Dan&Darci Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Geology Toy for Kids All Ages

works great! variable speed, day timer both work amazing! my only suggestion would be to enclose replacement lid seals, we wore through the rubber on the inside of the lid after only about 2 batches run through. otherwise quite happy with the purchase! just keep rollin'!

I often collect rocks wherever I go, I have for years, and I’ve wanted to get a rock tumbler for some time. When my daughter expressed interest finally getting one was an instant no-brainer. I liked the look of the Dan&Darci machine; it looked solid and stable, it was professional looking. I liked that it had multiple speeds and a multi-day timer. As soon as we got it my daughter couldn’t wait to get started. The machine was as solid and sturdy as it appeared and the instructions were very clear and easy to follow. We put in the rocks, grit, and water, sealed the barrel and turned it on. It made much less noise than expected. We’ve had this running for a while; no issues, no leaks, no problems … many jealous friends and family members...

I bought this for my son who is very interested in finding and collecting cool rocks and "crystals". The tumbler drum is well made a rubberized to reduce noise, and seems to be water tight. The tumbler base is also sturdy and easy to use. The machine is still noisy, so we under up places the tumbler on a folded up blanket, then placed a large cardboard box over the tumbler and covered the box with a blanket to muffle the noise enough that you couldn't hear it from the room nextdoor. One downside to the digital control panel is that if you lose power (which we have several times in the last week, then the tumbler will stop (of course) but it will also lose how much time was remaining on the current cycle. But I doubt that many tumblers at this price range would do any better. Note that the kit comes with rough stones that you can polish and a set of grit powders. The grit does not seem to be reusable as it seems to get ground into a super fine powder. So if you want to polish additional stones you will need to buy additional grit.

Good quality tumbler, starter rocks and starter grit! I recommend for those starting out.

So far so good, but customer service is lacking so keep that in mind. I emailed weeks ago and never got a response to a question. When the tumbler shuts off it is still on day 1, so I wasn't sure if it was supposed to be that way. I thought it had stalled, so I ran it another day. Later on, I ran a second load of agates in it, and it did the same thing, so I can only assume it is supposed to do that. I've only ran it twice, but I'm loving the results. I didn't use the grit they provided. I use polly grit, and I'm getting awesome results. I will use their grit one day to see what it does. I do lapidary work, so I was doing things different. Either grit you use, I recommend going to step 3, just like other reviews said. Here's something to try. Use grit 3 fine pre polish, a tablespoon, along with half a tablespoon of #1 coarse. Run it for 3 Days on speed 3. Then run it with the same contents for another day on speed 1. Rinse everything. Reload and add in grit 4, tablespoon, with half a tablespoon of cerium oxide. Run the grit 4 and cerium for 2 days on speed 1. I had very good shine and rounded edges. But keep in mind, this process is for agates. For softer stones, you'll want to slow your speed and maybe drop a day. If this thing keeps working, or at least a good while, I would definitely invest in it again. My only regret is that I didn't buy their larger tumbler.

Comes with only enough grit for one set of rocks, must purchase more grit for more rounds. The tumbler pushes the barrel towards one side such that it pushes constantly against the washers on the rollers that keep the barrel in place. It started to wear down a groove in the rubber on the barrel, so I turned it metal cap side towards the washer it was pushing against. This caused wear on the washer. For grit 3, I angled the barrel by propping one side of the base up so gravity would pull it away from the washer as the rollers pushed it towards the washer to balance it in the middle. This was a little better, but I started you see wear/divets on the rollers. It seems like this just isn't build for the repetitive motions needed for days of running for each grit. It takes about a month for each round off new rocks. We have it running in the garage on the other side of the wall as the master bedroom and we can hear it through the wall. My husband thought it was water leaking at first until he found where the noise was coming from.

So far we are on step 2 of our first set of rocks tumbling. It’s working great and my daughter loves that it has a digital display on how many days are left that she can check each day.

Perfect for my Grandson, age 8. Great starter tumbler. It is loud, but hey we weren't expecting a professional product. It operates perfectly as I was expecting.

Kit completo per iniziare a lavorare

Il tient toutes ses promesses. Le mode d'emploi devrait être plus détaillé à mon avis. Produit à se procurer, d'ailleurs je vais de ce champs en recommander 1 autre.

Having looked at loads of these tumblers and been shocked at the prices charged, this one seems to be a bargain. Very well made and comes with everything needed to get started. Good sized strong drum and sturdy, professional feel base. Useful timer and speed controls. The drum on mine came with the additional metal end (not shown in picture) which does make it run ourt of true on the rollers as others have mentioned, but it pulls off easily and seems better for not having it on there.

Die Trommel ist aus relativ festem Gummi und hat ausreichend Platz für 5 Kieselsteine mit ca. 5cm Durchmesser. Packt man zu viele Steine in die Trommel, dann dauert das Polieren länger oder funktioniert nicht weil die Steine sich nicht genügend bewegen können. Die Trommel ist dicht und läuft ganz gut… allerdings mit einem hörbaren Geräusch. Am besten man stellt den Tumbler in die Garage und lässt ihn dort laufen. Man kann die Drehzahl einstellen und mit einer Tages Laufzahl einstellen nach wie vielen Tagen das Gerät sich abschalten soll. Wichtig ist, dass die die Steine sich gut bewegen und die Trommel dadurch rund läuft. Na ja, und immer wieder betone ich das man Zeit braucht. Nach 5 bis 7 Tagen kann man dann die Trommel öffnen und den Inhalt ausspülen… Trommel und Deckel reinigen und mit der nächsten Poliermittelstufe befüllen… frisches Wasser einfüllen… Trommel gewissenhaft und mit Gefühl verschließen und los gehts. Viel Erfolg.

Funkar bra, kul att slipa stenar