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by Terry Gallentine
Wed Jul 10, 2019 11:34 am
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 1081

Re: SSR question

Thanks Bert. Are your relays mounted away from the kiln? I plan on isolating them from the kiln so the ambient temp will not be more than room temp along with using heat sinks. The other question that I have is about the goo. Isn't the goo for ssr's designed to transmit temperature rather than insul...
by Terry Gallentine
Mon Jun 17, 2019 11:08 am
Forum: Techniques and Tools
Topic: Mica in Casting Mold
Replies: 1
Views: 137

Mica in Casting Mold

Has anyone out there tried putting a thin coating of mica on the surfaces of a casting mold for a pot casting? Mainly I am curious as to whether the mica will move with the flowing glass or will it form a fairly uniform outer coating.
by Terry Gallentine
Tue May 14, 2019 2:17 pm
Forum: Newcomer Forum
Topic: enamel suggestions
Replies: 5
Views: 455

Re: enamel suggestions

I have done work very similar to wet on wet watercolor by sandblasting the glass first for tooth. Then load the sandblasted glass with water and start to paint on the enamels. The flow that I got was very similar to watercolor washes.
by Terry Gallentine
Fri Apr 26, 2019 11:58 am
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 1164

Re: kiln controller question

Thanks again Bert.
by Terry Gallentine
Fri Apr 26, 2019 11:56 am
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 1081

Re: SSR question

Thanks Bert. I am going with a single zone because I tested the different outer zones with a temp gun and have found them not to vary much from each other or the center. I built the kiln with a very even separation of elements in the ceiling and heavy insulation. It seems to be pretty consistent. Th...
by Terry Gallentine
Thu Apr 25, 2019 10:27 pm
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 1164

Re: kiln controller question

Thanks Bert, I think that I am going to wire a single female to the controller and switch out thermocouple lines when I need to. I am going to use a low voltage toggles to switch signal voltage lines but I would be worried about doing the same thing with the thermocouple lines where current accuracy...
by Terry Gallentine
Sun Apr 14, 2019 6:27 pm
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 1164

Re: kiln controller question

Thanks Kevin. That is good information that I will use when I set up my thermocouples.
by Terry Gallentine
Sun Apr 14, 2019 6:25 pm
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 1081

Re: SSR question

Thanks Baxsie. I appreciate the help.
by Terry Gallentine
Sat Apr 13, 2019 12:22 am
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 1081

Re: SSR question

Thanks for the information. I was probably going on outdated information on the failure potential of ssr's. I had a friend have a relay in his controller fail many years ago. The kiln was white hot by the time he checked it. It kind of spooked me.
by Terry Gallentine
Sat Apr 13, 2019 12:18 am
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 1164

Re: kiln controller question

I have already gotten the type K connectors and type K extension wire. I am going to have a single length from the thermocouple to the controller. I am going to run some tests on a 25' run to make sure that the thermocouple is reading the same as with a much smaller run (5').
by Terry Gallentine
Fri Apr 12, 2019 7:09 pm
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 1081

Re: SSR question

Thanks for the information on the ssr's. I was already planning on using good heatsinks with the ssr's and setting them away from the kilns to minimize ambient temperature. What I was thinking about doing to minimize the failure of the ssr was to use separate ssr's on each of the hot legs of the 240...
by Terry Gallentine
Fri Apr 05, 2019 4:00 pm
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 1081

Re: SSR question

I just asked because I have 40 amp relays already. I will look for 50 amp relays and see what I can find. I have always considered redundant relays (relays on both lines) to be the way that I would want to wire a kiln, in case one of the relays crapped out in a closed circuit position. I am wiring t...
by Terry Gallentine
Fri Apr 05, 2019 12:51 pm
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 1081

SSR question

I built a bell kiln with 4 elements (240v). Each element has a load of approximately 9 amps. I ran wire to the kiln that took into consideration the standard safety margin for amp capacity. In other words, the wire handles 50 amps and the kiln actually has a load of 36 amps. The question that I have...
by Terry Gallentine
Thu Mar 28, 2019 6:54 pm
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 1164

Re: kiln controller question

Thanks everyone. I think that it is time to do some simple testing to see if the longer wires to the thermocouple maintain the same temp readings as the shorter wires.
by Terry Gallentine
Thu Mar 28, 2019 12:36 pm
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 1164

Re: kiln controller question

Thanks again Brad. I was more concerned about the length of the wire leading to the thermocouple than the actual length of the thermocouple. The article that you sent me seems to suggest that the length of the wire shouldn't be much of a problem if it is less than 150' or so. I am thinking about cen...
by Terry Gallentine
Thu Mar 28, 2019 11:31 am
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 1164

Re: kiln controller question

Thanks Brad. Do you have any idea of how long a thermocouple lead can be before you lose accuracy on the temperature?
by Terry Gallentine
Thu Mar 28, 2019 8:48 am
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 1164

kiln controller question

I have two kilns which I seldom use at the same time. I would like to build ssr boxes on the wall by each kiln and then use a portable controller made with an RTC-1000 (containing low voltage receptacles and plugs for signal voltage, thermocouple and a separate power source). Does anyone have any ex...
by Terry Gallentine
Wed Jan 23, 2019 6:04 pm
Forum: Techniques and Tools
Topic: irritating news
Replies: 11
Views: 2606

Re: irritating news

I am glad that you are back in the glass Bert. I don't have any hip problems but I have started using a lot more winches and good old Egyptian engineering to get things into the kiln. As far as the Ferro thing, it seems like everything is going south. I too have back engineered some of my mediums to...
by Terry Gallentine
Sat Aug 18, 2018 11:22 am
Forum: Techniques and Tools
Topic: Pottery Kiln Wash?
Replies: 4
Views: 1765

Re: Pottery Kiln Wash?

I use 60% alumina hydrate and 40% calcined kaolin. I think that the calcined kaolin is a little looser than the EPK.
by Terry Gallentine
Fri Jul 06, 2018 12:17 pm
Forum: Newcomer Forum
Topic: is spray A dangerous?
Replies: 12
Views: 3720

Re: is spray A dangerous?

It is a good idea for anybody who works with glass to check into the facts about lead poisoning. I contacted my state occupational health agency many years ago about it. In some ways, it can be less dangerous than you think and in some ways it can be very dangerous. When working with lead based flux...

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