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neilestrick

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  1. Like
    neilestrick got a reaction from Piedmont Pottery in Moving a Duncan DK 1029-1 and bringing it back to life   
    Move it in sections, don't try to lift it all at once. Unhook and remove the lid. Stack the sections in the truck, making two stacks if you can. Put foam board underneath each section. The pink house insulation board works well. Set down the wall sections first, with the lid and floor slabs on top (if the floor is a separate piece). Foam board separating everything. Wrap it all up with plastic stretch wrap and secure the load as best you can. I use a cargo tarp and that works really well. If you put straps over the top, put foam board between the straps and the kiln. Don't crank down too tight with straps or you could crack the bricks.
  2. Like
    neilestrick got a reaction from Hulk in Skutt Classic Wheel Noise   
    A cleanup with a commutator stone will probably help a lot. Does the motor have a small access plate on the side?
  3. Like
    neilestrick got a reaction from Callie Beller Diesel in Can you predict the approximate drop/hold temperature in a drop and hold firing from the chemistry of a glaze?   
    I agree regarding the firing schedule. A shorter firing with holds in the proper places could cuts hours off the firing time, and probably reduce firing costs as well. The slow creep to 300F is totally unnecessary, especially if your work is dry. Just run it up to 200F or 220F, hold as long as needed to make sure everything is dry, then go for it. Also, that first ramp  can be a lot faster than 60F/hr, like 150F/hr will work just fine. There's no reason to take 2 hours to get to the preheat temp, because the hold is where you're really drying things out. 
  4. Like
    neilestrick got a reaction from MKG001 in Suggestions for dark Brown/Black clay Cone 6 body   
    All dark brown/black bodies do odd things with glazes. You have to do a lot of testing to find glazes that work well with them. Those that do can be really striking, though, especially if you leave areas of the clay body visible. My students use a fair amount of Standard 266, and it's a wonderful body to work with. Has a great feel. Don't go past cone 5 with it, though, or you risk bloating.
  5. Like
    neilestrick reacted to Dick White in Interesting Cooling Cycle Info   
    Ok, now download the firing log and feed that sweet thang into @jay_klay_studio's graphing program to visually see the tracks of the 3 sections. And if you really want to have some fun, add another 9999 drop all the way down to 100 after your regularly programmed cool to log how looooonnnggggg it takes for the last several hundred degrees. Several times over the years I've printed the extended graph of a few kilns as a teachable moment for the students of the virtue of patience, i.e., "Can I get my piece tomorrow?" "No, next Friday."
  6. Like
    neilestrick got a reaction from Hulk in Moving a Duncan DK 1029-1 and bringing it back to life   
    Move it in sections, don't try to lift it all at once. Unhook and remove the lid. Stack the sections in the truck, making two stacks if you can. Put foam board underneath each section. The pink house insulation board works well. Set down the wall sections first, with the lid and floor slabs on top (if the floor is a separate piece). Foam board separating everything. Wrap it all up with plastic stretch wrap and secure the load as best you can. I use a cargo tarp and that works really well. If you put straps over the top, put foam board between the straps and the kiln. Don't crank down too tight with straps or you could crack the bricks.
  7. Like
    neilestrick got a reaction from Hulk in Soda firing in ceramic fibre kiln?   
    Those coatings may be beneficial in a typical reduction firing because they harden the surface of the fiber and make it more durable, but in something as corrosive as soda or salt it won't be able to protect it enough. The atmosphere is just too corrosive.
  8. Like
    neilestrick got a reaction from High Bridge Pottery in Interesting Cooling Cycle Info   
    I usually fire my kilns at night so I don't really see what's happening with actual temps in the kiln, but today I started it up in the morning and was in the studio in the evening and got to see exactly what was happening during the cooling cycle. I do a slightly-slow cooling cycle to even out the results in my 3 kilns because they all cool at drastically different rates due to their sizes. I do a drop from the peak down to 2000F, then cool at 175F/hr down to 1500F. This gives me identical results from all 3 of my kilns. This firing I'm talking about here is in my 10 cubic foot L&L EQ2827-3, which has 3 zones, and was packed very tight in the middle. I was surprised at just how much slower the middle cools compared to the top and bottom. This photo shows how it's going part way through the initial drop from peak temp to 2000F:

