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Tips, Techniques, and Questions -- Technical questions or tips |
2015-08-26, 7:00am
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Junior Member
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Join Date: Aug 06, 2015
Posts: 2
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Built my Mail box kiln
I finished my Mail box Kiln. I bought a large Rural mail box from menards ~26$ it is BIG, (~24x14x11). I lined the bottom with Insulating Fire Bricks ~35$ and the top with 1.5" frax. I picked up the heating element at a surplus store. I built the controller with a simple PID controller and SSR. the kiln works great!
It will get up to 1050* in 30 minutes, and 1200* in 45 min. the outside is not that hot, 140-160** for the sides and top, and 180*-215* for the front and back. it is also quite cheap to run. i hooked it up to my Kill-A-Watt meter and the ramp up to 1050* is about $0.02, and each hour holding at 1050* is $0.04. so quite a cheap kiln to use. I am very satisfied.
the last step is to hit the frax with some rigidizer tonight.
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2015-08-26, 7:10am
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Marble Lover
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Join Date: Apr 16, 2012
Location: Broken Arrow, OK
Posts: 802
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Way cool. Thanks for sharing.
-BEP
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Brian E. Parker aka BEPNewt
Lifelong glass lover, now getting to work with it. Using a Bravo on an M20 & Natural Gas ( inner ), Tanked O2 & Propane ( outer ).
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2015-08-26, 8:17am
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Junior Member
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Join Date: Jul 08, 2015
Location: Whistler, BC
Posts: 17
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Awesome! Needs a flag thingy you can pop up when it's ready or cooled down
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Brittany
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2015-08-26, 10:31am
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Beadnsprite
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Join Date: Nov 30, 2010
Location: Halifax, NS
Posts: 21
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I bought one of those mailboxes and I've been wanting to make it. The heating element and controller have me stumped. Not sure where to get and what to get. Any help on that info.
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2015-08-26, 11:46am
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Senior Member
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Join Date: Aug 02, 2007
Location: Nahant Ma
Posts: 1,901
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Nice job.
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2015-08-26, 11:58am
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Junior Member
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Join Date: Aug 06, 2015
Posts: 2
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Quote:
Originally Posted by beadnsprite
I bought one of those mailboxes and I've been wanting to make it. The heating element and controller have me stumped. Not sure where to get and what to get. Any help on that info.
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the element i found at a thrift store it is a 240v 5400w element but on 120v it runs at ~1400 watts so that is perfect for my needs. you want to find a 120v coil or even a stove burner as close to 1500 watts as possible.
the controller is just a PID Temp controller and a SSR (solid State relay) i got off of ebay they are very easy to use. and put together.
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2015-08-26, 12:12pm
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I fart diamonds
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Join Date: Jun 14, 2005
Location: Altamonte Springs, FL
Posts: 3,893
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Nice work! I need a kiln with a taller door, so as soon as I find time, I'm building this one:
http://www.instructables.com/id/Homemade-Electric-Kiln/
Need to figure out a guillotine door, though...
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2015-08-26, 12:24pm
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Senior Member
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Join Date: Mar 14, 2015
Location: Moscow, Russia
Posts: 131
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Wow, it's gorgeous, really. And stylish, too.
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2015-08-26, 12:27pm
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Senior Member
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Join Date: Sep 04, 2014
Location: Michigan
Posts: 212
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Really cool!!
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2015-08-26, 2:45pm
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RAH!
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Join Date: Feb 19, 2008
Location: England
Posts: 331
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That looks awesome!
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2015-08-26, 3:43pm
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Phill
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Join Date: Mar 21, 2009
Location: Winnebago, MN
Posts: 2,489
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I picked up one of those wood stove magnetic thermometers to give me some indication about just how hot the out side of mine is. 150 is still hot enough to get my attention.
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