(I couldn't find a thread on this, but if there is one I missed, please let me know and I'll off this one.) On my "CNC" Cupcake and my MendelMax 1.5 I printed a lot of ABS because, well, because. I sent final prints off to Shapeways for the customer and called it done. Now that my BigBox v1.1 is approaching I have a new client who wants PEEK containers for their chemistry business. (The containers need to hold samples mixed with hexane and do other nasty p-chem and o-chem things then get desiccated with hot air.) I was going to turn the container on a lathe using PEEK rod but that wastes about all of the PEEK. The containers are 7cm diameter, 3cm tall, with a 2mm wall and floor, and printing these should be easy in ABS. What's the big concerns with PEEK? Is there a good faq/forum I should be reading for PEEK printing folk?