    As you can see, the middle and the top are nowhere close to each other. In a normal firing segment, a 73 degree difference would stop the firing with an error code. So why isn't it doing that here? It's because the cooling rate is set at 9999, or full speed. Any time you use 9999, whether it's climbing or dropping, the controller lets the kiln do its thing and doesn't care if the sections aren't even. Firing up or down at 9999 is the fastest, but you sacrifice evenness. As the temp continues to drop, we see this:

    Here you can see that the top section (TC1) has started firing again. The set point for this segment was 2000F, at which point it should start cooling at 175F/hr, yet the top section passed that by about 20 degrees before the relay kicked on and the controller stopped the drop. Why did it let it get so far below the set point? Because it's averaging the 3 zones. Once the average of the 3 zones hits the set point it will start to fire each section again as needed to match the set point.
    I get a lot of questions from customers about error codes and cooling cycles. The biggest problem is that the kiln can't always keep up with the programmed cooling rate. There are a number of firing schedules out there on the internet that people are trying that use a rate of 600F/hr or more for the fast drop portion of the cooling cycle, and many kilns simply cannot cool that fast, especially the middle section. When you have a specific rate programmed, the controller will send out an error code if the kiln can't keep up with that rate. So if you want a really fast drop you should use 9999F/hr, not a specific rate. For most people doing slow cooling with cone 6 work it won't matter if the sections are not totally even during the drop. If you do need more precision, like if you're firing crystalline work and it's important that you don't overshoot any target temps, then you'll want to put in a slower drop rate that the kiln can actually keep up with, and the controller will keep the sections even and not overshoot set points.
  9. Like
    neilestrick got a reaction from Kelly in AK in Total Kiln Fail   
    That's a cone 05, not 5. That would explain why the cone 5 glazes didn't melt.
  10. Like
    neilestrick got a reaction from GEP in Interesting Cooling Cycle Info   
    I usually fire my kilns at night so I don't really see what's happening with actual temps in the kiln, but today I started it up in the morning and was in the studio in the evening and got to see exactly what was happening during the cooling cycle. I do a slightly-slow cooling cycle to even out the results in my 3 kilns because they all cool at drastically different rates due to their sizes. I do a drop from the peak down to 2000F, then cool at 175F/hr down to 1500F. This gives me identical results from all 3 of my kilns. This firing I'm talking about here is in my 10 cubic foot L&L EQ2827-3, which has 3 zones, and was packed very tight in the middle. I was surprised at just how much slower the middle cools compared to the top and bottom. This photo shows how it's going part way through the initial drop from peak temp to 2000F:

    As you can see, the middle and the top are nowhere close to each other. In a normal firing segment, a 73 degree difference would stop the firing with an error code. So why isn't it doing that here? It's because the cooling rate is set at 9999, or full speed. Any time you use 9999, whether it's climbing or dropping, the controller lets the kiln do its thing and doesn't care if the sections aren't even. Firing up or down at 9999 is the fastest, but you sacrifice evenness. As the temp continues to drop, we see this:

    Here you can see that the top section (TC1) has started firing again. The set point for this segment was 2000F, at which point it should start cooling at 175F/hr, yet the top section passed that by about 20 degrees before the relay kicked on and the controller stopped the drop. Why did it let it get so far below the set point? Because it's averaging the 3 zones. Once the average of the 3 zones hits the set point it will start to fire each section again as needed to match the set point.
    I get a lot of questions from customers about error codes and cooling cycles. The biggest problem is that the kiln can't always keep up with the programmed cooling rate. There are a number of firing schedules out there on the internet that people are trying that use a rate of 600F/hr or more for the fast drop portion of the cooling cycle, and many kilns simply cannot cool that fast, especially the middle section. When you have a specific rate programmed, the controller will send out an error code if the kiln can't keep up with that rate. So if you want a really fast drop you should use 9999F/hr, not a specific rate. For most people doing slow cooling with cone 6 work it won't matter if the sections are not totally even during the drop. If you do need more precision, like if you're firing crystalline work and it's important that you don't overshoot any target temps, then you'll want to put in a slower drop rate that the kiln can actually keep up with, and the controller will keep the sections even and not overshoot set points.
  11. Like
    neilestrick got a reaction from Babs in Total Kiln Fail   
    That's a cone 05, not 5. That would explain why the cone 5 glazes didn't melt.
  12. Like
    neilestrick got a reaction from PeterH in Total Kiln Fail   
    What color is the cone?
  13. Like
    neilestrick got a reaction from Kelly in AK in Interesting Cooling Cycle Info   
    I usually fire my kilns at night so I don't really see what's happening with actual temps in the kiln, but today I started it up in the morning and was in the studio in the evening and got to see exactly what was happening during the cooling cycle. I do a slightly-slow cooling cycle to even out the results in my 3 kilns because they all cool at drastically different rates due to their sizes. I do a drop from the peak down to 2000F, then cool at 175F/hr down to 1500F. This gives me identical results from all 3 of my kilns. This firing I'm talking about here is in my 10 cubic foot L&L EQ2827-3, which has 3 zones, and was packed very tight in the middle. I was surprised at just how much slower the middle cools compared to the top and bottom. This photo shows how it's going part way through the initial drop from peak temp to 2000F:

