book collections email follower instructable user

Multi Purpose Rotary Machine - Mulling, Welding, Pottery, Photography Turntable

FeaturedContest Winner

Step 37: Green Sand Muller #1 - Adding the Bowl

Picture of Green Sand Muller #1 - Adding the Bowl
angle grinding .jpg
double sided tape.jpg
circle grinding.jpg
ready to test.jpg

Just in case you are wondering, "green sand" is a mix of sand, clay, water and secret ingredients, that you use to make moulds for casting molten metal things (you can check out my adventures in aluminium casting on my YouTube channel here: Making, and re-conditioning great green sand is something of an art form and takes a very long time by hand. A mulling machine set on a timer does it for you...

The bowl for the mulling machine is made from a scrap of galvanised sheet metal, I dug out of the ground at my parents farm... I imagined that the sand would quite quickly eat away at the bare plywood, and I needed welding splatter protection anyway....

The circular base was simply drawn out with the compass, roughly cut out with an angle grinder and stuck down to the platter with double sided tape..Once in position I was able to true it up with the flap-disk on the angle grinder as the platter rotated..