search  current discussion  categories  wheels - misc 

wheel speed !!

updated fri 26 feb 10

 

Elizabeth Priddy on mon 22 feb 10


When I throw production, I throw fast, between 30-45 pots an hour, but that=
means I am reproducing identical forms and working with weighed balls of c=
lay and boards and bats ready. You have to set up your station well to thr=
ow fast enough for production. 1 hour of set up with all your bats, receiv=
ing boards, weighed clay, tools, everything in place...it will make all the=
difference.

When I throw for designing purposes or for fun or for demonstrating, I thro=
w slowly and keep the wheel at very slow speeds.

Even when throwing production, though, the wheel staying at a consistent sp=
eed with strong torque is more important that "fast".

I have noticed that with new students, putting them on a kick wheel first m=
akes them do one step, then stop and kick, then the next step...if they hav=
e an electric wheel. they confuse the fast events happening with quality. =
I don't need speed to do the work, I need to be doing the work.



- ePriddy

Elizabeth Priddy
Beaufort, NC - USA

http://www.elizabethpriddy.com

lili krakowski on mon 22 feb 10


Cheryl!

You've come to the right place!

What do you plan to do with your wheel? Send clay into outer space? =3D
Redecorate the walls? Or make pots?

Most electric wheels are designed by people who think we are going to =3D
compete at Daytona. Now I think there is a reason for strong motors--you =
=3D
say 1 HP?-- for the exceptional case when so much weight is put on the =3D
wheel that the downward pressure would interfere with the spinning.

But--and this matters--were you to throw a big huge monster pot on your =3D
1 HP wheel and GO AT MAXIMUM SPEED you will send the clay flying.

My Brent B (now, I hope repaired) can go real fast....but I run it at no =
=3D
more than 40 revolutions per minute...and for me that is FAST and RARE.

I actually do know how to throw. But started out on a kickwheel and =3D
work at slow speed.=3D20

When teaching I found that moist newbies think speed a good thing. It =3D
is not. Most women, esp. just ruin their wrists trying to control a =3D
rapidly spinning ball of clay. I hav serious carpal problems --the =3D
origin of which I blame on trying to throw caly that was too hard, and =3D
lumps that were too big....

Take a piece of sticky tape and attach it to the rim of your wheelhead. =
=3D
Take a watch with a nice big second hand. Start your wheel and count =3D
how many revolutions you get per minute. NOW SLOW YOUR WHEEL DOWN.

=3D20

Lili Krakowski
Be of good courage

Steve Mills on mon 22 feb 10


On the nail Lili

I run my whisper at the same maximum speed I was able to achieve with my
Leach Treadle Wheel. any faster than that and (for me) clay control
decreases in proportion to speed increase.

I installed a home brewed speed stop on the pedal.

Steve M



On 22 February 2010 15:18, lili krakowski wrote:

> Cheryl!
>
> You've come to the right place!
>
> What do you plan to do with your wheel? Send clay into outer space?
> Redecorate the walls? Or make pots?
>
> Most electric wheels are designed by people who think we are going to
> compete at Daytona. Now I think there is a reason for strong motors--you =
say
> 1 HP?-- for the exceptional case when so much weight is put on the wheel
> that the downward pressure would interfere with the spinning.
>
> But--and this matters--were you to throw a big huge monster pot on your 1
> HP wheel and GO AT MAXIMUM SPEED you will send the clay flying.
>
> My Brent B (now, I hope repaired) can go real fast....but I run it at no
> more than 40 revolutions per minute...and for me that is FAST and RARE.
>
> I actually do know how to throw. But started out on a kickwheel and work
> at slow speed.
>
> When teaching I found that moist newbies think speed a good thing. It is
> not. Most women, esp. just ruin their wrists trying to control a rapidly
> spinning ball of clay. I hav serious carpal problems --the origin of whi=
ch
> I blame on trying to throw caly that was too hard, and lumps that were to=
o
> big....
>
> Take a piece of sticky tape and attach it to the rim of your wheelhead.
> Take a watch with a nice big second hand. Start your wheel and count ho=
w
> many revolutions you get per minute. NOW SLOW YOUR WHEEL DOWN.
>
>
>
> Lili Krakowski
> Be of good courage
>



--
Steve
Bath
UK
www.mudslinger.me.uk

Paul Haigh on wed 24 feb 10


LOL- I like reliable cars, sweet and smart women, orange power tools that n=
ever die, my crazy dogs, and my TS wheel. I bet we'd get along fine anyway =
(I hope that we can agree on good beer) :)

I've used faster wheels, but have not found that the speed does anything fo=
r me. Proper leverage and bracing- I work less and faster than I would with=
a faster wheel.

YMMV, of course.
-pH
http://wileyhill.com

>Date: Tue, 23 Feb 2010 12:25:10 -0800
>From: Dean
>Subject: Wheel Speed

>I like fast cars,=3DA0 loud rock 'n roll,=3DA0 big drops on fast waves, do=
wnhil=3D
>l racing, roller coasters, fast women, and yes, fast wheels.=3DA0 All my w=
hee=3D
>ls are Brents and I crank 'em up.=3DA0 Might not work for everybody.
>Dean

douglas fur on thu 25 feb 10


Lili Krakowski "Be of good courage"
I enjoyed your post about old school potters build our own wheels. I was a=
t
the point of completing a treadle wheel made of this'n'that. "Have a local
blacksmith make a copy of a successful wheel"- weel the local blacksmith
charges $85/hr. with a $200 minimum. So I cobbled together a shaft of pipe
fittings and built a "cabinet" out of scraps of plywood from friends and
neighbors with mixed hardwoods from a local dump bin.

I'm cheating on my goal of not making pots until it's 100%. The speeds I
clocked (counting the tics of a masking tape tab on the wheelhead as it
tapped my finger. tics in 15 sec.x4=3DRPM

- fast as in throwing spouts> 76rpm
- Medium, centering, opening 36-40rpm
- slow 28 and less rpm

As for beginners and wheel speeds fast wheels promote fast movements such a=
s
jerking your hands away only to have your hands whiplash and hit the pot.

As for speed throwing there's a line from* The Anglican Book of Worship *wh=
ich
uses the expression "the quick and the dead". I'd rather make pots that ar=
e
"quick" or "lively" than fast and dead.

DRB

Seattle