Thanks Ed- I think I figured out the issues- Firstly, the back jaws on the Tapmatic were not "centered" I had to loosen the 2 tiny set screws and then insert my tap- then tighten each equally. This was a big part of it. Secondly, I decreased the distance of where the stop arm was contacting the brace I made and installed on the press table. This has all but eliminated the "clanking" Tapmatic is working perfectly now. What an awesome tool!The tapping heads are designed for that arm to be "contained" to limit rotational movement but still allow free up/down travel...... here's how mine is setup......
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Tracy it's 1/4 inch bead blasted 416. I got a good deal on some and when I run out I will go back to 3/16 stock. It will end up something like this.
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