atlsupdawg#2

Didn't know if this was the right place to post but figured the topic relates to detailing..

Anyway, I have a nice 3/4HP bench grinder I've had for a couple years and I want to convert it over to a polisher. The shaft on the grinder is short and I would like them a little longer. Can this be done? If so, how would I go about doing it?? Wanted to see if anyone here knew before I start breaking this thing open..

davidv

iTrader: (2)

Are you sure this is a good idea? An oscillating polisher rotates back and forth to prevent possible paint “burn.” The bench grinder motor simply rotates.

DavesZ#3

iTrader: (26)

Are you talking about something like one of these?



Those things weight a ton. How are you going to be able to safely manipulate that around the surfaces of a car?

You could get a threaded coupler that would screw on the shaft and you could screw a longer threaded shaft into the other side. I just don't know if all the trouble would be worth it.

Just go to Lowes and spend the $109 and get the Porter-Cable 7336SP:

http://www.lowes.com/lowes/lkn?actio...6SP&lpage=none

atlsupdawg#2

DavesZ#3,
Yeah, I have one of those but I don't mean to polish the car with...LOL
I should've been a little more clear. I wanna start polishing aluminum, stainless, etc. The shaft is just so short compared to what they sell in the Eastwood catalog for $399. I thought I'd be able to convert my bench grinder over to a polisher since I hardly use it for anything else.

DavesZ#3

iTrader: (26)

Whew! You had me worried there for a minute.

Then you definitely try the threaded coupler. I did something similar a couple of years ago. I bought this coupler at Home Depot. It was about 1½" long, hex sided piece with a hole drilled and tapped through it. It would screw onto a drive shaft then I could screw a longer threaded rod into the other size of the coupler.

Here's an example of what I'm talking about...
http://www.strongtie.com/products/ats/ats-couplers.html

atlsupdawg#2

Thanks Dave...Any ideas on a shaft to buy? I think the buffing wheels form Caswell require a 1/2" dia. shaft

DavesZ#3

iTrader: (26)

I looked at the Caswell stuff when I was attempting to polish a plenum but never bought it:

http://www.caswellplating.com/buffs/alpolkit.htm

Their pieces come with what looks like 1/4" shafts so they would fit a drill or something similar. That won't work for the setup you're trying.

You might want to get a chuck that would fit the shaft of your grinder then you would be able to mount the Caswell tools in the chuck.

davidv

iTrader: (2)

LOL. I was wondering how are you going to polish a car with a 30 pound grinder.

atlsupdawg#2

LOL... I'd be out there looking like Steve Martin in "The Jerk"

schweatty

iTrader: (2)

from what ive been told, an angle grinder (that looks like a sander/polisher) should not be used to polish your car. a grinder is too fast and will increase the likelihood of burning into the paint. get a porter cable. theyre fool proof and only about a $100 at Lowe's