whats the deal with these cheap qb288 board's

Stephenj37826 said:
Yes we made our boards in China at one time. The point being is that the company that is selling the knock offs we never manufactured with. Everyone thinks they know who our CM in China is but they don't. Some claim they are our CM that aren't. Also our CM is very professional. They are in NDA with us. I don't believe they sell our design to anyone else. It's other Chinese companies that I will not name those who are knocking off our boards.
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It is not a big deal, it happens every day. part of business in the modern global economy. At the edn of the day, they choose the originator over the knock off based on reputation and customer service, i.e. are you a nice guy, etc. That all matters at the end of the day.

I am sure many companies have duplicated those boards based on demand. The design is NOT that complex and easy to replicate, the price of tech.

Oh well, tis life.
 
A lot of companies like IBM made money getting various computer platforms to "talk" to each other. Sun workstations, Fanuc Controls, etc. Now the solutions are mostly built-in. Stadard 3 d cad file gets converted to the appropriate machine tool code and out comes a part either metal 3d printed or machined from a casting. Either way the part can cost upwards of $150k when finished going on a $16m engine. After years their are standards now. I remember Xerox terminals that had a storage screen that was green phosphor like an Oscope. The process was welding 2 peices of dissimilar metal together. It's called inertia welding. These green screens captured data shots during the weld. It would take several hours to set up the part but 30 seconds to make it happen. The data captured on the screen was stored by charge on the screen and then could be downloaded to tape for storage. Very critical part. The shaft in a jet engine needs to be different materials depending on the section it is in. This process allows welding dissimilar metals. I worked around destructive testing. All of the data collected has allowed computer simulations to be pretty good. I remember tube machine tools. I'm old.
 
dandyrandy said:
A lot of companies like IBM made money getting various computer platforms to "talk" to each other. Sun workstations, Fanuc Controls, etc. Now the solutions are mostly built-in. Stadard 3 d cad file gets converted to the appropriate machine tool code and out comes a part either metal 3d printed or machined from a casting. Either way the part can cost upwards of $150k when finished going on a $16m engine. After years their are standards now. I remember Xerox terminals that had a storage screen that was green phosphor like an Oscope. The process was welding 2 peices of dissimilar metal together. It's called inertia welding. These green screens captured data shots during the weld. It would take several hours to set up the part but 30 seconds to make it happen. The data captured on the screen was stored by charge on the screen and then could be downloaded to tape for storage. Very critical part. The shaft in a jet engine needs to be different materials depending on the section it is in. This process allows welding dissimilar metals. I worked around destructive testing. All of the data collected has allowed computer simulations to be pretty good. I remember tube machine tools. I'm old.
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Worked for Pratt and Whitney for awhile, this brings back fond memories...
 
nc208 said:
Well at least Roget made a better display sticker without the spelling mistakes. I paid 7 bucks a strip direct from Roget and this clown is charging people 20 bucks a strip and its literally in the same packaging roget sends it in.
s-l1600.jpg


vs what I got in August.
View attachment 4102077
Click to expand...
WHered you order them? is Roget a website?
 
conversekidz said:
HLG did a good job marketing a Samsung LED on an aluminum board.

Samsung also sells their LED on an aluminum board...hlg just ripped off their idea
Click to expand...
Then why are the hlg boards about to have Samsungs logo too? Sounds more like a collaboration than a rip off , just saying. Seems like people are upset at their success . My hlg 550 is arriving 3/21 lol
 
I wish these “strips” everyone’s using were more readily available.i can’t find them anywhere besides like mouser or digikey.
Which is why I plan on my next build using Photon Fantom Designs wavy boards or maybe fusion boards.
 
Not to throw more fuel in the fire on this polarizing debate, but I got my boards from the OP's ebay link. They seem to perform great, no visible black dot on the diodes, and it fit my budget. They told me they are developing a heatsink for the boards as well. Just my 0.02
 
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