Duane Dickey wrote this review on the other forum at bottom on a thread I wrote.
Richard King 2 said:
Member Duane Dickey is attending this past weeks class and he is getting educated on how important it is to set columns, tables, saddles on 3 points when scraping and measuring for co-planer or parallelism. Cast iron bends and sags. If you just set a part on a table it will flex to it's own weight. Maybe not a lot, but if you scrape it as it sits, when you go to assemble or match fit it to the mating part it will be off. I am teaching today, so I can only post a few pictures now I posted more on my company forum (in the other forum, I have a King-Way forum) at the top of the lists. Yesterday I showed him what's called the balance beam or bridge support. Also on the photos' we put the single point under the feed screw hole on the saddle as when the factory built the machine that is the center of gravity of the part. We originally set it at 1/2 of the appearance and it was not as accurate. The machine we tested was a Harig surface grinder that the scraping looked new. The first pictures show the column of a Bridgeport grinder.
Duane wrote:
I knew about three points but I had never really checked or thought about checking. To actually see the readings change with the Kingway was quite educational and eye opening.
Thanks Rich for putting the class on, learned a lot.