I came across this video in my youtube feed and thought it might be useful for some of you cue makers. This guy has some of the best manual machining content on YT, IMO. Enjoy.
Technique to bore ID of trim rings
- Thread starter iusedtoberich
- Start date
JC
Coos Cues
Since cue rings aren't necessary to have the center hole to exacting tolerances I prefer a delrin Jig threaded together. Quick to build, cheap and easy on your tooling if you bump it. Preston Jeter is currently making a really nice metal one but the downside to all of these type of jigs is that the OD has to be pretty exact. You can build a jig for this as well if your rings are pre made or not all the same od.
Here is one I made in a short while for large OD rings that I wanted to bore the ID hole larger than .750 for a special project. I have built several of these for different size rings. But you get the idea.
![P1050438 [1600x1200].JPG](https://forums.azbilliards.com/attachments/p1050438-1600x1200-jpg.608747/ "P1050438 [1600x1200].JPG")
![P1050441 [1600x1200].JPG](https://forums.azbilliards.com/attachments/p1050441-1600x1200-jpg.608748/ "P1050441 [1600x1200].JPG")
Here is one I made in a short while for large OD rings that I wanted to bore the ID hole larger than .750 for a special project. I have built several of these for different size rings. But you get the idea.
I made a few ring boring jigs based on DZ's design. http://dzcues.com/images/jigs/IMG_9530a.jpg
Jeter sells aluminum kind too. Really nice ones .
Jeter sells aluminum kind too. Really nice ones .
JC
Coos Cues
JC
Coos Cues
So if you place stitch rings at all positions how many different sizes do you have to build?
When making Brass or copper shims, I have a semi fixture that I use. It has a plate with a spigot on it, that is held normally in the 4 jaw chuck. The layers of shim are places between two plates of sacrificial Al plates. Clamped through the corners, and then bore the inner hole. They can then be transferred to a mandrel for OD trim, or you can use a clamp washer and bolt tightly through the centre. Then carefully trim away the outside corners down to the diameter required. With care this will make very concentric shims if you are starting from sheet stock.
