On Sat, 7 Oct 2017 12:22:18 -0500, Leon lcb11211@swbelldotnet wrote:

On 10/7/2017 9:30 AM, Brewster wrote:
On 10/3/17 11:30 AM, Greg Guarino wrote:
[not my drill press]

Any idea how to either remove the rust or at least smooth it down enough
that the friction isn't in impediment to adjusting the table height?


Electrolysis. Same method to clean up old hand planes. Requires a car
battery charger and a bath of electrolyte (washing soda I believe)

You will need to separate out the column and place it into the solution.


-BR

Best to check that, the common electrolyte is sulfuric acid. That would
quickly eat away the metal too and very quickly. ;~)
Derusting "electrolyte" is NEVER acid. Washing soda IS one of the
most common