Introduction: Lazer Maze - Mounts

Picture of Lazer Maze - Mounts

This is a quick Instructable to show the mounts I used to build this great Instructable LASER Maze 2012 - Halloween Haunted Houseby bkhurt.

The Instructable calls for 4 5mW Green Lasers to beam across your garage or maze space.  On the opposite side are 4 "cds" photo resistor cells.

Step 1: Building the Laser Mount

Picture of Building the Laser Mount

The goal here is to build something fast and cheap to mount the laser.  The laser mount needs to be adjusted up/down and left/right.

I unscrewed the 5mW laser bottom, removed the batteries and soldered on 2 wires.  The negative to the coil spring.   The positive to the case.   The wires were about 1 foot long each.   I stripped about 3/4" off the ends to allow for twisting tot the main feed wires.

I was mounting to a vertical stud piece.  I used 2 blocks of wood with a SINGLE hole drilled in each.  This allowed the adjust as shown in the picture.

I used Velcro to secure the laser to the mount.  I got some vibration and added a piece of tape over the laser to secure it to the wood to reduce vibration when the kids jumped up and down.



Step 2: Building the CDS Photo Resistor Mount

Picture of Building the CDS Photo Resistor Mount


I used a piece of 1 1'4" PVC pipe cut into 4 2" sections.  This is easy to mount and small enough so it wont get whacked by kids.

- Shove a lump of Plumbers Putty (see picture) in the back of a section and pushed the CDS cell through.  Plumbers putty is cheap and is in Home Depot.
- Drill a small hole in the PVC pipe, pass the 1 foot wires through and and solder to the CDS cell.
- Secure the wires at the hole with some epoxy so they wont wiggle.
- Wrap scotch tape over the end of the open hole to act as a diffuser for the laser beam.
- Wrap a loop of electrical tape around the PVC to secure the scotch tape.

Again, as with the laser mount,  get 2 small pieces of wood and drill ONE hole in each as shown in the picture below.  Secure the PVC tube to the wood with Velcro.


Comments

TonyH57 (author)2016-02-16

Is there more in the PDF... cause this seems incomplete ?

skakad1 (author)2015-01-17

i got this error in processing soft. my ardiuno port is com 4 still nt work

how i clear this error?

plz reply fast

amandaghassaei (author)2012-11-08

very cool! what happens when the lasers get set off?

ihart (author)amandaghassaei2012-11-08

The lasers are always on. When you break any one of the laser beams, sirens go off and a fire engine type red light spins around.

See the original Laser Maze instructable by bkhurt for great videos and pictures. I shot my video with an iPhone. IPhones cant shoot video in low light conditions so... I got nothing.

About This Instructable

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Bio: I'm an Electrical Engineer with "engineer disease." I need to always be making, fixing or learning about something.
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