A boring head project.

Do you have a chevy axle stub that you can bolt the wheels to and then check the concentricity by turning the wheel with the DI stationary?

Have you checked the other wheels in the set? Do they have the same problem?
 
No I don't, and to complicate things the tires are still mounted. I have them deflated, and as tight as I want to make them mounted to the table. I have not checked the other wheels yet they are heavy, and a Royal pain to center with a tenths indicator.
 
Aukai said:
I had the spindle in neutral so it was being turned by hand, I have a Toyota to Chevy adapter to use as a gauge to drop in the hole. I just don't want to have to do this over again if the fit is loose for the hub, but off center enough that the lug nuts won't go in.
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Aukai said:
I had the spindle in neutral so it was being turned by hand, I have a Toyota to Chevy adapter to use as a gauge to drop in the hole. I just don't want to have to do this over again if the fit is loose for the hub, but off center enough that the lug nuts won't go in.
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Is the spindle speed to high? are you using any cutting fluid? Are you using the down feed? Have you changed the insert?
 
I haven't started the cutting yet, this is all just test fitting, and I do not want to make any mistakes. I can take it out, but can't put it back if I'm wrong :)
 
Aukai said:
No I don't, and to complicate things the tires are still mounted. I have them deflated, and as tight as I want to make them mounted to the table. I have not checked the other wheels yet they are heavy, and a Royal pain to center with a tenths indicator.
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Use a co/ax to center. I sometimes use a scrap of alum. and bore into that to set the boring head to the diameter before the actual cut
 
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I do not have a long enough arm for mine, the bore is starting out at 3"
 
I would take the tires off of the wheels. I would also head off to the local junkyard to get a chevy axle. Hopefully the axle will fit in the spindle of your lathe. Baring that you could make a cradle for the axle to sit in while you turn the wheel to check the concentricity of the wheel.

I am assuming that your friend got these wheels for cheap. If he paid 5K for them he should have just bought the proper wheels for his Toyota.
 
mickri said:
I would take the tires off of the wheels. I would also head off to the local junkyard to get a chevy axle. Hopefully the axle will fit in the spindle of your lathe. Baring that you could make a cradle for the axle to sit in while you turn the wheel to check the concentricity of the wheel.

I am assuming that your friend got these wheels for cheap. If he paid 5K for them he should have just bought the proper wheels for his Toyota.
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Buying an existing axle is a great idea! I was thinking that this was a good project for a lathe, though likely way too big (presumably an 18"+ OD) for most lathes.

BUT, I'd be tempted to try to mount that to a square block , hold that in my vise, and boring-head it that way.
 
I was able to get the coax arm over more, I thought it was maxed out. Which do I trust more the Noga flex in the spindle, and a tenths DTI, or the coax?
 
I can stay away from the anomaly, I'm within a couple of tenths staying away from that small sector with the DTI, the coax keeps jumping, and it's hard to see if it is settling on one graduation.
 
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