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myrtle

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About myrtle

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  1. Thanks for the scoop on your firing times! Always nice to compare kiln performance with other fellow kiln watchers.
  2. Thanks as always for the good advice you two! The total firing time only took an hour longer than scheduled, I can probably chalk that up to the dense load and using lots of short posts. It looks like my kiln's diagnostic menu will show me the amperage so run that test once I've unloaded the wares.
  3. Hi folks, I'm doing a medium speed glaze firing in my Skutt 1027. This will be its 8th firing, new kiln, new elements. I watch the firings (maybe a bit too closely) and take notes. The medium speed cone 6 firing should take 8.5 hours according to the firing schedule profile spreadsheet I was given by Skutt. My last glaze firing took 10 hours to hit peak temperature. Tonight it seems to be lagging behind from the start. I'm an currently 1.5 hours into the firing and, according to the schedule, it should be at 250 F but instead it is at 160F. Ambient starting room temperature was 70
  4. Sometimes I see bubbles in the bucket but sometimes they seem to just appear on my pot. I'll try the hairspray trick and start taking gravity readings. Thanks for the tips Babs!
  5. I've been having bubbles form on my pots during glaze application as well. Sometimes they seem to heal during the firing, sometimes not. During my last firing I tried a slow cool down from cone 6 to 1400F. This seemed to help but I'd rather eliminate them during application. I usually try to brush the most egregious ones with my finger before firing but that is time consuming and sometimes I brush too much leave bald spots on my pot. I've been bisquing to 05 so I'll try 04 and see if that helps I generally wipe the pots out with a damp sponge to get rid of dust but it sounds like I
  6. I'm also on here scrolling around trying to get more educated about firing schedules. My Skutt has Slow, Medium and Fast settings but doesn't specify bisque or glaze. The manual only shows the firing schedule for each speed at cone 04. Does anyone know where I could get my hand's on a document like this that lists Skutt's firing profiles? They recommend using medium for glaze and slow for bisque but I'm curious to compare the Skutt pre-set schedules and maybe program in the Bartlet fast bisque schedule to reduce my firing time if it differs significantly from the Skutt slow schedule.
  7. I love boring technical stuff! Its so helpful to understand the rational behind the way equipment functions.
  8. That makes perfect sense when I look at the firing schedule in the manual. Thanks for the replies!
  9. I did not add a preheat and I believe it is a single-zone kiln (only one thermocouple)
  10. Hi Folks, Today I'm doing an empty test firing with my kiln. Its a new Skutt 1027 in an unheated shed and it is a chilly morning. Starting temp was 34F and I'm running it on a medium speed program to cone 05. Is it normal for a kiln to drop temperature as the relays cycle on and off? My kiln climbed to 60 then dropped down into the 50s during the time I didn't hear the relays clicking. Once the relays started clicking the temp began climbing again. I know they climb slowly at the start of a firing and I assume that starting in a cold room will make this process slower but I was a b
  11. Hey all, Thanks for all the information and suggestions. You guys got me on the right track and I think I've finally gotten to the bottom of most of my questions! Bill, after a fair bit of digging (and phoning a local electrician ) I finally figured out that my NMD wire has an allowable ampacity of 65amps. The NMD wire has a 90C rating, but in accordance with recently updated Canadian code, it gets de-rated based on the terminal rating on the equipment it is getting connected to. My switch box has a rating of 75C and NMD wire at 75C has an ampacity of 65 (knocked down from 75 amp rati
  12. Hi Neil, You are correct in assuming I'm a novice. I will be having the work checked over to make sure it is all proper before firing. I have been speaking with /emailing Skutt technical support. Here is a copy and paste straight from the tech support email regarding the plug and breaker: "Because of the way the national electrical code is written, if you put the kiln on a 60 amp breaker instead of a 50 amp breaker, you are then required to remove the 50 amp plug on the kiln and either hardwire the kiln power cord to a junction box or disconnect switch, or acquire a special 6
  13. Thanks for all the great info folks. Bill - see attached pic. This is what came with the switch. Can I just use this to ground the switch instead of your method? There is one knock out in the back of the switch, not two. I can use this knock out for the NMD90 #6 Cu (yes this is Loomex) and it will meet spec because the cable will only be travelling through the wall to the sub-panel. And yes, I have two 3/4" connectors for the NMD90 cable - one for the switch, the other for the sub-panel. The switch is less than 6' from kiln - no prob there. My last head scratcher is how
  14. Yes I'm finding this process and the information I'm getting from Skutt support quite confusing and rather conflicting. In spite of the specs calling for a NEMA 6-50 and the 50 amp plug that comes attached to the kilns cord, the skutt tech specifically told me that since I have used the recommended 60 amp breaker, I would need to disconnect the plug that came with the kiln and either hardwire the kiln to a junction box or safety switch or "upgrade" the plug to to a 4 prong 60 amp plug and instal a matching 60amp NEMA receptacle. So, I am going to hardwire it which seems recommended, ho
  15. I'm confident in the cord but the plug that comes attached to it is only 50 amp and I was told by skutt support that if I wanted to plug the kiln into the wall instead of hardwiring, I'd need to upgrade the plug to a 60 amp plug which is industrial and costly. So instead I disconnected the plug in order to hardwire the cord from the kiln into the shutoff switch.
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