    As you can see, the middle and the top are nowhere close to each other. In a normal firing segment, a 73 degree difference would stop the firing with an error code. So why isn't it doing that here? It's because the cooling rate is set at 9999, or full speed. Any time you use 9999, whether it's climbing or dropping, the controller lets the kiln do its thing and doesn't care if the sections aren't even. Firing up or down at 9999 is the fastest, but you sacrifice evenness. As the temp continues to drop, we see this:

    Here you can see that the top section (TC1) has started firing again. The set point for this segment was 2000F, at which point it should start cooling at 175F/hr, yet the top section passed that by about 20 degrees before the relay kicked on and the controller stopped the drop. Why did it let it get so far below the set point? Because it's averaging the 3 zones. Once the average of the 3 zones hits the set point it will start to fire each section again as needed to match the set point.
    I get a lot of questions from customers about error codes and cooling cycles. The biggest problem is that the kiln can't always keep up with the programmed cooling rate. There are a number of firing schedules out there on the internet that people are trying that use a rate of 600F/hr or more for the fast drop portion of the cooling cycle, and many kilns simply cannot cool that fast, especially the middle section. When you have a specific rate programmed, the controller will send out an error code if the kiln can't keep up with that rate. So if you want a really fast drop you should use 9999F/hr, not a specific rate. For most people doing slow cooling with cone 6 work it won't matter if the sections are not totally even during the drop. If you do need more precision, like if you're firing crystalline work and it's important that you don't overshoot any target temps, then you'll want to put in a slower drop rate that the kiln can actually keep up with, and the controller will keep the sections even and not overshoot set points.
  14. Like
    neilestrick got a reaction from Roberta12 in Total Kiln Fail   
    That's a cone 05, not 5. That would explain why the cone 5 glazes didn't melt.
  15. Like
    neilestrick got a reaction from Pres in Total Kiln Fail   
    What color is the cone?
  16. Like
    neilestrick got a reaction from Pres in Total Kiln Fail   
    That's a cone 05, not 5. That would explain why the cone 5 glazes didn't melt.
  17. Like
    neilestrick got a reaction from Rae Reich in Interesting Cooling Cycle Info   
    I usually fire my kilns at night so I don't really see what's happening with actual temps in the kiln, but today I started it up in the morning and was in the studio in the evening and got to see exactly what was happening during the cooling cycle. I do a slightly-slow cooling cycle to even out the results in my 3 kilns because they all cool at drastically different rates due to their sizes. I do a drop from the peak down to 2000F, then cool at 175F/hr down to 1500F. This gives me identical results from all 3 of my kilns. This firing I'm talking about here is in my 10 cubic foot L&L EQ2827-3, which has 3 zones, and was packed very tight in the middle. I was surprised at just how much slower the middle cools compared to the top and bottom. This photo shows how it's going part way through the initial drop from peak temp to 2000F:

    As you can see, the middle and the top are nowhere close to each other. In a normal firing segment, a 73 degree difference would stop the firing with an error code. So why isn't it doing that here? It's because the cooling rate is set at 9999, or full speed. Any time you use 9999, whether it's climbing or dropping, the controller lets the kiln do its thing and doesn't care if the sections aren't even. Firing up or down at 9999 is the fastest, but you sacrifice evenness. As the temp continues to drop, we see this:

