David Hendley on sun 30 aug 98
You are right, this won't be an issue when you are more skilled,
but it would probably still be annoying.
If this wheel is fairly new, I think it would be worth a try to
try to get the manufacturer to make it right.
A machine shop can fix your wheelhead, if you want to spend
the time and money.
Remove your wheelhead and take it to a machine shop.
They will mount it on their metal lathe and trim
it until it is true.
Also, ask them to check and correct, if necessary, the concentric
rings on the face of the wheelhead.
Or, you could just buy a new wheelhead!
David Hendley
Maydelle, Texas
At 08:50 AM 8/29/98 EDT, you wrote:
>----------------------------Original message----------------------------
>Thank you for the advice both here and privately on glaze videos. I now have
>Robin Hopper glaze videos on order.
>
>I remember a discussion sometime last year about wobbly wheels but I'm
>not sure if they were referring to the problem I notice with mine. Centering
>has been a struggle for me and last week I realized why. My wheel isn't
>centered. It's level and it doesn't wobble (as in up and down) but it just
>isn't mounted on center......how can that be? I'm sure it doesn't effect
>the throwing but creates a terrible optical allusion. When I close my
>eyes and center the clay...I can tell it is centered, open my eyes and the
>clay looks like it's wobbling and off center. I am now taking a small
>paint brush and dipping it in water and letting it wet a ring on the wheel
>before I start centering. It stays wet long enough to give me a centered
>visual around my centered clay, sort of a landmark to get my focus off
>the wobbly look. I expect as I get more skilled this won't be an issue,
>but I really wish it was centered and looked centered around my clay.
>Is there some way to fix this? My hubby is an engineer and he has
>looked at it with me and agrees the wheel is off center. It seems like the
>only way this is possible is that the wheel wasn't mounted on its shaft in
>a central position. It also seems like if it was, it wouldn't matter where
>on the table it was mounted, it would still be centered?? Any thoughts?
>
>BTW, a strange thing happens to the emails I send to this list. The end of
>all sentences gets cut off. I am now hitting _enter_ to make line breaks
>sooner. Anyone have that problem or know why?
>
>Elizabeth
>
Gary Huddleston on sun 30 aug 98
------------------
=3E
=3E Elizabeth
=3E
I have an old Aamaco kick wheel that, I am told was
designed with an off center(slight) kick plate. It has something to
do with centrifigul force keeping the wheel going longer.
It too has a perception of making the whole wheel off.
The wheel was updated slightly with a friction type motor
drive which helps greatly on back muscles.
The only real problem I have with off center throwing that relates
to equipment is warped bats. I have purchased several of the
waffled bottom plastic bats and in a lot of ten, I usually return one
because it is not flat and seems impossible to center on.
Change bats, and I am fine.
In school, a lot of people made wood bats from plywood and often
drilled the drive holes slightly off center. Throwing was okay but trying =
to
find a center for trimming or decorating was difficult. WE just learned
how to get around it. No pun intended=21
Don & Isao Morrill on mon 31 aug 98
AGary, I dislike mentioning this,(Ha Ha). It is not unknown for teabowl
makers to throw slightly off-centre...presmably as an aesthetic>
improvement. Don M.
Graham Jones on mon 7 sep 98
My wife cmplained that here electric wheel had developed a wobble yesterday.
It is a venco no 3 11" head.
It has a cone drive. I pulled it to pieces and found that the rubber on the
shaft drive wheel was badly worn. Not sure if that was the problem I bought
a bearing kit as well as a spare drive wheel.
I fitted the drive wheel first and it seems to have fixed the problem so I
now have a spare bearing kit.
Graham Jones
Suydney Australia where we can not drink the water without boiling it.
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