Polishing a Large Puddingstone

Learn how I polish large puddingstones. Here are the steps I took to polish this. I started with my normal, dry angle grinder. The cup wheel is 50/60 grit, but is way more aggressive than the soft 30 grit wheel I followed it with. The angle grinder also spins much faster than the wet stone polisher. I spent 17 minutes shaping the rock and removing holes in it. Next I moved to the wet stone polisher. This has a soft backer, so the pads can flex to the shape of the rock. The grits and times are as follows: 30 grit - 40 min. 50 grit - 11 min. 100 grit - 11 min. 200 grit - 11 min. 400 grit - 8 min. 800 grit - 11 min. 1500 grit - 10 min. 3000 grit - 8 min. At the end, I used a cloth polishing wheel with aluminum oxide polish. I think I'll skip this step in the future. I don't think it made much, if any, difference. – MERCH – https://michigan-rocks.myspreadshop.com – FACEBOOK –   / michiganrocksrob   – INSTAGRAM –   / michiganrocksrob   – KINGSLEY NORTH – Kingsley North is a lapidary store in Michigan's U.P. They make a great cab machine and sell many other brands too. They have a huge selection rough rock, tumblers, grit, jewelry supplies etc. at good prices. I buy most of my coarse grit from here in 45 lb. bags. It's the best price I have found. If you buy using the following link, I make a small commission. http://bit.ly/3MerxdI This is the cabbing machine I use: https://kingsleynorth.com/kingsley-no... – THE ROCK SHED – I buy a lot of lapidary supplies from The Rock Shed. I don't make money from your purchases there, but they have good prices and good service. This is where I buy my finer grits and polish. http://rockshed.com – AMAZON STOREFRONT – I also have an Amazon storefront. This is where you can find other products you may have seen in my videos. As an Amazon Associate I earn from qualifying purchases. It doesn't cost you extra. http://www.amazon.com/shop/michiganrocks – SUBSCRIBE – On Michigan Rocks you can join me on relaxing rock hunts in picturesque Michigan. I'll also show you how to polish rocks and teach you other lapidary techniques. New videos are posted every Friday and some Tuesdays. Subscribe now so you don't miss any upcoming videos! http://www.youtube.com/c/MichiganRock...