Door Knocker/Thumper/Banger powered by Wiper Motor - Halloween Scare by EvolHub 3d model
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Door Knocker/Thumper/Banger powered by Wiper Motor - Halloween Scare by EvolHub

Door Knocker/Thumper/Banger powered by Wiper Motor - Halloween Scare by EvolHub

by Thingiverse
Last crawled date: 3 years ago
**02/02/2019 Added information for control circuit
**If you end up making this project, I would love to see a pic in the 'Post a Make' section! :-)
Homemade Door knocker/thumper/banger using rubber mallet, some 3D printed parts, wood, and a wiper motor. For Halloween Scare!
Video for control circuit:https://youtu.be/YMU_4FIxcbk
Link to UPGRADE models: https://www.thingiverse.com/thing:3102798
UPGRADE video: https://youtu.be/prDvl66kK8A
https://youtu.be/lFoxJc9jLHI
Parts List for Knocker Mechanism:
One Rubber Mallet
One 5/16" x 2.5" smooth screw with thread
One 1/4" x 2" smooth screw with thread
One 5/16" Nylon Lock Nut
One 1/4" Nylon Lock Nut
Four 5/16" Washers
Four 1/4" Washers
3D Printed Parts
Parts List for Circuit:
1x 12v Relay
1x 1N4148 Diode
1x 2N2222A Transistor
1x 1k ohm Resistor
1x HC-SR501 or HC-SR505 PIR Mdule
1x Prototyping board
1x Set of connectors
More details for parts in video

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