Skip navigation

This one comes from the “I’m too cheap to just buy one” project list. Having taken up rock-hounding in Montana, we found ourselves with the need to tumble some rocks. If you don’t know what rock-tumbling is, it’s the process used to polish stones like the ones they sell in gift shops.

The parts list for this is pretty short. We went to the goodwill and picked up an old inkjet printer. The parts I was after were the rollers and associated motor. Then all you need is a frame and a round container to place on the rollers. The frame is mostly improvised from screws and plastic parts from the printer, so I’ll just let the pictures do the explaining. Total BOM cost was about 7 dollars.

RockTumbler_1

RockTumber_2

RockTumber_3

RockTumbler_4

RockTumber_5

2 Trackbacks/Pingbacks

  1. By Hackaday Links: October 11, 2015 | Hackaday on 11 Oct 2015 at 11:01 pm

    […] rocks from Montana that need tumbling. This requires a rock tumbler, and why¬†build a rock tumbler when you can just rip apart an old inkjet printer? It’s one of those builds that document themselves, with the only other necessary parts being […]

  2. By Tech News / Hackaday Links: October 11, 2015 on 12 Oct 2015 at 12:08 am

    […] rocks from Montana that need tumbling. This requires a rock tumbler, and why build a rock tumbler when you can just rip apart an old inkjet printer? It’s one of those builds that document themselves, with …read […]

Leave a Reply

Your email address will not be published. Required fields are marked *

 characters available