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Multi-Process 3D Printer: Detailed Design Review. Group Members: Jeremy Bennett Austin Chacosky Matt Demm Nick Hensel Chad Rossi. Customer: Dr. Dennis Cormier Guide: John Kaemmerlen. Objective. Obtain feedback to prepare for the gate review
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Multi-Process 3D Printer:Detailed Design Review Group Members: Jeremy Bennett Austin Chacosky Matt Demm Nick Hensel Chad Rossi Customer: Dr. Dennis Cormier Guide: John Kaemmerlen
Objective • Obtain feedback to prepare for the gate review • Receive confirmation that the design is sufficient • Receive approval to order the materials and to start preparation for Multi-disciplinary Senior Design II Speaker: Chad
Agenda • Project Overview • Review Customer Needs • Review Engineering Specs • Critical Subsystems • Mechanical Electrical Head Interface • Motion System • Hybrid Rapid Manufacturing Tool (HRMT)Storage Subsystem • Other Subsystems • Enclosure/Safety System • Extruder Tool • Rotary Tool • Machine Bed • Bill of Materials • Cost Layout • Updated Risk Assessment • Test Plan • MSD II Project Plan Speaker: Chad
System Architecture Speaker: Austin
Review of Customer Needs Speaker: Austin
Review of Engineering Specs Speaker: Austin
Overall System Design Speaker: Matt
Mechanical/Electrical Head Interface Speaker: Matt
Mechanical/Electrical Head Interface • FEA Results: • 70N Load at COG for extruder head • Max Stress: 44GPa (bolt) • Fsyield= 1.25 • Max Deflection: 0.03mm Speaker: Matt
Mechanical/Electrical Head Interface Speaker: Matt
Mechanical/Electrical Head Interface Maximum Spec Process Head @ 4g Deceleration Taper Pin Under 1g z, 1g y Speaker: Matt
Motion System Speaker: Nick
Motion System Speaker: Nick
Motion System Speaker: Nick
Motion System Speaker: Nick
Motion System Speaker: Nick
Motion System Speaker: Nick
HRMT Storage Subsystem Speaker: Nick
HRMT Storage Subsystem Speaker: Nick
Enclosure/Safety System Speaker: Nick
Extruder Tool Speaker: Matt
Rotary Tool Speaker: Matt
Material Bed Speaker: Austin
High Level Electrical Block Diagram Speaker: Jeremy
Higher cost than Arduino Duo Lower clock speed 8 bit operation system May lead to slow system operation Boneyard Inventory: Arduino Mega Speaker: Jeremy
Microcontroller Selection • Arduino Due 32-bit ARM core, Low Power 3.3 Volt System • Open Sourced Nature with Many Available Resources • 84MHz Clock, 512Kb flash, 54 I/O Pins Speaker: Jeremy
Insufficient Torque for moving large tool heads May be useful for future teams making powder bed Boneyard Inventory: Lin 3518M Motor Speaker: Jeremy
Model 23MD306S-00-00-00 Much higher torque than required Close to double the cost of more appropriate motor No encoder If used 23MD306S may obscure true system performance May be useful for testing components Can be used as a fallback if selected motors fail Boneyard Inventory: MD 23 Motor Speaker: Jeremy
Motor Selection • Nema23 Stepper Motors with Integrated Motor Drivers • Torque Requirements met by 175 and 262 Oz-in models Speaker: Jeremy
The use of Nema 23 Motors with built-in controllers make the Xylotex Controllers not needed May be useful for future bed system or if Nema 23 motor controllers fail Boneyard Inventory: Xylotex 3.0 Motion Controller Speaker: Jeremy
Power Supply Selection • Enclosed Adjustable 200W Power Supply • Up to 8.8 Amps at 24 Volts • Internal Current, Voltage and Temperature Protection Speaker: Jeremy
Cost Layout *Raw materials includes: -10mm support plates for z-axis -Various plates to form EMHI assembly -Framework of the enclosure Speaker: Nick
Bill of Materials X-Y Motion Control Long Axis Short Axis Speaker: Nick
Bill of Materials - Motors Total:$794.00 Speaker: Jeremy
Bill of Materials – Enclosure Total Cost: $513.72 Speaker: Matt
Bill of Materials – Z-Axis Total: $520.19 Speaker: Matt
Bill of Materials EMHI + Tools Total: $353.87 Speaker: Matt
Bill of Materials - Bed Bill of Materials - Electronics Total Cost: $335.69 Bill of Materials - Storage Total Cost: $329.64 Total Cost: $13.08 Speaker: Matt
Motion Data Control Path CAD Files .stl G-Code files G-Code lines Skeinforge ArduinoSend G-Code lines G-Code lines Electric Impulses Firmware based on TeaCup with G-code interpreter Speaker: Austin
Test Plan Speaker: Austin