Post by Chris Sikk on Sept 16, 2021 16:59:22 GMT -5
Hiya! Noob here.
As I said in my introduction, I have been collecting rocks and have decided to turn many into worry stones.
In the beginning, I was using my Dremel and some diamond bits, burrs, and disks to get the shape I wanted. I found the diamond disks were the most useful to get that finger or thumb concave spot in the rocks.
I got a ton of varying grits in wet sandpapers and went to town on polishing the rocks. The worry stones came out "alright." However, I wasn't super impressed with myself. Another batch, I tried carving the finger/thumb part of the worry stones and then putting them in a tumbler someone gifted me. I even spent some time with the various sandpapers on the concave portions before tumbling. After tumbling, I can see the issue. There are still very fine scratches on the concave portion. Thus, many of the stones have a decent polish, but that concave area is lacking.
Working with the diamond disks is likely contributing to these scratches. I am using the edge of the disk to cut that finger space. I've used a few diamond burs to smooth out the worst of the scratches, but it wasn't enough obviously.
My big idea was getting a large diamond ball burr. I ordered it and then I came here and started reading about the diamond pastes. I am wondering if this is a better idea. It seems the pastes come in different grit sizes which is nice.
In my impatience in waiting for my large ball burr, I found a stone ball burr that was sizeable to smooth out the concave sections. Would that scratch it worse or no? Hmm. It was cheap, I bought it and tried. The results were...well even. The concave section of the stones looked in a similar shape. Maybe I didn't need to buy the large diamond burr?
At last my friend the diamond burr came in the mail today. I ran it over some of my worry stones and I seem to be less impressed than the cheap stone burr. They seem to have micro scratches everywhere. That said, the stone burr could have been just roughing the whole area up.
Anyone have thoughts on making worry stones?
Diamond paste the way to go perhaps?
I am thinking the various grits of diamond paste may help get a better shine. The diamond bits I use almost seem too abrasive and the following stages of sandpaper, 100-20,000, do not get into the small scratches the bits create.