Ketcher Fan CAD

[Louis Luu]

[Louis Luu]

[Louis Luu]

[Louis Luu]

[Louis Luu]

[Louis Luu]

Rotor is done.

[Louis Luu]

Housing for the stem.  I designed it so the fan can be hung upside down.  The commutator will be customized with holes for the wires to run from the shaft.  Draft.

 

[Louis Luu]

The original drawing shows the shaft held down with 2 side screws....very dangerous.  I'm opting for two thrust bearings on the sides to hold the shaft into position with enough clearance so that it can move freely within the housing.  This is just a draft.  I sourced the thrust bearings and bushings for the motor.

 

[Louis Luu]

I will most likely get rid of the indent on the shaft as this serves no purpose.  The housing will need to be embellished with decorative reliefs.

[Louis Luu]

Here is the base section.  The two halves will be screwed together.  The inside will house two thrust bearings on either side allowing the fan to hang upside down without falling out.  It is tapered with a slight slope.

Edited April 27, 2023 by Louis Luu

[Paul Pierson]

Amazing!!!  This is such an amazing project.  And reading Jim Kovars insights  which are so far above my understanding was a delight.  And Anthony’s insights were critical imho.

Kudos to all involved. 

[Louis Luu]

[Louis Luu]

Finally got everything done.  Brush assembly for the base.

[Louis Luu]

[Louis Luu]

Brush assembly for motor.

[Louis Luu]

[Louis Luu]

[Louis Luu]

[Louis Luu]

[Paul Michael]

On 4/13/2023 at 11:16 PM, Jim Kovar said:

Wrong!  Rectified DC, which I assume you'll using, whether half-wave or full still has a major AC component (ripple).

Ripple in my circuits
When there is no switches thrown
Nor caps to blow . . .

[Steve H Jordan]

So Louis - how is this progressing ??

Another amazing project !!

[Louis Luu]

I have not gotten out my winder yet.  Busy with work.