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Safety -- Make sure you are safe!

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  #1  
Old 2009-01-07, 7:11pm
IF-Designs's Avatar
IF-Designs IF-Designs is offline
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Default Building your own Kiln & Controller....

Ok so my bf and I are going to attempt to build an annealer and a controller but we are needing a 2nd opinion on stuff to make sure we are getting the right things. We dont really want it to pull more than 10amps. So here is what we are looking at.

For controller we are looking at this
http://cgi.ebay.com/ws/eBayISAPI.dll...m=300284648118

This solid state relay This is one thing we are a bit confused on we dont want to pull more than 10amps but we think if we oversize the relay too much it may not work and im having a really hard time finding anything 15amp or under in a SSR.
http://cgi.ebay.com/ws/eBayISAPI.dll...m=280295350649

Thermacouple similar to this
http://cgi.ebay.com/ws/eBayISAPI.dll...m=250352590244

Thinking abotu this for the controller housing...
http://www.mcmelectronics.com/produc...U-347-/28-8644

Here are the elements we are looking at for the heating part...
http://cgi.ebay.com/ws/eBayISAPI.dll...m=330298862842
http://cgi.ebay.com/ws/eBayISAPI.dll...m=360090676844
http://cgi.ebay.com/Heating-Element-...3A1%7C294%3A50
Pretty much all the other parts we can find here...not sure if we need a wiring socket for the controller or not and not sure what size or type?...

Can anyone help me out here? Are these things going to work ok togethor? I dont want to spend money on stuff to find out its not going to work
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Last edited by IF-Designs; 2009-01-07 at 7:30pm.
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  #2  
Old 2009-01-07, 9:36pm
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Check out these threads. Mark has great info!
http://www.wetcanvas.com/forums/showthread.php?t=162187

http://www.wetcanvas.com/forums/showthread.php?t=126999

http://www.wetcanvas.com/forums/show...ight=stovepipe

If you fgure anything out let me know. I have been dying to build a mailbox kiln. Gotta put it higher on the to do list.
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  #3  
Old 2009-01-07, 10:53pm
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Check that the controller can set to ramp and hold. There are some sold that can only go to a single set tempature.

Check out the links to Marks tutorials...you are pulling more than 10 amps on both of these elements.

http://cgi.ebay.com/ws/eBayISAPI.dll...m=330298862842
14.5 amps @220 volts

http://cgi.ebay.com/Heating-Element-...3A1%7C294%3A50
115 Volts- 14 Amps - 1600 Watts
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  #4  
Old 2009-01-08, 4:31am
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I dont mind so much if the controller is a set point yes it would be nice to have a more programmable one but I have to keep price down a bit and stick to what can be in the budget. Ive been reading the threads by Mark they are just invaluble I just am not sure how to know if what I choose it going to work together properly for what I need to have my kiln not draw more than 10amps.
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  #5  
Old 2009-01-08, 5:12am
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Karin, I know that Don McKinney's toolbox kiln only pulls 4 amps, so it can be done. If you look on his website he has the parts listed and where to buy them. Perhaps that will help. http://www.glasspalette.com/FujiTrou...tingGuide.html
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  #6  
Old 2009-01-08, 7:04am
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Quote:
Originally Posted by IF-Designs View Post
Ok so my bf and I are going to attempt to build an annealer and a controller but we are needing a 2nd opinion on stuff to make sure we are getting the right things. We dont really want it to pull more than 10amps. So here is what we are looking at.

For controller we are looking at this

This solid state relay

Thermacouple similar to this

Thinking abotu this for the controller housing...

