tag:blogger.com,1999:blog-2807403883562053852.post555334443371494366..comments2024-03-27T08:40:31.785-06:00Comments on Clayton Cramer.: There's A Lot More AR-15s Out ThereClayton Cramerhttp://www.blogger.com/profile/03258083387204776812noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-2807403883562053852.post-66047569945628010752016-11-05T22:18:58.334-06:002016-11-05T22:18:58.334-06:00More hp needed. You have too much surface engageme...More hp needed. You have too much surface engagement (180 degrees), and the resultant chatter drives the cutting edges into the material and locks it up. This is partly due to all the components not being ridged enough to keep that cutting end from wobbling. It doesn't take much flex at the tip to cause problems. <br />You really need to upgrade to a bigger mill/drill, at least, to minimize these sorts of problems. Of course, it never goes away completely. You can always create difficulties, but it's much nicer to only run into them when pushing the boundaries of your equipment on an infrequent schedule. Yours are an everyday occurrence, it seems. Can you add a room off of your garage to fit a real mill and lathe? Maybe a very well insulated shed that is sort of/temporarily connected to the garage for heat and winter access? You have a paying hobby. Why make life difficult to deal with it? Spend time and effort on more important aspects of it, and stop slogging through a swamp. Drain it and move on.Willhttps://www.blogger.com/profile/00722792638246578812noreply@blogger.comtag:blogger.com,1999:blog-2807403883562053852.post-17833983886854691692016-11-04T09:06:24.467-06:002016-11-04T09:06:24.467-06:00I really don't need high precision on this slo...I really don't need high precision on this slot. The big issue is that the mill tends to catch in the slot and stop turning.Clayton Cramerhttps://www.blogger.com/profile/03258083387204776812noreply@blogger.comtag:blogger.com,1999:blog-2807403883562053852.post-64436636571736649932016-11-03T23:47:17.097-06:002016-11-03T23:47:17.097-06:00At least as evident from your typing skills, it ap...At least as evident from your typing skills, it appears as if you've recovered from your stroke. And thank God for that.Michael The Magnificenthttps://www.blogger.com/profile/03820094319077676224noreply@blogger.comtag:blogger.com,1999:blog-2807403883562053852.post-34613708646401121762016-11-03T23:36:37.059-06:002016-11-03T23:36:37.059-06:00My question is whether your mill system is capable...My question is whether your mill system is capable of keeping that long of a bit stable enough to hold any sort of tolerance. Plus, is the collet setup sufficiently true to keep the tip wobble within reason. Don't forget that that bit makes a very long lever arm, so cutting travel will have to be very slow. Are you expecting to cut both sides of the slot at once, or making a second pass to cut a wider slot than 5/16"? <br />Make some practice cuts first!<br /><br />Frankly, I would be considering getting an indexing head to mount the part in, and cut the slots with a short bit. You may be unpleasantly surprised at how much deflection you can have in that sort of milling bit.Willhttps://www.blogger.com/profile/00722792638246578812noreply@blogger.com