I've recently acquired a TS with lots of cast iron that had been
neglected. The tops cleaned up nicely, but the slots have been
difficult. Any tips for getting the rust out of the nooks and
If the table saw is worth anything at all the miter bar will not fit in the
slot with sand paper wrapped around it. I spray the slots with penetrating
oil and scrub with a brush. I then let the oil dry and use a brass brush to
wipe off the surface rust.
Spray the slots with WD40 or penetrating oil and use a wire wheel on a drill
motor to clean out the slots. 3M also makes a wheel that goes on a drill
motor that works very well for this type of thing. They cost about $7 and
are available at most automotive stores like Advance Auto or NAPA. I think
I'd use a wire wheel though since it will probably get into the corners a
little better. The 3M wheel will wear down and contour so that it will
eventually get in there, but the wire wheel will probably do so quicker.
On 25 Nov 2004 20:08:39 -0800, email@example.com (Hylourgos) wrote:
You can use wet pad electrolysis. The same old bucket process, but
you do it on the top of a rusty metal item that's too awkward to
Turn the slot into a trough by sealing the ends with gaffer tape etc.
Pour electrolyte into the slot (washing soda in water) and then lay a
steel (or stainless steel) rod down the length of the slot, raised on
little plastic spacers (polystyrene foam pizza base is handy and tears
to shape) Power up, negative on the thing you want to keep.
There's no way to clear the rust out, so this process is awkward for
really rusty parts. But it's great for details and unlike abrasives is
For rust spots on the surface, use a pad of paper towel or kitchen tea
towel, soaked in electrolyte. Use a steel plate anode on top and
weight it down, enough to make good contact, not enough to wring the
pad dry. Make sure the pad stays wet, by annointing it every few
hours. A big hole in the middle of the anode is handy for this.
I think I'll try the electrolysis first (thanks Andy), since I've
never tried it on anything but a submersible piece, then clean up the
remains with a dremel and wire brush, or even try the sanding pads or
rubber pads (Wonderblocks?).
Good suggestions all. Happy holidays,
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