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Project developed by [[User:Zsarnold|Zach Arnold]] and [[User:Ajvincen|Drew Vincent]]
Project developed by [[User:Zsarnold|Zach Arnold]] and [[User:Ajvincen|Drew Vincent]]
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== Abstract ==
== Abstract ==
The goal of this project is to be used by a 3D Printing service to accurately determine prices of prints based on the amount of material used and the type of material used.  The device will be able to measure the weight of a print using a small load cell and display the weight on an integrated LCD screen. In addition to the weight, the screen will display the cost of the print given the current settings. Push buttons located on the sides of the housing allow for the user to change the material and the user rate (private or university-related). Lastly, the measurement plate will be modular so the user could measure prints on a plate or in a bowl, which would be beneficial for large amounts of very small prints.
The goal of this project is to be used by a 3D Printing service to accurately determine prices of prints based on the amount of material used and the type of material used.  The device will be able to measure the weight of a print using a small load cell and display the weight on an integrated LCD screen. In addition to the weight, the screen will display the cost of the print given the current settings.


== Bill Of Materials ==
== Bill Of Materials ==
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Github code for scale:
https://github.com/zsarnold/OSHE_Print_Scale
<br/>NIH Model Library: https://3dprint.nih.gov/discover/3dpx-012320
== Tools Needed ==
== Tools Needed ==
# [[Athena Build Overview| MOST Delta RepRap]] or similar RepRap 3-D printer
# [[Athena Build Overview| MOST Delta RepRap]] or similar RepRap 3-D printer
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== Technical Specifications and Assembly Instructions ==
== Technical Specifications and Assembly Instructions ==
The design of the 3D Print Material Scale consists of the main body housing and 2 measuring plates, one flat and one bowl shaped.
{{Gallery
{{Gallery
|title=Design
|title=Design
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|File:OSH_Mat_Scale_Housing.jpg|Fig 1: Scale Housing.
|File:OSH_Mat_Scale_Housing.jpg|Fig 1: Scale Housing.
|File:OSH_Mat_Scale_Plate.jpg|Fig 2: Square Measurement Plate.
|File:OSH_Mat_Scale_Plate.jpg|Fig 2: Square Measurement Plate.
|File:|Fig 3: Housing with Electronics Mounted.
|File:OSH_Mat_Scale_Elec.jpg|Fig 3: Housing with Electronics Mounted.
|File:|Fig 4: Display of Price and Weight of Print.
|File:OSH_PrintScale.png|Fig 4: Display of Price and Weight of Print.
}}
}}
====Wiring====
<u>Arduino Nano</u>
<br/>A4 - LCD SDA
<br/>A5 - LCD SCL
<br/>D2 - Scale module
<br/>D3 - Scale module
<br/>5v - Scale module/LCD
<br/>GND - Scale module/LCD
<br/><u>Scale</u>
<br/>Load cell - Scale module
==== Upcoming Features ====
Push buttons will be located on the sides of the housing and allow for the user to change the material and the user rate (private or university-related). The measurement plate will be modular so the user could measure prints on a plate or in a bowl, which would be beneficial for large amounts of very small prints.


== Cost Savings ==
== Cost Savings ==
# Cost to build: ~ $20.00
# Cost to build: ~ $34.23 in electronics + $1.65 in filament
# 1000g X .1g Kitchen Scale on Amazon ~ $11.99 (lacks functionality to display a price based on material)
# 1000g X .1g Kitchen Scale on Amazon ~ $11.99 (lacks functionality to display a price based on material)


== Benefited Communities ==
== Benefited Communities ==
* OSHE: [http://www.appropedia.org/Michigan_Tech_Open_Source_Hardware_Enterprise]
* Print Farms


== References ==
== References ==

Revision as of 15:35, 7 November 2019

Project developed by Zach Arnold and Drew Vincent

Abstract

The goal of this project is to be used by a 3D Printing service to accurately determine prices of prints based on the amount of material used and the type of material used. The device will be able to measure the weight of a print using a small load cell and display the weight on an integrated LCD screen. In addition to the weight, the screen will display the cost of the print given the current settings.

Bill Of Materials

Part Price Quantity
Digital Weight Sensor $16.95 1
Arduino Nano $12.86 for 3 1
Arduino LCD $6.49 1
Tactile Switch $4.33 3

Github code for scale: https://github.com/zsarnold/OSHE_Print_Scale
NIH Model Library: https://3dprint.nih.gov/discover/3dpx-012320

Tools Needed

  1. MOST Delta RepRap or similar RepRap 3-D printer
  2. Allen Wrench (For M5, M4 and M3 Bolts)
  3. Soldering Iron and Solder
  4. X-ACTO Knife or similar for cleaning printed material
  5. PC for Arduino Programming

Technical Specifications and Assembly Instructions

Wiring

Arduino Nano
A4 - LCD SDA
A5 - LCD SCL
D2 - Scale module
D3 - Scale module
5v - Scale module/LCD
GND - Scale module/LCD
Scale
Load cell - Scale module

Upcoming Features

Push buttons will be located on the sides of the housing and allow for the user to change the material and the user rate (private or university-related). The measurement plate will be modular so the user could measure prints on a plate or in a bowl, which would be beneficial for large amounts of very small prints.

Cost Savings

  1. Cost to build: ~ $34.23 in electronics + $1.65 in filament
  2. 1000g X .1g Kitchen Scale on Amazon ~ $11.99 (lacks functionality to display a price based on material)

Benefited Communities

  • OSHE: [1]
  • Print Farms

References

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