Wednesday, February 26, 2025

Main Entrance Rebuild - Part SEVEN

 


Well before LEDs, let's talk motors.  In this blog post, I explained the upper gearing system.  This blog post will discuss how the motor is integrated into the Main Entrance.  In the end I built a motor module.  That is with some surrounding part removal, this section/module that contains the first reduction gears and motor can be removed.


This view shows the pieces.  The worm gear holder will be replaced with the black version, instead of transparent clear.  This implementation keeps everything in place and with some careful work, can be removed as a unit. 

By driving the perpendicular split at the right, the two gears run in the opposite direction.  Thus the let door moves right while the right door moves left when closing.  Then the opposite is true for opening.


 
Here is the final proto.  After the Brick Fest event, I am sure there will be changes, there always is. 

 

 

Tuesday, February 25, 2025

Main Entrance Rebuild - Part SIX

 

Next step is adding the wiring for the LEDs. 


I had previously showed this in the base.  This is where all the wiring will come up for the two sides.

This shows the mostly completed wiring.  I have used this power distribution module to make most of the wire connections.

The main connection is a USB Type-A connector on an 18 gauge wire that connects to the battery.  There is also a Mini USB Type B connector on the module that I use for testing.  I used the modified plate

with pin holes to route the wire around and more importantly to keep it contained when moving, transporting, setup, tear down , etc.

In the blog post Small Detail I showed the final installation of the internal power generators.   Here they are.

On the left side underneath the green, blue, red and orange round tiles is a transparent neon green round 2 x 2 brick.  Inside this brick is a UV LED and a Cool White LED (small SMT LEDs from Amazon).  The UV LED is illuminated with a triangle waveform while the Cool White uses a burst mode waveform.  Contained in the sphere is a RBGW LED module where only the RBG is connected.  This is illuminated with a random PWM pulse for each color.

 
Under the sphere I used a Technic 2 x 4 plate to get the hole I needed to move the wire through.  Under the round brick I had to drill a hole for the wire.


The backing structure for the internal power generators contains the light controller for each generator and small power distribution PCB.  I used a 2 x 1 LED PCB to do this power distribution.   It makes easier to take apart.  You can see the power wire passing through the hole showed in the first set of pictures.  


Once the structure is set in place, I started putting the corner wall panels on.  I had to be careful to run the wires though the small opening that was there. 

Next is to connect up the LEDs.

 





Monday, February 24, 2025

Brick Fest Live - Oklahoma City


 What follows are the pictures we took of the display at this event.


 










Something new was the Flash Mob attacking the Space Outpost.










Finally here is the back side up close.