A magnetic polisher speeds up the polishing process considerably. However, there are still a number of steps required to polish a piece and to maintain the machine. Since I do a lot of casting, I invested in Raytech’s CMF-400 model and have been very happy with the results. These instructions are geared toward the smaller sized machine. For the larger machines, more items can be polished using less time.

It is important to remember not to leave the tumbler on the base when the machine is not in use, or the shot will eventually become demagnetized. Also, unplugging the machine is an extra precaution in case the lid is accidentally lifted from the tumbler while the machine is on. If this were to happen, all that tiny steel shot would go flying!

Read more