Jump to content

David Woodin

Members
  • Content Count

    225
  • Joined

  • Last visited

Posts posted by David Woodin

  1. The Genesis controller has many great features.   My experience with it did not end up good and I returned it and they gave me a full refund.  As Dick White said they give no information as to what  some of there software changes mean to how it will react.  I felt like I was doing there testing in the field for them and that  this should have been done  before it left the factory. I finally gave up when they tried to convince me that the cycling was due to stray coming in on the thermocouple even though I kept telling them the old V6 worked perfectly.  I now have an industrial controller that is 100% better and a setup where I can monitor firing on my computer and  go back and review firings and just measure how long they take to see if there is a change in element s that require  replacing them.  I also changed over to solid state relays, no clicking of relays and a much longer life span on SSR"s with a tighter control.

    David

  2. I bought a Genesis controller as an upgrade to my Bartlett V6-CF.  The first firing with it just did what ever it wanted and overfired everything.  I called Bartlett Co. and their Technician was only  interested in proving their was nothing wrong with the controller, it was my programing.  Finally after firing twice more with just shelves and posts and cones in the kiln I pulled the controller and put the original V6-CF back in and fired a load of pots successfully.   Today I called Bartlett to return the controller, and was put thru to Dave Bartlett, he said a lot of upgrades had been made on the firmware and would I put it back in and he would step me thru it.  This afternoon I called him again and had put it back in.  First I had taken down the information on the controller, He said that was the newest version, and after much talking back and forth of what I was seeing, he said he wanted to check one more thing.  He talked me through how to get to the PID and the setting was at 1 he said change it to 18 and he thought that would solve the problem.   I am now firing the kiln with shelves  and it seems to be following the setpoint like it should.   This PID setting in my manual says don't change without askiing the kiln Mfg. 

    David 

  3. I use containers 1 quart from home depot for the 4 corners.  The individual cups are used yogurt cups about 6 oz.  The test tile, because I am interested in vertical tests are extruded test tiles long enough to make 5 tests per tile times 7 tiles for the 35 grid.  I only use 300 gram batch  for the corners.  The syringe is 60 cc McKesson Syringe without needle order 102-SC60C20.  Each cup has 48 Milli Litres per sample.

    David

  4. The Currie method is great for revealing what other glazes you might have in the grid from a known glaze.  So he takes a known glaze and makes extreme changes in the Alumina/ silica.  But if you want to make a glaze from scratch take a look at Robin Hoppers book "The Ceramic Spectrum"  The information I posted was a method to look at two colorants and actually uses the same % as the Currie grid after you make the 4 corners using a known glaze.  You don't do anything with the alumina or silica.

    David

  5. I usually make a 20 grid but 35 grid would work fine. A = base glaze + 8% Iron Oxide: B same base glaze + 8% Iron Ox.& 10% rutile;

    C same base glaze no colorant: D 10% Rutile.  This gives a line blend from A to C for iron; A to B iron stays at same value but it cross blends with Rutile :C to D line blend for Rutile: This line blend cross blends with iron B to D.  This is impossible to explain but the top row 1 thru 4 Iron is 8%, but 2 to 4 rutile is #2 = 3.33%R + 8% Fe,# 3= 6.67% Rutile + 8% Fe, # 4= 10% Rutile + 8% Fe.  Anyway it is a good method for testing 2 colorants and depending on your base glaze you may get some rutile blue. take a look at www.matrix2000.co.nz

    David

  6. I would be inclined to change out the controller for a Barlett.  The kiln itself will be fine but electronics have changed a lot in 22 years and you may be fighting problems due to drying out of compenents, parts no longer made etc.  Euclids can help with getting you up to speed with a new Barlett and possibilily zone control.

    David

  7. No the fluxes don't have to add up to 100.  You are to take a glaze and leave out the clay and Silica, if it has any, and just put in the flux material even though they may  have some AL203 and SiO2 in them.  Ex: Custer feldspar. The calculation on the web site is going to add clay and silica to the batch.  I usually make test tiles because I want to see what happens on vertical surfaces.

    David 

  8. David what Al/Si limits are you using?

    I use Matrix limits, Insight limits, and Food safe Cone 6, Cone 10 limits.  Insight and Matrix allow for cones other than Cone 6 and Cone 10. I usually fire to cone 7 in the electric kiln and in the gas kiln cone 9.  That way I only need one stoneware clay body.

    David

  9. The timer and relay is supposed to pulse the middle section every 60 seconds.  The elements themselves are never connected directly to the power from the kiln setter.  The elements are controlled by the infinite switches or timer/relays which receive power from the kiln sitter.  You will have to check each infinite switch and the timer/relays.  If any elements are directly wired to the kiln sitter then their is a mistake in the wiring.  Hopefully you can contact someone at Paragon.

    David

  10. Ramp is either time to get from one temperature to another or set as degrees per hour.  You mentioned holding for 30 minutes at top temperature, this would mean you probably fired hotter than Cone 04.  Most bisque is at cone 06.  If you fire sculpture or heavy pieces slow bisque is okay otherwise I would use fast bisque and save 3 hours total time.  The Orton 3000 is a great controller and you should look into making your own programs

    David.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.