Good for drilling hard plastics also. Plexi/AcrylicNever heard it called dubbing, thanks for that.
Lactose intolerant?I don't think I'd want to use milk to drill copper in my garage. I can see it going all over and unlike oil or cutting fluids, it will go rancid if you don't clean every drop.
It may work, but I can't see myself using it......
Of course I'll share itAh, very good. I actually thought it would be a good peltier exchanger while I was reading your post, because I've been sitting on a couple of them with power supplies for a long time, just haven't found the cojones to cool a PC below ambient. That and the technology keeps changing, making that sort of cooling obsolete in the last couple of years with active TDP schemes.
Are you willing to share any more about your application? It sounds interesting.