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Another A+
I can't get over how well you have modeled all this. It looks so active, so very dirty, grimy. The only thing missing is the head splitting noise and the smell. It still makes me want to put in ear plugs.
Sorry to come in on your thread with this question, but since I can't find it in a search, was it you that posted the "Flicker Circuit"? I was just wondering if it worked for you and with the values given.
But if you want to get some truly realistic looking rusty scrap loads you should experiment with the this stuff we call 'the Finish'. Its a two part system. One part a gray paint with iron shavings in it. The other part is a chemical reactor formula that turns metal into rust. Quite useful on stuff that isn't painted. You can get it a Micheals craft stores. I've been jigging with the Finish recently. That system crossed with some of my own know-how got some sweet results. In conjunction with other materials, I used it on my own custom made scrap load.