30-10-2017, 10:16 AM
Dave,
Probably the best way to make these and the engraved instrument faces with paint infill used on early cars would be to use a photo etch method that is the same as used for diy PCB manufacture. The materials are very inexpensive. Same method would suit all the chassis plates/ couch builders plates etc.
Just been looking on ebay. The materials are less than £10 for a small quanity. For aluiminium use NaOH to etch. Its cleaner and cheaper than ferric chloride. There is a book on how to do it... workshop practice series no36.
Looks tempting to give it a go.
At work I get profiled shims and gaskets made this way in large quantities. Ah yes I suspect that might suit you! You can make solid copper head gaskets like this and use the photo etch to leave a raised land round everything you want to seal. Because there are no cutting tools it all stays flat and scratch free.
Regards
Rob
Probably the best way to make these and the engraved instrument faces with paint infill used on early cars would be to use a photo etch method that is the same as used for diy PCB manufacture. The materials are very inexpensive. Same method would suit all the chassis plates/ couch builders plates etc.
Just been looking on ebay. The materials are less than £10 for a small quanity. For aluiminium use NaOH to etch. Its cleaner and cheaper than ferric chloride. There is a book on how to do it... workshop practice series no36.
Looks tempting to give it a go.
At work I get profiled shims and gaskets made this way in large quantities. Ah yes I suspect that might suit you! You can make solid copper head gaskets like this and use the photo etch to leave a raised land round everything you want to seal. Because there are no cutting tools it all stays flat and scratch free.
Regards
Rob