![Quote](images/misc/quote_icon.png)
Originally Posted by
knudsen
Both look great to me. The latter looks a bit easier, maybe cheaper??? I was going to triangulate with 1 1/2 x 1 1/2 square tubing, since I have it. I might go for channel, I could use some for my lathe and justify a 6 ft length.
Alex, the cup washer is there so there is something between "loose" and "tight" for easier adjustments. It is not a locking device like a toothed or split washer. In practice, I doubt it much matters, but wave or cup washers are nice on smaller applications, like a QCTP height adjustment.