Parts/rock tumblers

[njhussey]

This is all good as I need to make a couple of tumblers for work to tumble the wedgepins we have as some are a little rusty on the outside straight from the machinists and some have a little surface rust from storage. I'll be checking out the videos and looking at what can be done. At the moment we use a small weed spray bottle adapted for the C4 lathe!! Would be interesting to see what's the best media for tumbling, what do people use for media for steel?

[Wal]

what do people use for media for steel?

According to the link above:

For polishing steel, stainless, aluminum and plastic parts, porcelain media is the most common media used. If you are doing stainless or other steels any shape of porcelain can be used. One of the most common polish medias used is a 3/16-3/8 angle cut cylinder. The theory is that a cylinder has more surface contact with the part than other shapes.