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foam trimming chucks

updated sun 27 nov 11

 

BHannis on sun 20 nov 11


Hi

I have a video on U TUBE that shows one of my foam trimming cones
mounted on a bat, this system for me, has worked well for 20 years.
If you wish to looked at it go to " Bryan Hannis Clay foam Cone".
I have many other shapes of chucks and chums that I use and also one
to use on a giffen grip.

Bryan Hannis
Just Earth Pottery
Valemount, BC
Canada

Sojourner Forspam on fri 25 nov 11


Hi, Bryan, I've watched that video many times and wondered about how you
made that trimming cone. In the video you state that you are using
something you bought from an auto parts store - do you know what specific=
=3D

part that was? It looks like some kind of filter but I can't identify it=
=3D
.

I'm in the process of setting up my new wheel myself right now. I have a=
=3D

friend who has a foam bat she made herself using the green stuff that fol=
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ks
in the US seem to commonly use for this purpose, available at JoAnn's fab=
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ric
stores, but she bought the 2" stuff instead of the 1" stuff that is most
often recommended. I used this bat once and found that it was too stiff =
=3D
for
the purpose - I could not press the pot down enough to get a really good
grip on the foam and it would come skittering off. I don't know if that =
=3D
was
due to the thickness of the foam, or because that type of foam just isn't=
=3D

compressible enough for the purpose. I've identified it as a high densit=
=3D
y
foam with a compression rating of 36 and density 1.6.=3D20

The most common compression bracket down from that is 15 (15 lbs per inch=
=3D
to
compress to 3/4 and still spring back). That's probably too squishy.

But there's another, less commonly available level in between (26 lbs per=
=3D
sq
inch) that may work ok. I'm just not sure if I actually need to change t=
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he
rating of the foam, or if getting the same stuff at 1" thick instead of 2=
=3D
"
would solve the problem. Wish I could lay my hands on some samples to tr=
=3D
y out.

It wouldn't be that hard to cut circles of foam out of a 4" thick piece (=
=3D
I
believe that's how tall you said the chuck in the video was), but I'm kin=
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d
of stymied by the whole squishyness thing. I'm just not sure how squishy=
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the foam needs to be and I can't find any local source to go and squeeze =
=3D
the
goods to judge for myself. The stuff I have seen in person is way too fi=
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rm,
it seems to me, but again maybe that would change if I cut a hole out of =
=3D
the
middle as there is in the one in your video.

Anything you could tell me from your experience would be much appreciated=
=3D
.

Soj

On Sun, 20 Nov 2011 11:49:13 -0800, BHannis wrote:

>Hi
>
>I have a video on U TUBE that shows one of my foam trimming cones
>mounted on a bat, this system for me, has worked well for 20 years.
>If you wish to looked at it go to " Bryan Hannis Clay foam Cone".
>I have many other shapes of chucks and chums that I use and also one
>to use on a giffen grip.
>
>Bryan Hannis
>Just Earth Pottery
>Valemount, BC
>Canada