Restoring Tired/Rusted Metal?

[andy_con]

ive just purchased another cnc mill and it needs some TLC.

the bed and other metal parts have light rust on them, anyone got any tips for restoring the metal?

[logsquared]

Synthetic steel wool works good. I find the green or black 3M works the best.

[turbohead]

It does not look too bad. Spray it with WD-40 and let it sit for a about an hour then wipe with an old rag.

[kitatit]

+1 for WD40.

If its bad you can buy rust converter solution. If is just light surface rust go with the WD40.

Have fun
Kit

[VJ AIWAZ]

mine has a bit of rust as well

i hope its not trash (it was under salt water )

[laserist]

There's an electrolitic method, but you'd have to disassemble the beast.

[danielbriggs]

http://www.arceurotrade.co.uk/Catalo...ives/Hand-Pads

[mixedgas]

Very fine wet sandpaper, a hone stone, naval jelly aka phosphoric acid solution. Or electrolytic derusting.

All remove metal. There is no converting the rust back to iron, just removing it.

I have a standard size X-Y table I can sell you from when I upgraded to the oversize one, with much less corrosion. Ie just spotty corrosion here and there.
Have to make sure it is the right one though...

Or just order what you need from Little Machine Shop dot com.

I agree with starting with WD40. Then read up on "Scraping the Ways"....

Steve

[White-Light]

phosphoric acid solution.

All remove metal.

Steve

I always though that phosphoric acid left the metal in place and turned the rust to iron phosphate which then formed a hard black shell. I could be wrong though.

I found this on instructables Andy about electrolytic de-rusting. I'm sure Steve or Greg can confirm if this is the correct method as I know nothing about it!

http://www.instructables.com/id/Elec...val-aka-Magic/

The link from off that page: http://web.archive.org/web/200708191...lyticrust.html

[tonyaztec]

+ another one for WD40, fine wire wool and elbow grease, its only surface rust.