detach even if you put glue, and made super-sure that the first layer is fine. especially with non-PLA materials. And you know well that they can detach in the 3rd, 4th and 50th layer. It happens. till now, no biggie. just come in the morning to pile of premium ColorFabb spaghetti.
My point about misleading post is that I do not consider "making sure your print sticks to build plate" as a solution to this problem, when you are dealing with a school or company that has over 3 printers and just expect them to work well, or at least fail gracefully when they do. Remember, these people don't have the time to monitor the printer every 30 minutes.
If the school lab manager swears to me they checked the first layer was stuck well to the build plate, and they come in the morning to a print head un-repairable heap of bent metal and goo, imagine their un-pleasant surprise when they discover the malfunction is considered their fault and may not be repaired for free even under warranty.
I think it is good and fair that you are admitting that you moderated the post including the "salespartner only" document even though I only pasted 2 short paragraphs from it. but I know some of your customers (incl. my partners) are not getting the service and repairs they deserve under the terms outlined in the document. will you take responsibility??