Here are the elements we are looking at for the heating part
the controller, not enouugh information. it does not say if it is a relay or SSR output. and the price isn't that good.

the SSR and TC, ok, not great. check out the controllers, SSR's, and TC at this link

http://stores.ebay.com/Tibetwalk-Electronics

if you read my tutorial, you would know that i recommend people use electromechanical relays and the reasons why. SSR's are great as well, but have some issues. you will need to have a large heatsink as well as an aluminum enclosure and possibly a fan to blow on the heat sink.

the 1st element looks good, it is for 240volts, but i would use it at 120v because you do not need that much power. the second element looks good and may fit into a small kiln better than the 1st. the 3rd element is basically heating wire, so it will be up to you to figure out how it will be mounted in the kiln. quartz tubes may work but i cannot say without knowing more about the elements than is in the ad.
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Last edited by laserglass; 2009-01-08 at 7:08am.
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  #7  
Old 2009-01-08, 7:35am
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Thanks Mark! I was looking at the electro relays but am a lil confused on those I can find those in closer amp range that I want I will definately check out Tibetwalk....Thanks!
Karin
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  #8  
Old 2009-01-08, 7:37am
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so if I were to get this type I would have to use a SSR Relay?
http://cgi.ebay.com/PID-Temperature-...742.m153.l1262

This one is considerably more $$ but I cannot tell what type of relay I should use with it.
http://cgi.ebay.com/Temperature-Cont...742.m153.l1262

and then theres the fuji I found too
http://cgi.ebay.com/ws/eBayISAPI.dll...m=320330163120

I just dont know which type of relay to get and where to get a quality one for any of these. I went to some of the websites in the tutorials but I get so darn confused.
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Last edited by IF-Designs; 2009-01-08 at 8:01am.
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  #9  
Old 2009-01-08, 7:59am
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I went with the PXR Fugi controllers.....the one you have here appears to be a set point.

The SSR is a 20amp and may work for a 12-14amp element....not two ~Just one. do some simple math on the relay 25% over element draw.

I could use the second one for my stove at home.... third may work just remember you cannot cut them down to size as it changes things drastically.

M-board,K-brick, and fiberfrax are great insulators........

Hope it works out!


~Oh yeah the thermocouple will not work.
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  #10  
Old 2009-01-08, 8:06am
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Norskiglass Norskiglass is offline
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http://lampworketc.com/forums/showthread.php?t=64292

Scroll down thru the furnace pics......(big box far right w/lid open) there is the annealer I built. ~Keep in mind a few other things such as wiring,wire way box, thermocouple placement,etc...
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  #11  
Old 2009-01-08, 9:53am
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Quote:
Originally Posted by IF-Designs View Post
so if I were to get this type I would have to use a SSR Relay?

This one is considerably more $$ but I cannot tell what type of relay I should use with it.

and then theres the fuji I found too

I just dont know which type of relay to get and where to get a quality one for any of these. I went to some of the websites in the tutorials but I get so darn confused.
the controllers at tibetwalk (the link is posted previously, are all designed to work with SSR's. the new controllers you linked to also seem to be designed for SSR's. if you check it out, the link i supplied offers a bundle of a controller and an SSR for about $50. keep in mind that you need a good heatsink to go with that SSR, and don't buy the TC they offer as it is a POS. duralite sells a 1/8th inch diameter, 6 inch long type K probe with an armored cable for $30. tou need the tip of the TC to be at least 1 inch inside the kiln and mounted away from the elements.

most of the controllers you have linked to do not give the model number. it is a long string of letters and numbers, used to identify they type of inputs and outputs as well as special features. IMHO, i would not buy a controller from ebay or anywhere, that does not give you the total number so you can research what it does.
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  #12  
Old 2011-04-12, 8:21am
Jucole Jucole is offline
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Hi - I recently built a prototype for pottery kiln controller using an embedded controller, I've almost finished, but it wasn't too hard.

http://www.tinypixels.co.uk/projects/kiln/index.htm

Kind Regards

Jules
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  #13  
Old 2011-04-12, 9:30pm
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Yes, the Fuji PXR3 works well as a PID kiln controller. Cost about $69 on Ebay. The SSR is another ten bucks plus a Skutt replacement thermocouple for $14 if your present one is not working.

It takes three wire pairs to use the controller. One pair for 110 VAC, thermocouple and SSR.
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