New Official ATOT Nef Thread II

[zzuupp]

nef

 

[zzuupp]

ned

 

[MotF Bane]

Nef.

 

[MotF Bane]

Working on an improved blade shape.

 

[MotF Bane]

I figure the center of mass MUST be centerline to the mount point, and should be equidistant between hub and edge.

 

[moshquerade]

such a lie, being hung over and saying we will never drink again.

 

[MotF Bane]

Nef.

 

[MotF Bane]

such a lie, being hung over and saying we will never drink again.

Poor mosh.

 

[MotF Bane]

Nef.

 

[MotF Bane]

Bic is having some serious quality control issues.

 

[MotF Bane]

Fucking Chinese made crap.

 

[eldorado99]

ned

 

[eldorado99]

ned.

 

[MotF Bane]

Nef.

 

[zzuupp]

nef

 

[zzuupp]

ned

 

[MotF Bane]

Considering simplifying the blade design to something closer to rectangular shapes.

 

[MotF Bane]

Hub radius is more than 1 3/8", less than 1 1/2", closer to the lower figure. I'm using 1.38" as the assumed value, largely for ease of calculations.

 

[MotF Bane]

Right, I should be able to calculate arc without finding a special formula for it.

 

[zzuupp]

nef

 

[MotF Bane]

Okay, 7.1" blade length from center of mounting point to outermost tip point.

The new blade shape is... well, 45 degree angles on the furtherest triangle. At the base corners of such triangles, it will be at its widest point.

 

[MotF Bane]

Then it'll narrow down towards the hub.

 

[MotF Bane]

50% of the hubs circumference should be covered by the fan blades. I need to figure out how to secure the blades, since the thick heavy cardboard is unlikely to require wire or plastic supports.

 

[MotF Bane]

I think I'll end up cutting 1" grooves into the hub material, which will allow the end of the blades to be inserted with superglue and hot glue and wood glue and whatever.

 

[MotF Bane]

Nef.