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claude

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  1. I thought I put my question here as the thread title appeared as a good start for several kind of considerations about the machines... just wanted to keep the number of threads slim... claudia
  2. Hi folks, I still have real issues with my VPMSS20 Peter Pugger stainless steel mixer that I bought some months ago. I work with porcelain on the wheel and mostly need it for mixing stiff porcelain clay. It would be great if you could help me with your experience. There are two main problems: - The pug roll ALWAYS has little air bubbles in the first 30 inches, mostly on the outside to 1 inch deep. The really always friendly team of Peter Pugger said the reason is that it's too full loaded so the connection to the vacuum chamber is blocked and this causes air getting into the mixing chamber when I switch from mix to pug. I also see the vacuum fall at that moment when the pugging begins. The manual recommendeds in that case 'stop, let vaccum settle again, mix shorthly and pug again' but that doesn't remove the air bubbles once they got in... I tried several times to load it less full, but then it's too less for the pugging dynamic what causes the machine to empty only half!! There seems to be only a TINY tolerance between too much and too little and not something around 8 lbs as the manual says. I just put two or 3 pounds less and then it doesn't empty and I can start all new, all the mixing again as I have to add more clay and it has all to be mixed again. You can imagine, for a long day of throwing when I need 3 loads, I can prepare for 3 hours that way. - also, the mixing quality to me appears not really so brilliant as it is announced. When centering, the clay is not homogen, even if I mix for 20 minutes! I throw with Limoges porcelain what is normally good for throwing, it comes very soft and I airdry it down to a stiffer state I need for throwing. Then I have to mix it again for homogenity for what I bought the machine after several times communication with the company to make sure I buy the right thing. I had the chance to try the NVAS07 before, the new mixer from shimpo, but it didn't work for me as the motor stopped in the moment when the clay consistency was just 'normal' for smaller vases, it only mixed very soft clay. But the mixing quality to me seemed far better than what comes out of my Peter Pugger. The Shimpo has bigger mixing paddles with several holes in them, through which the clay is pressed what might improve the mixing process significantly. Yesterday, I mixed and de-aired three loads to let them rest for the night and mix them again today. Then the clay is homogen and runs smoothly on the wheel, but it still has the air bubble problem in parts of the roll. And that way it is a very time-consuming method! The good thing is that the motor really doesn't stop even with stiff clay, the Shimpo NVS07 and also the Venco have that problem of a weak motor power, but surely not the Peter Pugger. The promise '5 to 10 min of mixing, just let the vacuum settle and then hit pug' doesn't work for me. after 20 minutes of mixing, it is still not completely homogen. Also, if I only let the vacuum needle settle for a moment and then pug, the pug roll is completely still full of air and definately not de-aired. I wait now 3 minutes with vaccum running until I pug, what then causes water in the vacuum pump filter. I'm somewhat despaired. But maybe I do the mistakes. Would be gorgeous if you have tips for me!! All the best, Claudia
  3. I always used a calendula greasy ointment that my grandma made for years from fresh calendula. This was only matched by St.Johns Wort oil , a classic herbal remedy for dry skin. I put it on my hands in the evening and the next day the dryness is gone. This oil can usually be bought ready for use but I prefer the organic ones. All the best, claude
  4. Dear Mark, I'm in Europe but there is a retailer dealing with Peter Puggers... thanks for your reply! Good to hear you never had Problems with de-airing... Claude
  5. Dear colleagues, I have to make a decision as I could have a Venco Super Twin in a few days here in my studio what would normally take months to be delivered and I have a big order of lots of plates to throw. In my research about pugmills I have come as far as that I think I have to decide between buying a Peter Pugger vpmss20 and a Venco Super Twin, both stainless steel and de-airing. I throw porcelain and run a studio production, means around 2 tons a year, getting more (sorry, I'm not a native speaker)... I'll need it in the first place for replacing the wedging of new porcelain clay as I find this extremely power- and timeconsuming for production. I let the wet material dry a little bit down to have a stiffer clay for throwing thin bigger pots. That means the clay has stiffer parts outside from the drying and softer ones inside even if I dry it slowly under a soft fabric to avoid too fast drying. I hope such a machine could mix and de-air it for having a homogen porcelain body ready for throwing. That's what I intend mainly. To reclaim crap is also an idea but not really important as I can sell trimming crap for a small money to someone who re-uses it for small sculptures. i know in stoneware de-aired clay is a gorgeous thing for throwing, but porcelain is different and it seems to absorb air whenever possible so the vacuum effect might be a problem? What I have heard about the Peter Puggers: Some potters have problems with porcelain coming out with no plasticity. Also heard a rumour that the pugging chamber of the PP is too short for good de-airing. The advantage of PP seems to be that the clay can be stiffened or dried down easily and that any stiffness doesn't seem to be a problem at all as the mill is very strong so it won't stop with stiffer clay. About the Venco: the twin spiral shall have a quite well mixing effect but the de-airing pump shall also not be so good. Another disadvantage of the Venco is that I heard it stands still if the clay is too stiff and you have to open it to pull the clay out before going on with softer clay. I'm afraid I will have spent so much money to have small air bubbles in my fired ware what must be quite horrifying and / or that I have a machine that stops when i put a bit stiffer clay for bigger pots into it. It would be SO GREAT if anyone working with porcelain with these machines could share his/her experiences... thanks so much, claude
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