Most visitors online was 1660 , on 12 Dec 2020
Yes, it looks way off in the video but then I did the crosshairs on a hole and it came out fairly good. See post #3. I've since done a clock that needed more than 10 bushings and it's on my test stand purring away right now.It looks like something about the center finder itself isn't straight, like there is some sort of runout at the tip. The plate isn't being moved but the tip is wobbling as it's rotated.
There is definitely a problem with your machine setup and you will need to resolve that before it will be of much use to you. If the center finder fits loose that's no good. If that is the case I would also be concerned whether the reamers also fit loose. Then there is the possibility that the tool holder was improperly machined with an off-center hole. Who is the maker of this machine and is it new? If you have a lathe you can chuck the tool holder and easily see if the hole in the tool holder runs true. The centering bits sold by some suppliers are crap. If the reamers and the center locater all fit loose you will have a problem forever unless you have a new tool holder made that fits and runs true.............I'm still investigating the reason for that orbiting in the tool. I think it might be the bit holder has a slightly oversized hole for holding the reamers. It has a little too much play.
Yeah, the machine's piston is nice and tight, I think it's fine. It's the bit holder. I think the hole was drilled too large. It has a set screw that is pushing it over to one side and I think that is where the orbiting is coming from. I'm going to ask the maker to look at his specs and make another for me.If the reamers and the center locater all fit loose you will have a problem forever unless you have a new tool holder made that fits and runs true.
DanThis seems to have worked to get the bushing centered but I just wondered if other machines perform similarly?
Yes, I'm sending the tool back so he can find the problem. I trust him to make it right. He has sold many of these machines and never had a callback. I'm sure he'll get it back to me soon in working order.Send what back? The bushing tool?
If I could go back 20 years
If I could go back 20 years I would go back 40 and become a clockmaker instead of a builder. Really, I wish I had been born in the mid-1800s. I would have been an inventor. I would have loved being involved in the industrial revolution. But, I'd be dead now so I will continue the path that God has chosen for me.Did you send the centering bits back, along with the bushing tool? Willie X