MatthewV

Take it apart, clean it out, find nothing unusual, put it back together, find you have an extra piece or screw, and see if it works again.

are all transparent glazes Celadon? > No, technically Celadon glazes are low-iron glazes which turn green to blue in reduction at high temperatures. But today the word seems to be "any lightly colored mostly transparent glaze". Anyways, fake Celadon glazes still have wonderful texture enhancing qualities that generally sensitive to the thickness of glaze application. Especially on horizontal pieces.

I feel a fair amount of pottery technical knowledge is rather... inbred? Of course, most people who get mechanical engineering degrees don't end up in pottery. If I was currently taking mechanical engineering materials science classes, I am sure I would make or find pottery-specific problems to solve. But today I don't really wish to revisit it and just guess. Incidentally, my ∆6 firing schedule which I arrived at independently finishes 150°C/hr to 1100 100°C/hr to 1220, 5 minute hold down80°C/hr to 960 (ish, I think, I don't really remember) and maybe a 30 minute hold. I haven't

Did you ever get "Materials Science and Engineering: An Introduction 6th Edition"? The used cost for this older edition is... ~$10 on Amazon. I am not sure how it will help you, but I still think it will. I wasn't into pottery when I was taking this class but I recall the book being pretty good.

Australia has a different voltage (and frequency but that shouldn't matter for a motor). I never saw Brent wheels in New Zealand and would not be surprised if they only make a 110-120V model. There should be a plate somewhere on the motor that lists the required inputs and maximum amps and such. I have an Australian (Venco) pugmill. To make it work I needed a voltage converter. I predict you will need one too.

Most of my Brent wheels are raised 4" (4x4) and most of the Shimpo wheels are raised 1.5" (2x4). This has been what is comfortable for the majority of my students. What is comfortable for me: sitting at the wheel (with my left foot on a 3" height from two 2x4s) and my left elbow on my thigh I should be able to put my hand on the wheel head and have my forearm just a little above the whee head. If the forearm is hitting, it will give me rug burn. If I am too high up my wrist will hurt.