By the way, here’s another conversation about squaring the spindle to the work surface: If you don’t have one already, getting a dial indicator will be really helpful… and if it comes with a test indicator, you can measure your runout. 
By the way, here’s another conversation about squaring the spindle to the work surface: If you don’t have one already, getting a dial indicator will be really helpful… and if it comes with a test indicator, you can measure your runout.