Hi guys, i have been following this thread for quite some time now.
Now i'll actively join as i'm planing to make EG cnc machine.
I have found local supplier of quartz sand of different granulation.
All aggregates are 100% washed and flame dried.
For now i have 4 aggregates
quartz sand 1,0-3,0mm 2.2€/25kg
quartz sand 0,9-1,4mm 2.2€/25kg
quartz sand 0,4-0,9mm 2.2€/25kg
quartz sand 0,063-1,0mm 2.2€/25kg
Do i need some with more bigger granules for optimal mix ?
I have also found locally some flours but they are expensive except limestone, but i dont know if that is good or not.
Limestone flour 4,63 € /20kg
Quartz flour 6,83 €/kg
marble flour 3,78 €/kg
Which one of flours is best to use, can i make EG without one?