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@JS-187
My experience with laser cutting to it that it is very difficult to align the item within the bed to accurately position the cut. When cutting perspex / card / wood there is a certain amount of wastage around any sheet used. I have etched glass using a laser cutter but it requires you to use an image file rather than a vector (CAD drawing) and makes a series of passes over the image like an inkjet printer. Would be a shame to get it slightly wrong.
I would think an acid etch process would be easier where you mask protect all the aluminium other than the logo. This will make it easier to position a logo on something like cranks.