Hi smith99
I have a Chinese 3040 that I have had for about three months,I use it for about 7 hours a week and have only ever used it on hard woods like Oak and phenolic board and it seems to be ok,The spindle on mine only goes up to 8000rpm which if I was buying again I would go for a better spindle,For what I use it for it's ok and I don't push it to hard and I never used it on brass or aluminium.I have posted a few videos off it under the title Chinese 3040 Arrives in the workshop & equipment section.