I purchased an inexpensive vibratory tumbler from Harbor Freight to experiment with dry polishing with walnut shell. the finished product was very sad! The pieces were all dinged up and I had to re-sand all of them.
I am guessing that the rough interior surface of the tumbling bowl imprinted on the pieces - and possibly the bowl was over loaded.
I am wondering if my problem is the cheap tumbler or if this method of processing always results in a few dings
Do the Ray tech tumbler have bowls with smooth interiors.
I would love to get some suggestions on how to make this finishing method work better!