This appears to be the source of most of the extra traffic I've been getting the last few days. In the video, he mentions my coping calculator, and shows an example of its use. I noticed the the joint looked a little loose. One thing that I probably didn't point out clearly enough is that you can get a tighter fit by decreasing the tube thickness to about 50% of the actual tube you're using. That will require a little more grinding to get it snug, but it might be useful for tight tolerance work like this.
Site traffic and ad revenue seems to be way up over the last two days. The site has gone from an average of 1383 page requests to 20,818 for yesterday. Aside from a recent link from Reddit, I have no idea what's going on.