Nobody knows the outcome of another path. It is very easy to see the bad bits of the path you took and take for granted the good bits. it is equally easy to think that the other path would not have the problems and not imagine the real problems that would occur.
This is not about Glowforge, but almost every area of life, the house you chose not to buy, or car, or life partner that did not happen. There are folk here who were very happy with their Glowforge but have moved on much more expensive lasers as their need for volume was a happy effect that would not have happened without starting with a Glowforge.
I am on my third machine but all the issues were different and the first one was mostly my fault. If there are many machines and always the same issue then it is not likely the machine or luck.
Yes, it is not likely the machines or engineering but user error. Just like with are that all have the same issues (mine werent) and that’s why they create recalls on vehicles. Buy yes, you’re absolutely correct and I am incorrect. Maybe there is no need for recalls on anything as replicating the same problem over and over is perfectly normal you guys have lost it.
Probably because if they were made of metal, they’d deform the aluminum guide rail over time.
The wheels have been made of different types of plastics by different manufacturers over the years. Which one they use at a given time is perhaps dictated by what the supply chain can make available at sufficient quantities and tolerances.
Regardless, you can readily buy replacement wheels and belt guides on eBay and Etsy, so that should never have you down for long. They’re dollar parts, keep a spare or two around.
Over every owner, you would have a point, but when confined to specific customers over and over while 99.9% of customers do not have that problem, not so much.