    Here you can see that the top section (TC1) has started firing again. The set point for this segment was 2000F, at which point it should start cooling at 175F/hr, yet the top section passed that by about 20 degrees before the relay kicked on and the controller stopped the drop. Why did it let it get so far below the set point? Because it's averaging the 3 zones. Once the average of the 3 zones hits the set point it will start to fire each section again as needed to match the set point.
    I get a lot of questions from customers about error codes and cooling cycles. The biggest problem is that the kiln can't always keep up with the programmed cooling rate. There are a number of firing schedules out there on the internet that people are trying that use a rate of 600F/hr or more for the fast drop portion of the cooling cycle, and many kilns simply cannot cool that fast, especially the middle section. When you have a specific rate programmed, the controller will send out an error code if the kiln can't keep up with that rate. So if you want a really fast drop you should use 9999F/hr, not a specific rate. For most people doing slow cooling with cone 6 work it won't matter if the sections are not totally even during the drop. If you do need more precision, like if you're firing crystalline work and it's important that you don't overshoot any target temps, then you'll want to put in a slower drop rate that the kiln can actually keep up with, and the controller will keep the sections even and not overshoot set points.
  18. Like
    neilestrick got a reaction from Pres in Glaze travel   
    They would probably be okay, but any time you shut down a glaze before it's gone through its complete melting cycle there's a chance of something going wrong like crawling. It would also depend totally on the glaze formula as to just how much things would harden up at low temps. I would just carefully wrap them in something soft and pack them so they don't move and rub. If you're using brushing glazes they tend to be pretty durable before firing anyway.
  19. Like
    neilestrick got a reaction from Hulk in Suggestions for dark Brown/Black clay Cone 6 body   
    All dark brown/black bodies do odd things with glazes. You have to do a lot of testing to find glazes that work well with them. Those that do can be really striking, though, especially if you leave areas of the clay body visible. My students use a fair amount of Standard 266, and it's a wonderful body to work with. Has a great feel. Don't go past cone 5 with it, though, or you risk bloating.
  20. Like
    neilestrick got a reaction from Min in ocarina technical support   
    The wedge has to split the air, so the alignment of the mouthpiece and the tip of the wedge is critical. Adjusting the wedge up or down usually solves the problem. The width of your mouthpiece slot may be a problem, since the slot appears to be wider than the wedge hole. Could be a lot of the air is just going into the cavity without ever touching the wedge. I used to do a lot of whistles with my kids classes, and we just used a sharpened popsicle stick to make both the mouthpiece slot and the wedge hole, so everything was the same width. Beyond getting it to whistle, I cannot offer any help with actually tuning an ocarina. I've only ever made whistles.
  21. Like
    neilestrick got a reaction from cmeiselman in ocarina technical support   
    The wedge has to split the air, so the alignment of the mouthpiece and the tip of the wedge is critical. Adjusting the wedge up or down usually solves the problem. The width of your mouthpiece slot may be a problem, since the slot appears to be wider than the wedge hole. Could be a lot of the air is just going into the cavity without ever touching the wedge. I used to do a lot of whistles with my kids classes, and we just used a sharpened popsicle stick to make both the mouthpiece slot and the wedge hole, so everything was the same width. Beyond getting it to whistle, I cannot offer any help with actually tuning an ocarina. I've only ever made whistles.
  22. Like
    neilestrick got a reaction from alaphair in Skutt element feeder wires   
    @alaphair The 500C wire will work, assuming the listing is legit and that's what you'll actually get. It's one of those random Chinese brands which sometimes have iffy quality. It's a plenty high temp rating, though. SRML wire is pretty standard stuff for most kilns, so look at that, too. You'll need 12 gauge wire. Regular house wire is not appropriate for this application, it must be high temp wire.
    Is the existing short wire already connected to the element with the crimp barrel connector?
    The barrel connector at the element has to be a high temp connector. The slip on terminal at the other end of the wire can be a standard connector.
  23. Like
    neilestrick got a reaction from Jovelle in Ceramic Arts Studio Supplies up for sale, where an I go the post the studio itmes??   
    You can post them right here.
  24. Like
    neilestrick got a reaction from Pres in Mystery Glaze Defect! Help Please.   
    I think it's probably an application issue. How long are you waiting between applying the two glazes? My guess is that the inside is still too wet when you apply the second glaze, and it's failing to get good adhesion, which is causing the crawling. I imagine the ash glaze takes forever to dry?
  25. Like
    neilestrick got a reaction from PeterH in Amaco Palladium glaze   
    I fire to cone 6 in my studio, and I have not seen Palladium look like any of those 3 tiles. When thin it goes green, not lighter metallic.  When thick enough to go metallic it runs off the pot. I'm not willing to change firing schedules to satisfy one glaze, so my students won't touch it any more because it has been nearly impossible for them to use successfully.
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