Ghostbusters PKE Meter

by welwell, published

Ghostbusters PKE Meter by welwell Apr 21, 2013
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Ghostbuster's PKE Meter


I made this toy based on the shoe polisher that was used in the movie. It is for my great nephew, who is now a 7 year old full-time ghostbuster.
It is still a work in progress. I added quit a few pictures to show how I did the electronics, but the scope here is just to make the case:

  1. Print one of each file.
  2. connect the bottom handle and bottom base with 7/8" aluminum angle; plastic is not strong enough here; glue and screw.
  3. Consider drilling out the posts and replacing them with 1/4" brass rod (it's what I did because I was afraid the plastic wasn't strong enough after all the wiring.
  4. I used epoxy glue throughout, and 'painted' each part with acetone to make sure nothing delaminated. 4-40 screws to hold the case together.
  5. Electronics are intense, so plan well and use a strong servo. My cheap miniature servo really didn't have enough guts.
  6. Allow about 30 hours for total completion, including electronics....
  7. See downloads for video PKE.MP4
    Who ya gonna call?

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This is a neat take on the PKE!

Hey this is way cool! I am also working on a prop accurate pke meter. RobTFirefly lent me his Iona shoe polisher and I am taking photos and measurements of it.

Do you think you might end up putting a parts list and such for the electronics?

I used a 16f690 PIC microprocessor with Pic Basic Pro softare to program it,, the smallest servo I could find, standard 3mm LEDs, the rectangular leds are from Digikey catalog, pushbuttons and 9V battery clip from All Electronics, and a lot of patience! Wiring needs to be as flexible and small as possible. I used 30 ga hookup wire. The green display was leds on a perfboard with a green and clear mylar(?) plastic screen over it. I didn't have a schematic, but could make one later. The electronics could be done without a microprocessor, but it may take up too much room.

cool thanks, I might have to give it ago. I got a buddy who does PIC programming who owes me a favor

I was looking for images of both the polisher and actual prop, to model in Blender, a few weeks back.
This is great! soon as i resolve my printhead issues, i'll probably print this up for my collection of printed toys.

I actually built one of these 15 years ago with the shoe polisher, so my son still has it, which I used for this pattern. I took a picture, put it in the backgound in Blender and used Bezier curves to model it. The handle is a bit thicker to accomodate the 9v battery; but I wanted the plastic to be toybox sturdy. I'm glad you like it.