Jump to content


Arnold Howard

Member Since 26 May 2010
Offline Last Active Oct 26 2016 11:22 AM
-----

Posts I've Made

In Topic: Do You Use Cone Packs In An Electric Kiln?

26 October 2016 - 11:26 AM

I never use cone packs. If there's a problem with the firing, the controller will shut it down. If the thermocouples are out of whack, I'll see it in my glazes and having the cone packs won't matter.

I recommend witness cones in every firing . . . unless you doing routine firings and can tell visually whether the ware was fired properly. If you know what the glaze will look like when over or under fired, you don't need cones.

 

Sincerely,

 

Arnold Howard

Paragon Industries, L.P., Mesquite, Texas USA

[email protected] / www.paragonweb.com


In Topic: Kao Wool Question

01 December 2015 - 01:29 PM

Wrapping the kiln with insulation will cause the stainless steel case to overheat.

 

Arnold Howard

[email protected]


In Topic: Not Being Able To See The Witness Cones

25 November 2015 - 09:15 AM

I recommend green #3 safety glasses (after testing a handful of safety glasses of different shades). Green #3 is dark yet light enough to enable you to see the firing chamber.

 

During a recent test firing, I pointed a bright LED flashlight into a kiln at around 1800F. (Someone else lifted the lid for me.) That flashlight is so bright that the rest of the kiln was dim by comparison. I haven't yet pointed the flashlight into a peephole. (The test kiln in my office is very small and doesn't have a peephole).

 

To get a wide view through the tapered peephole, you have to move your head from side to side. If you need to place the cones close to the peephole, put a bent cone on the shelf and position it where you can see the tip. Use that as a guide in positioning a straight cone. If the straight cone is too low, the tip will disappear when the cone bends.

 

Sincerely,

 

Arnold Howard

Paragon Industries, L.P., Mesquite, Texas USA [email protected] / www.paragonweb.com