I will start testing my first block today. Check my website for the pics. I am not going to show the inside design untill I know the results and have the final version done, but it is a maze style design with a 1/2" wide channel. If this one works out it will be around $20-$25 for the Aliminum and $30ish for the Copper. After this one is done I will start to work on the cheaper versions.
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