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  1. thanx for the replies! I've been using this kiln over the past 2 years - firing about 2 times/week almost every week.... been working great.... Yes, i have checked the firing with witness cones - extensively.... They are bending properly - glazes look good... I'm not trying to troubleshoot any particular problem with the firing of the kiln..... I was just hoping to understand the firing cycle and learn more about it.... i'd like to start expiramenting with changing the cycle. I looked at manual, called duncan and cant find a good resource that goes beyond the.... - first 2 hours of the cycle.... thx.....
  2. i think black clay isnt a possibility for now - due to budget, availablilty w/out shipping, etc. This is for youth student classes... (we are still dramatically hit by the economy here in florida)
  3. I've been bisque firing cone05 for about 1 yr, in a Duncan/Teacher's Plus kiln. It's a modest size (smaller than avg) - 240volts: It is smaller than normal... 17.5 " x 20" (depth) The bisque seems to be firing fine, no problems but..... I'm trying to figure out the firing cycle - on cone 05/automatic mode (their setting): it only seems to take approx 5-7 hours to shut off. --- THIS SEEMS like a very short time and i'm wondering why... Is the bisque really getting fired in a strong way??? - My guess is it is due to the kiln size being smaller than avg.....? Most other kilns i've fired have been larger and take around 10 hrs for a bisque... - The manual (and the Duncan/Paragon cust support) dont have much info... The manual says (in auto mode) - kiln is on low for 2 hours and then will "switch itself to the ceramic mode (bisque-c0ne 05) for remainder of cycle" So, that being said - if it takes 6 hours to fire --> 2 hrs on low then it takes 4 hours to bring up to cone 05... Doesnt that seem short?????? - - Also, In the manual, it says... firing cycles depend (in general) on: thickness of ware :firing kids projects, mostly slab - 1/4 " kiln size: 17.5 x 20 " amt of ware - almost always a "full load" and voltage variations - have been checking on this... not sure how much i have to do this in-depth: as of now: just checked volts w/voltmeter on outlet plug
  4. thanx - this is a good idea. is there a basic test that i can run on a small test tile - that tells me immediately if my glaze runs. My thought is: brush on glaze; mark with a tic where glaze ends; place verticallly and check results. is there another way?
  5. One way to do this is to glaze with black lo-fire and then add details with acrylics - but i dont wannna would like it to be fully fired/can last, etc....
  6. I'm working on a low fire project with black glaze and would like to add details with other colors - on top of the low fire glaze. these details are representational -- no running... Is there a way to glaze the whole thing black with lowfire glazes and then add the colored details on top of the black glaze. Not sure if overglazes would do this - but dont want to buy overglazes. Can i do this with slip or stains. I have added stains with a clear glaze on top of other glazes - but i think the black glaze as a layer wont work... Any thoughts??????
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