Thanks for the input. I went to the post office today and got the shipping nailed down, it was a lot cheaper than I originally figured $4.76. I will be changing the shipping on ebay today. I'm all about keeping the price low. The prototype I made was a lot simpler and only took a third of the time to machine. It looked a lot better than drilling two holes in a cheap clamp but not "clean" like i wanted. The machine time on a flat topped basic clamp is about 1/4 the time mine takes. 3 axis cnc time at most shops is in in the $100 plus range. So I dont have a lot of wiggle room. I may make a simpler one in the future but was hoping that the look of this one would maki it worthwhile?
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