cockerpunk, on 12 March 2012 - 02:27 PM, said:
the test we are al talking about is rntlees test where he measured the seam on a microscope and then shot them for actually.
we should try that Bryce, i have the measuring equipment at work that we could use.
I presume you mean this thread?
If yes, interesting stuff. I don't seem to remember reading it before so it was fun to go through it.
Does anyone have any ideas on paintball polishing? I'm going to rule out a vibratory finish unless someone can convince me otherwise. I just think I'd get a bucket of paint goo.
I think tumble polishing is the best bet. Thus, the rotating bucket idea.
Everything I'm reading seems to suggest using a liquid during the process, but I don't think that's practical with paintballs. I still think airsoft bb's or something similar are our best bet. I could maybe see using sand, but I think it might be too rough on the shell of the ball. Maybe I'll give it a try just to see. I'm hoping the paintballs tumbling past each other takes a lot of the burr off, but we'll see. I'll see if I can't scrounge up some inner tube to coat the bucket to soften the process.
I don't know if I can use just a direct connection to a drill to spin the bucket. From what I'm reading it might be too fast. I might need to rig up some bike gears/pulleys to drop it down in speed. Maybe a BBQ spit.
I'm open to ideas on the following:
1. RPM and duration of tumble. Right now I'm thinking the numbers given for metal in that Wiki article are what I should be aiming for. I simply lack information to choose anything but that.
2. Polishing agents. Right now I've got airsoft bb's, wooden beads of various sizes, and I guess I could grab some sandbox sand.
3. Max fill of bucket. I'm thinking under 1/2.
4. Should I apply a slight heat (ie. warming) source to the tumbling process? The wife's pretty handy in the kitchen and she says when she's making fondant you want things warm, but not boiling. I don't know if this applies because the paintballs are already formed. I wonder if the heat would warp things to much. The only value I can see is that it might make polishing easier and the paintballs less brittle.
So, yeah, thoughts?