I don't get the square bearing. What am I missing?
Dr. Zook, your right. That's what it also said in the ad, more bearing surface to use as a guide.Dr.Zook said:Kevin, my guess is that it gives you more bearing surface to use as a guide. Also would seem to eliminate dimples in the cut, where a round bearing would follow the exact surface it was on. My guess.
I'm glad you answered that, I was afraid I would have too. I have seen these bit around for the last couple of years. I don't do much of that work so I never purchased one but liked the idea. I would like to here from someone who has one of these and find out how well they like it.pmspirito said:Here's the deal. the square part does not rotate. it slides along the work and therefore cannot burn the surface finish as a spinning bearing can. the bearing is spinning inside of the square part. glue/contact cement can build up on the metal bearing surface as it rubs along the material being trimmed. there is some heat in the spinning bearing that actually melts the glue just a little bit and it builds up on the metal bearing surfaces. the square teflon part is stick-free and the contact between the square part and the material never gets hot.