First off the gun I built isn't shit. Second I didn't cnc machine anything. I never said I did. I bought this project as a kit online that came with everything needed to complete. I did not finish it on a cnc machine. I'm not a machinist and have no clue how to operate a cnc machine hahaha so wtf are you even talking about. The kit came with a rail cutter that is easy to use. It also came with a drilling jig so you use a simple powered drill to drill the holes. This isn't a very hard project like you think. At least not with the jigs I bought. I'm not the only one who as said it and I'm definitely not advising it but a 12 year old could complete the lower with these jigs, they are that easy. Honestly the hardest part was assembling the fucking pistol cause I'd never assembled a sig haha. One of the anodizing video I posted was part 3 of a 4 part video series on how you can build one of these 80% sigs. I'm not trying to be an asshole and I might have gotten a little defensive when I could tell you were trying to incriminate me on this forum. I apologize. It's just a battery acid anodize bath braaaaa lol. It may look good in the photos but it already scratching, especially the takedown lever has been scratching the frame and also I've noticed in the magwell the magazine is chaffing on the inside of the magwell which is wearing through to the bare aluminum but it doesn't matter cause you can't see in there when your shooting. Anyways like I said earlier I looked into the laws before I started this project to make sure I was within my legal boundaries. SA if you really want me to write up some directions on battery acid anodizing I guess I could. You will need distilled water, baking soda, plastic buckets, sheet of lead, Turkey pans, titanium or aluminum wire, die(you can use clothing dye), battery acid, battery charger. But basicly you degrease your aluminum your anodizing and your wire in a decreasing bath using dish soap lol. Then you rinse it off good and use gloves so you don't get any finger oils on the aluminum. Use a plastic bucket for your anodize bath. Needs to be in a ventilated area around 70 degrees. Set your lead sheet in the anodize bath bucket and fill it with 1 gallon of distilled water. Then pour the battery acid in to the distilled water. Use 1 quart so it's 4 to 1 ratio of water to acid.. be careful when handling the acid. (Wear gloves that are thick or chemical resistant) connect negative end of battery charger to the lead. Turn your charger to 2 amps. Place the aluminum your anodizing into the bath and suspend it with the wire and a wooden stick. Connect your positive lead to the wire. If bubbling occurs on the lead it's working and the anodizing has started. Leave it for an hour in there and make sure the temp is around 70 degrees. Check it with a thermometer. Prepare your die bath and boiling bath while your waiting. The dye bath is distilled water and dye and should be at around 125 degrees. The boiling bath is just distilled water. So once it's been in the anodizing bath for an hour, rinse it in distilled water and then put it in the dye bath. Leave it in there for about a half hour. Then take it out of the dye bath and put it in the boiling bath for a few mins. Take it out let it cool off and dry that son of a bitch off and assemble ye pistol lol! I'd recommend watching or reading some tutorials or video as there could be a few details I left out. Also enlist a buddy to have around for moral support lol and to make sure your following the directions. I chose my father haha






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