What you need is a lapping stone or "truing" stone. They are very coarse and have grooves in them that both help in the lapping, and also run the cut particles off the surface. Lesson to be learned from all this is, don't let your stones dish and lap frequently
I used to just go sit on the cement patio on a sunny day and run the whetstone over the patio. It's flat and lots of surface area. Obviously smooth shop floor won't cut it. Get a beer!
Jeff you really should be wearing a mask or respirator when grinding on the stone. Stone dust in the lungs is not a good thing. Normally on the videos you see about people flattening a sharping stone they flatten it after only a few sharping session not when the stone is warn down as much as the one you had before you started working on it. With less ware it would also take less work to flatten it again. Another thing that may have help you flatten the stone easier would have been if you had used either water or oil to help lubricate the cutting that way the not only the sandpaper but the grit from the stone it's self would have been cutting the surface of the stone. Really probably the best thing to flatten a stone would be to get a Corse grit diamond stone.
I'm going to try to find a lapping diamond stone. Maybe that will work. This old stone has probably never been flattened. I'm going to keep working on it a bit and get it trued up. I agree that this should have been done many years ago. Lessons learned, and I'll get if back up to par soon.
Flattening a carborundum stone is a total waste of time. When they get too dished, just buy a new one. They're way cheaper than the amount of sandpaper required to flatten them. I do however use a belt sander and sandpaper on glass for flattening expensive natural stones. Arkansas stones are a real PITA since they're nearly as hard as the SIC or Aluminum Oxide particles used to flatten them. The key is...never let them get too out of shape in the first place!
What you need is a lapping stone or "truing" stone. They are very coarse and have grooves in them that both help in the lapping, and also run the cut particles off the surface. Lesson to be learned from all this is, don't let your stones dish and lap frequently
You are absolutely right. Don't let then get too bad before flattening them. I'll look into getting a lapping stone. I've seen them before.
I usually flatten my stone on at concreat block.
I tried that off camera. For this stone, it barely scratched the surface.
@@homebuiltshop that is on bad ass stone!
I used to just go sit on the cement patio on a sunny day and run the whetstone over the patio. It's flat and lots of surface area. Obviously smooth shop floor won't cut it. Get a beer!
Jeff you really should be wearing a mask or respirator when grinding on the stone. Stone dust in the lungs is not a good thing. Normally on the videos you see about people flattening a sharping stone they flatten it after only a few sharping session not when the stone is warn down as much as the one you had before you started working on it. With less ware it would also take less work to flatten it again. Another thing that may have help you flatten the stone easier would have been if you had used either water or oil to help lubricate the cutting that way the not only the sandpaper but the grit from the stone it's self would have been cutting the surface of the stone. Really probably the best thing to flatten a stone would be to get a Corse grit diamond stone.
I'm going to try to find a lapping diamond stone. Maybe that will work. This old stone has probably never been flattened. I'm going to keep working on it a bit and get it trued up. I agree that this should have been done many years ago. Lessons learned, and I'll get if back up to par soon.
Cool Video ! you had me rolling !!! It would be fun just to hang out with you . Stay Cool 😎
Flattening a carborundum stone is a total waste of time. When they get too dished, just buy a new one. They're way cheaper than the amount of sandpaper required to flatten them. I do however use a belt sander and sandpaper on glass for flattening expensive natural stones. Arkansas stones are a real PITA since they're nearly as hard as the SIC or Aluminum Oxide particles used to flatten them. The key is...never let them get too out of shape in the first place!