Sorry if this is slightly OT but this is probably the group with the most experience with tumbling.
I need to make a bunch of wood blocks - for use in a classroom. Have got the wood cut and need to round off the edges ever so slightly before they get played with. This is something that we have always done on a sander - but that takes quite a while. SO - can wooden blocks be tumbled? what would you tumble them with? since I will need to make a tumbling barrel, is there anything I need to keep in mind? Speed? How long?
Any help/comments will be useful.
And yes, I end up with this type of job every so often so it would be worth the effort to make a tumbler.