Seed Eco-Home 3 + Machines

• SEH 2 Review
• SEH 3
• Scaling the Universal Axis
• CNC Torch Table v 21.08
• D3D Universal Quality Control

g

Join Zoom

Seed Eco-Home 2 Review

• Needs seamless install of walls
• Insulation + flexibly vinyl flashing made it hard to see clear location for first story walls
• Poka-yoke is required for alignment of second story walls
• Both first and second story walls are not self-aligning
• Bob Berkebile suggested moving away from T1-11 siding which, lasts only 20 years
• Lifetime of cement board is 50 years and thus qualifies for OSE lifetime design
• board weighs 79 pounds (36 kg)
• cf. OSE Wiki
• However, this requires use of OSB underneath to provide shear
• Adjustment panels were a major pain point

g

Seed Eco-Home 3

• Think DIY Structural Insulated Panels (SIPs): hybrid of stick + SIP
• Self aligning on bottom and top just like SIPs
• See CAD
• See BOM
• Taper insulation:

g

Seed Eco-Home 3

• Think DIY Structural Insulated Panels (SIPs): hybrid of stick + SIP
• Self aligning on bottom and top just like SIPs
• underlying assumption: OSB is pretty uniform
• 2x4’s may be warped -> screwing them together straightens them out

g

Scaling the Universal Axis

• Universal Frame
• Universal Axis
• Universal Controller
• TB6600

​

g

Calibration

OSE Calib File

1. Square in the XY Plane - test print for square?
1. Cube and measure sizes
2. Perpendicular in the Z Direction
3. About overhangs - with 1.2 nozzle, 0.4 layer height
• slow-moving printhead, good cooling

30 degrees should be feasible

g

Print bed

Square calibration shape (maximum size)

1st layer

2nd layer

3rd layer

angle

Calibration - 0.2 layer height

​

• About overhangs - with 1.2 nozzle, 0.2 layer height
• 10-20 degrees should be fesible
• What is the reality? - test the limit...

g