I remember that mod of yours well Dan
Bill From: legacy-ornamental-mills@googlegroups.com <legacy-ornamental-mills@googlegroups.com> On Behalf Of cdkr...@gmail.com Sent: Saturday, September 23, 2023 12:12 AM To: Legacy Ornamental Mills <legacy-ornamental-mills@googlegroups.com> Subject: Re: Thread cutting target reached! Some time ago I had a series of posts about that index gear mounting modification. I made a special bushing that allows the index gear to spin freely. At the outboard end of the bushing is a flat holding the index arm secured to the lathe spindle. You'll notice (if you have a REVO) that here the index gear runs on the OUTSIDE duplex gear and the "change rotation" idler runs on the INSIDE duplex gear, "inside out" to the original. This was necessary because of the space the bushing takes up. This allows me to index any number of starts (up to 24) on a work piece with confident repeatable accuracy. The method of limiting starts to the relationship between cutter and circumference chafed me. Yes, there is still a loose relationship needed to create attractive profiles but this eliminates that calculation and makes repeat passes accurate, useful when all the passes are done and some touchup is needed. If profile passes are stacked, this assures that the subsequent passes are perfectly aligned with the previous, or can predictably be offset. Me thinks it opens up creative design possibilities that might otherwise be kinda sketchy. For example, if I want to create some form of checkering, this makes it trivial. If the index gear is restored to it's original position on the lathe spindle without the bushing, it goes back to factory original where the factory index pin is usable. I found the video that explains it <https://drive.google.com/file/d/1pRAFDnFUQBSPXMCgvlafoLpx7D6LaDC-/view?usp=sharing> , and reposted it. It will come down soon because I use the space for other things. DanK On Friday, September 22, 2023 at 9:10:24 AM UTC-4 Curt George wrote: Good morning Dan. I don't want to change the subject. but I do have a question on your photo. INDEXING Plate in your photo? Please tell us more about that! C.A.G. <https://groups.google.com/group/legacy-ornamental-mills/attach/306d7fc216b1/1695388138276blob.jpg?part=0.1&view=1> On Friday, September 22, 2023 at 08:48:45 AM EDT, cdkr...@gmail.com <mailto:cdkr...@gmail.com> <cdkr...@gmail.com <mailto:cdkr...@gmail.com> > wrote: Tim, I don't understand why you don't have one like this. Doesn't EVERYONE have 1/2" acrylic pieces laying around? LOL! It's a piece of discarded colored plastic that had the right shape and seems sturdy enough. I milled a slot for height adjustment and mounted a piece of HDPE with a groove in it. It too has a slot for adjustment, but doesn't really need it. I'm a hoarder and keep stuff (organized) for up to 50 years before I find a use for it! And it still happens that the week after a clean out, I NEED what was thrown away. You want one? DanK On Thursday, September 21, 2023 at 10:10:01 PM UTC-4 Tim Ziegler wrote: Wow very cool. I like your steady rest too. You make that or is that Revo specific? I don't have one with mine. Kind Regards, Timothy J. Ziegler Ziegler WoodWork & Specialty Ziegler Laser Worx LLC 14171 160th Ave. Foreston MN 56330 320-294-5798 shop 320-630-2243 cell On Thu, Sep 21, 2023 at 3:58 PM cdkr...@gmail.com <mailto:cdkr...@gmail.com> <cdkr...@gmail.com <mailto:cdkr...@gmail.com> > wrote: This is the item that started the gear calc frenzy. It meets all my expectations after putting a steady rest under the center that tended to move away from even the slightest cut. The REVO is accurate enough that this thread was not distorted in the least by at least 8 passes trying to get the thread in the middle right. Two of those were after the steady rest went on. <https://groups.google.com/group/legacy-ornamental-mills/attach/c63befd9f86/ThreadSuccess2.JPG?part=0.2&view=1> <https://groups.google.com/group/legacy-ornamental-mills/attach/c63befd9f86/SteadyRest.JPG?part=0.1&view=1> Something close to this is the target. <https://groups.google.com/group/legacy-ornamental-mills/attach/c63befd9f86/WoodPlane2.JPG?part=0.3&view=1> DanK -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental...@googlegroups.com <mailto:legacy-ornamental...@googlegroups.com> . 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