Can this be done?

[witheringxscape]

okay, i have no knowledge of the art of cnc'ing and really never intend on it (other than the basics) but since the internet provided jack on this topic, i thought i'd come here.

anyway, i purchased some wheels for my car and the offset is way to low (+25) which make the wheels stick out. this is undesirable.

question is, can someone willingly (meaning will they actually do it?) shave off a couple of millimeters off the hub to raise the offset a little? i am looking for about 10 millimeters. the hub of the rim is also very thick.

if this can/is done, where would i find such a place.

TIA to all who chime in

p.s. this is the biggest forum i have seen!

[Kipper]

Anyone with a large lathe can shave a rim... imho.

[witheringxscape]

this was my assumption as well. but how often do shops have a lathe big enough? and, will someone generally not want to do this for liability reasons?

anyone???

[keebler303]

yes any decent shop can do it and no most will not want to due to liability. I would say return the rims or sell them on ebay and buy the right ones. 10 mm sounds like a lot to be taking off of a rim mounting surface. Most I've seen are less than 20 and i can't imagine removing 50% of the material from that area would be a good idea.

Matt

[witheringxscape]

Originally Posted by keebler303 yes any decent shop can do it and no most will not want to due to liability. I would say return the rims or sell them on ebay and buy the right ones. 10 mm sounds like a lot to be taking off of a rim mounting surface. Most I've seen are less than 20 and i can't imagine removing 50% of the material from that area would be a good idea. Matt

well, these wheels aren't brand new and they are rare. i would like to hold on to them. thing is, all this style of rim i have seen in this size have a +35 offset, not +25. go figure...

the bore on the hub is really, really thick though, so i am hoping i can get away with it. none of the machine shops i have talked to said they would do that.

would there be any way to narrow down shop that most likely have the tools for the job?

thanks for your input, i really appreciate it.

anyone else have any other info?

[keebler303]

what is the application? is 10 mm really a deal breaker for the wheels. some cars look good with a little rubber showing.

really any shop would have the capability. You would only need a lathe with a swing big enough for the radius of the rim and as long as the center is open (round hole) it could be held with the tail stock and away you go. It could also be surfaced on most mills. I would venture to guess that EVERY machine shop has a mill that would be capable of surfacing the back of the rim. Even a 50 yr. old bridgeport could do that.

Matt

[DareBee]

ANY machine shop has the right tools for this application.
Doesnt have to be turned, this can easily be done in a knee mill. I had to modify holes as well as offsets last time and did it all in the VMC (although I do have a lathe big enough to spin wheels)

[witheringxscape]

Originally Posted by DareBee ANY machine shop has the right tools for this application. Doesnt have to be turned, this can easily be done in a knee mill. I had to modify holes as well as offsets last time and did it all in the VMC (although I do have a lathe big enough to spin wheels)

how much did you shave off for offset correction?

everyone, so far, is saying they don't do this sort of thing.

thanks for the replies.

[handlewanker]

Hi, if your'e having difficulty getting someone to accept the liability, why don't you take an angle grinder to it and when it's near where you want it, rub it on a flat paving stone to reveal the high spots and then file them off. You should get it to within .005" this way. It's not so daft as you think, but when you get desperate enough any way is worth considering.

[ajl6549]

I'd be concerned with how thin you can go with the hub etc