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I am looking to cast my own, sorry for the confusion.
I am curious, because I have been turning slimline pens, and it seems very wasteful to turn a 3/4" blank all the way down to those dimensions. Would there be any problems with making the blank that small? I understand that drilling becomes slightly more difficult and it may take a little longer to cure (without adjusting the MEKP).
Are you going to do it or are you looking for someone else to do it??? If you are doing it go ahead. you don't need anyone's approval. If you are looking for someone who does it I think most will make the 3/4" at least because it appeals to more of the mass and is more economical for them. The amount of resin saved is minimal at best. As far as adjusting Mekp, it goes by ounces of resin used not size of blank. Good luck. Have a great day.
I am surely not looking for approval, only the wisdom of those that have come before me. I was only asking if anyone had unforeseen issues with this. If you reduce the diameter of the blank from 3/4 to 1/2, it would cut the amount of resin in half, plus some, that is if my math is correct. It was my understanding that the MEKP, sets off a chemical reaction, which induces heat into the material, causing a cure, and the smaller the object being cast, the less heat it would retain in the process. I have experienced this, when casting bottle stopper blanks, but I may be all wrong, I am pretty new to this.