This all started while making a grinding wheel balancing arbor. I’ve purchased a whole bunch of wheel arbors so I wanted to mount all my wheels and balance them because they will not be taken off for the life of the wheel. Turned the arbor between centers everything went great. All I need to do is the taper. So I wanted to check runout in arbor.
I just made a 3point stand for my surface plate so I wanted to check level before I checked arbor. I pull out the level and do a quick check on level. When spun 180 it was two lines off so I decide to adjust level. I noticed that I wasn’t getiing consistent reading so I investigate. Find bottom of level isn’t flat it’s rocking on 3 corners. You can see just by spinning on plate the rubb marks. Guess I’m gonna have to scrap in
So I end up going forward and check runout on arbor. Pull out a set of V blocks that are brand new. Suppose to be match set within .0002. Well either my plate and gauge is way out or these are out of spec. I got a difference of .0045 between surfaces. Corner to corner on each block was within .0005 but to each other was .0045.
Arbor runout was .0003 with the unreliable blocks.
So now it looks like I’m gonna have to grind in these v blocks. Scrape my level and check all my other stuff. Both level and v blocks were bought from cdco tools. Guess quality isn’t there. I never checked and wouldn’t have thought so bad but it’s true buying offshore stuff is just buying the material which requires fine tuning to meet advertised spec.
I do love the challenge and will get within spec but just added more to the list
I just made a 3point stand for my surface plate so I wanted to check level before I checked arbor. I pull out the level and do a quick check on level. When spun 180 it was two lines off so I decide to adjust level. I noticed that I wasn’t getiing consistent reading so I investigate. Find bottom of level isn’t flat it’s rocking on 3 corners. You can see just by spinning on plate the rubb marks. Guess I’m gonna have to scrap in
So I end up going forward and check runout on arbor. Pull out a set of V blocks that are brand new. Suppose to be match set within .0002. Well either my plate and gauge is way out or these are out of spec. I got a difference of .0045 between surfaces. Corner to corner on each block was within .0005 but to each other was .0045.
Arbor runout was .0003 with the unreliable blocks.
So now it looks like I’m gonna have to grind in these v blocks. Scrape my level and check all my other stuff. Both level and v blocks were bought from cdco tools. Guess quality isn’t there. I never checked and wouldn’t have thought so bad but it’s true buying offshore stuff is just buying the material which requires fine tuning to meet advertised spec.
I do love the challenge and will get within spec but just added more to the list