I just noticed adding the draft to my pattern increased the diameter.
This won't matter for my own use and probably won't really matter if used on the actual grinder but isn't an exact copy of the one I was trying to copy. At over 7 hours of print time I'm not going to remake it.
The height looks pretty close.
I'm still painting the 3d printed pattern and will need to smooth it up before I can try using it to cast my own. I started digging up some boards to build the taller flask to make the sand mold. I have a limited amount of green sand so I don't want to make the box bigger than it needs to be and don't know exactly how I will ram it up yet. I'm guessing the "core" will need to be on the bottom (drag) half of the flask so this could be a bit harder than I first imagined.
This won't matter for my own use and probably won't really matter if used on the actual grinder but isn't an exact copy of the one I was trying to copy. At over 7 hours of print time I'm not going to remake it.
The height looks pretty close.
I'm still painting the 3d printed pattern and will need to smooth it up before I can try using it to cast my own. I started digging up some boards to build the taller flask to make the sand mold. I have a limited amount of green sand so I don't want to make the box bigger than it needs to be and don't know exactly how I will ram it up yet. I'm guessing the "core" will need to be on the bottom (drag) half of the flask so this could be a bit harder than I first imagined.