Holmz said:Cheese said:bruegf said:Finally discovered that infeed table had warped quite badly since the previous use. It's now junk.
I'm curious what brand of jointer this happened to.
That's really quite unusual because iron castings such as jointer beds or lathe beds are usually aged for 6-12 months to eliminate the residual stresses in the casting. It's best to leave them outdoors so thay can "grow & shrink" on their own with the temperature changes.
It's the same reason that guys look for good used car engines (100,000+ miles) to build up for drag/motor sports racing.
I am with Cheese on this.
Milling machines usualy have the ways scraped to make them orthogonal, but rarely move after the residual stresses are out.
I cannot imagine the infeed and outfeed warping outright, but I could imagine something ahppening where they attach. It does seem odd.
It's definitely the table itself that warped, there's a pronounced dip in the surface a few inches from the cutter end of the infeed table.