Embedded Files
Design Proposal
Design Proposal
The plan for building and testing, with redesigns along the way.
Subsystems:
Subsystems:
Different pieces of the machine, shown separately to give a sense of how it works.
Different pieces of the machine, shown separately to give a sense of how it works.
Hopper & Coin Righting System
Hopper & Coin Righting System
This is the place for the coins to be placed, and moved into the coin righting system, a piece that orients the coins in the right direction.
PXL_20221010_234629570.movDemonstration of Subsystem:
Demonstration of Subsystem:
Uses an unbalanced motor in order to vibrate coins down the hopper and on to the orientation chute.
Change to the system:
Change to the system:
Made the orientation chute steeper for coins to roll down easier.
Test Results:
Test Results:
*Highlighted row is video shown above*
Coin Sorting Chute
Coin Sorting Chute
Subsystem that sorts the coins by size.
Alternative View of Chute:
Alternative View of Chute:
This shows where surface the coins roll down, notice the thin piece of paper preventing all of the coins from falling into the same slot.
PXL_20221011_233257132.mp4Demonstration of Chute:
Demonstration of Chute:
The correct coins fall into the right holes while moving down the chute.
Test Results:
Test Results:
*Highlighted row is video shown above*
Coin Collection Area:
Coin Collection Area:
This is the place where the coins are collected after being sorted.
PXL_20221012_224834468.mp4Video of Collection:
Video of Collection:
This a demonstration to show how the collection boxes can be laid out to collect the coins falling from the chute.
Collection Box with Coins:
Collection Box with Coins:
This picture is a good way to see how many coins should be able to fit in each collection box.
Test Results:
Test Results:
Vibration System:
Vibration System:
A simple circuit is used to help move the coins down the hopper and into the chutes.
Unbalanced Nut:
Unbalanced Nut:
Because the nut is unbalanced, the motor become unstable by design and starts to vibrate.
PXL_20221013_202721145.mp4Video of Motor:
Video of Motor:
The motor is moving around because it it not secured, on the hopper, it will be still and move the coins.
AutoCAD & RD Works:
AutoCAD & RD Works:
Most of the pieces in the system were cut by hand, these are the special pieces designed in AutoCAD and show here in RD Works, the laser cutting program.
Hopper
Hopper
Coin Sorting Chute
Coin Sorting Chute
Because the difference of size between the coins are very small, precision is required.
Support
Support
video_Opo74k6l.3gpLaser Cutter:
Laser Cutter:
The machine uses a precise laser to cut out all different types of materials, here is a cardboard piecing being cut out.
Data Book Entries:
Data Book Entries:
Theses are the notes and drawings that helped design and plan out the project, as well as a record of all changes made during testing and construction.
Final System:
Final System:
PXL_20221013_235125033.mp4Bottom: Cardboard structure without collection or vibration system. Top: Completed system with all pieces ready to go.
This is the final work of all the researching, building and testing. It can sort 16 US coins with 62% accuracy in 6 seconds.
Testing Results:
Testing Results:
*Highlighted row is video shown above*
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