John Post on sat 29 nov 08
I don't have any science lab classes in my background. I am wondering
if a motorized pipette dispenser would work for line blending glazes?
I know there are other ways to do line blends. I am not looking for
50 alternative ways to create a line blend, I am just wondering if a
pipette dispenser would work.
Thanks.
John Post
Sterling Heights, Michigan
:: cone 6 glaze website :: http://www.johnpost.us
:: elementary art website :: http://www.wemakeart.org
Steve Slatin on sun 30 nov 08
Fisher Scientific makes one. I
suspect other companies do as
well. It is absatively kewl.
I suspect it is overkill for
doing a line blend, though you
certainly could try -- and I
guess it'd give you more control
than usual methods. FWIW, I
believe that the difference is
the 'pipette dispenser' is
programmable as to quantity,
where the original motorized
ones still required the user
cue the start and stop.
Remember, though, that like any
pipette experience cleaning time
is an issue. The simplest way
to do a line blend is still to
make two identical volumes of
the 'endpoint' mix and do a
measured mix of the two for
the midpoint, then two measured
mixes of the midpoint and each
of the two endpoints, and so forth.
Using a motorized pipette to add
the whatever allows you to make
one batch of the base, divide it
into equal units, and then add
different quantities of the
whatever into each sample unit.
Steve S
--- On Sun, 11/30/08, Taylor Hendrix wrote:
> Not sure what a motorized pipette dispenser is. Explain.
pdp1@EARTHLINK.NET on sun 30 nov 08
Hi John, all...
You can get various sizes of throw-away plastic Syringes at any Home Medical
Supply retailer...2 cc through flashlight-sized...having cC and mL
graduations on them of course. Usually they prefer to sell by the Case, but
typically they have opened cases from which they will sell individual ones
or small quantities.
They are inexpensive and precise...but unlike their Glass predecessors, they
will get stiff and difficult to plunge after ohhhhhhhh, fourty or fifty
uses.
I have no familiarity with Motorized Pipettes to have any idea...but, for
the price of lunch, you can get a good handfull of various Syringes, and
they do not take up much room.
Phil
l v
----- Original Message -----
From: "John Post"
> Hi Taylor,
>
> The pipette dispenser I am thinking of using has two buttons.
>
> One to draw in the liquid and one to dispense it.
> When I make glaze grids, (Ian Currie style) there is a lot of
> measuring of liquids in amounts from 2ml to 48ml.
> Then the 35 glazes have to be dispensed onto the clay grids.
> I am currently using plastic 60 cc vet syringes for mixing the glazes
> and some eyedroppers for the grid dispensing.
>
> I was thinking the two button motorized pipette might speed things up.
>
> John Post
> Sterling Heights, Michigan
>
> :: cone 6 glaze website :: http://www.johnpost.us
> :: elementary art website :: http://www.wemakeart.org
>
>
>
>
>
>
> On Nov 30, 2008, at 3:10 PM, Taylor Hendrix wrote:
>
>> Not sure what a motorized pipette dispenser is. Explain. I was a lab
>> rat for several years and I don't think I ever used a motorized
>> pipette. I've used mechanical pipettes, graduated pipettes with
>> stopcocks (no laughing), glass pipettes with bulbs, and even used the
>> ol kisser to pipette some, but a mechanical one? Must be a rich lab.
>>
>> I've yet to use my collection of glass pipettes, but they might work.
>> I do know that my 50 and 100 cc (aka mL) vet syringes have worked just
>> fine and they are very easy to read/use/clean. Laboratory pipettes
>> have rather small openings for fluids and may in fact clog under our
>> clay laboratory conditions. Have a go anyway if you have access to
>> one.
>>
>> My opinion is that a set of plastic or glass graduated cylinders and
>> several plastic syringes is all the precision you really need for
>> mixing glazes. Our raw materials are just not that pure and pipettes
>> and such are overkill. Still, if you have them why not try them,
>> right? Right.
>>
>> Happy glazing,
>>
>> Taylor, in Rockport TX
>> wirerabbit1 on Skype (-0500 UTC)
>> http://wirerabbit.blogspot.com
>> http://wirerabbitpots.blogspot.com
>> http://www.flickr.com/photos/wirerabbit/
>>
>>
>>
>> On Sat, Nov 29, 2008 at 8:58 PM, John Post
>> wrote:
>>> I don't have any science lab classes in my background. I am
>>> wondering
>>> if a motorized pipette dispenser would work for line blending glazes?
>> ...
