Just like the single model published here, but with two chambers.
This is a compressed earth block (CEB) press based on the CINVA model designed in 1950.
It was drawn for 20cm x 14cm x 10cm CEBs.
It can hande earth compression ratios up to 1,6 to 1,0 (by volume).
The compression arm (in blue) is angled (atan(0,5) to ease the block extraction motion. We will see...
Note that this model has not been built yet.
This is a drawing, to scale, that should be functional as all dimensions were calculated for the specifications above.
As soon as a prototype has been built I will correct any dimensions.
In the meantime, feel free to try to build one and let me know. #block #CEB #CINVA #compressed #dual #earth #grassroots_architecture #hut #manual_press #nando