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Building even basic things is difficult. Friend of mine tried like dozen companies from around the world to manufacture very basic milled aluminium part. None o
by varispeed 1y ago
Building even basic things is difficult. Friend of mine tried like dozen companies from around the world to manufacture very basic milled aluminium part. None of them could make it. Only one company could make 1 or 2 right out of 100.
- helij 1y agoSorry, but I find that hard to believe. Part certainly wasn't very basic.
- varispeed 1y agoSlab of aluminium milled to a flat triangular-ish shape about 10mm thick, then inside hollowed out to half depth and 8 counter-sunk holes non-tapped. Common issues: - item is not flat - nicks and dents on the edges - non uniform depth of the counter-sunk holes - holes in incorrect locations - unapproved changes to design - scratches - pores (poor material quality) - incomplete milling Then parts have to be hard anodised and sand blasted. - Sand blasting uneven - Sharp edges remaining - Streaks - Contamination - Exposed bare metal (it is only acceptable in the holes that could be used for hanging) Companies also have virtually non existent QA. You can list them things that will cause rejection and they send it anyway. One company told him after sending a batch that was complete carnage "We can give you $100 coupon for next order!" he insisted on rework. So they sent again, even worse.