>>
Taylor Hendrix on sun 30 nov 08
Not sure what a motorized pipette dispenser is. Explain. I was a lab
rat for several years and I don't think I ever used a motorized
pipette. I've used mechanical pipettes, graduated pipettes with
stopcocks (no laughing), glass pipettes with bulbs, and even used the
ol kisser to pipette some, but a mechanical one? Must be a rich lab.
I've yet to use my collection of glass pipettes, but they might work.
I do know that my 50 and 100 cc (aka mL) vet syringes have worked just
fine and they are very easy to read/use/clean. Laboratory pipettes
have rather small openings for fluids and may in fact clog under our
clay laboratory conditions. Have a go anyway if you have access to
one.
My opinion is that a set of plastic or glass graduated cylinders and
several plastic syringes is all the precision you really need for
mixing glazes. Our raw materials are just not that pure and pipettes
and such are overkill. Still, if you have them why not try them,
right? Right.
Happy glazing,
Taylor, in Rockport TX
wirerabbit1 on Skype (-0500 UTC)
http://wirerabbit.blogspot.com
http://wirerabbitpots.blogspot.com
http://www.flickr.com/photos/wirerabbit/
On Sat, Nov 29, 2008 at 8:58 PM, John Post wrote:
> I don't have any science lab classes in my background. I am wondering
> if a motorized pipette dispenser would work for line blending glazes?
...
John Post on sun 30 nov 08
Hi Taylor,
The pipette dispenser I am thinking of using has two buttons.
One to draw in the liquid and one to dispense it.
When I make glaze grids, (Ian Currie style) there is a lot of
measuring of liquids in amounts from 2ml to 48ml.
Then the 35 glazes have to be dispensed onto the clay grids.
I am currently using plastic 60 cc vet syringes for mixing the glazes
and some eyedroppers for the grid dispensing.
I was thinking the two button motorized pipette might speed things up.
John Post
Sterling Heights, Michigan
:: cone 6 glaze website :: http://www.johnpost.us
:: elementary art website :: http://www.wemakeart.org
On Nov 30, 2008, at 3:10 PM, Taylor Hendrix wrote:
> Not sure what a motorized pipette dispenser is. Explain. I was a lab
> rat for several years and I don't think I ever used a motorized
> pipette. I've used mechanical pipettes, graduated pipettes with
> stopcocks (no laughing), glass pipettes with bulbs, and even used the
> ol kisser to pipette some, but a mechanical one? Must be a rich lab.
>
> I've yet to use my collection of glass pipettes, but they might work.
> I do know that my 50 and 100 cc (aka mL) vet syringes have worked just
> fine and they are very easy to read/use/clean. Laboratory pipettes
> have rather small openings for fluids and may in fact clog under our
> clay laboratory conditions. Have a go anyway if you have access to
> one.
>
> My opinion is that a set of plastic or glass graduated cylinders and
> several plastic syringes is all the precision you really need for
> mixing glazes. Our raw materials are just not that pure and pipettes
> and such are overkill. Still, if you have them why not try them,
> right? Right.
>
> Happy glazing,
>
> Taylor, in Rockport TX
> wirerabbit1 on Skype (-0500 UTC)
> http://wirerabbit.blogspot.com
> http://wirerabbitpots.blogspot.com
> http://www.flickr.com/photos/wirerabbit/
>
>
>
> On Sat, Nov 29, 2008 at 8:58 PM, John Post
> wrote:
>> I don't have any science lab classes in my background. I am
>> wondering
>> if a motorized pipette dispenser would work for line blending glazes?
> ...
>
David on mon 1 dec 08
A motorized pipette is used in the lab for transferring water &
buffers. They may not work so well with thick solutions like glazes
because the motor is really designed to pull liquids with the
consistency of water into the pipet. Continued use with thick glaze
may burn up the motor prematurely. Plus, as has already been
suggested, it is a bit of overkill for what you want to do.
Follow KISMIF ... Keep It Simple Make It Fun.
David
dberg2@comcast.net
On Nov 29, 2008, at 9:58 PM, John Post wrote:
> I don't have any science lab classes in my background. I am wondering
> if a motorized pipette dispenser would work for line blending glazes?
> I know there are other ways to do line blends. I am not looking for
> 50 alternative ways to create a line blend, I am just wondering if a
> pipette dispenser would work.
>
> Thanks.
> John Post
> Sterling Heights, Michigan
>
> :: cone 6 glaze website :: http://www.johnpost.us
> :: elementary art website :: http://www.wemakeart.org
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