• Interface between the motion system and process heads that allows the system to utilize any arbitrary process head that has been appropriately configured. • Mechanical Connection: A set of three pairs of axially aligned dowel-bearing mates with a centered dowel pin • Electrical Connection; A commercially available pin housing with 2 power and 8 data pins P14551: Multi-Process 3-D Printer Objective To develop a 3D printing system capable of executing both additive and subtractive processes through the design and implementation of a unique process head interface system while simultaneously minimizing system cost to appeal to the hobbyist market. System Constraints •Open source mechanical design •Cost under $5000 to produce •Reuse existing materials when possible •Fit on a standard lab bench •Utilize open source or low cost software •Implement an automated process head storage and retrieval cycle Faculty Advisor John Kaemmerlen Industrial Engineering Dept. Rochester Institute of Technology Overall System Electrical/Mechanical Head Interface (EMHI) Motion System Process Head Storage Enclosure Process Heads Jeremy Bennett (EE), Austin Chacosky (ISE), Chad Rossi (ISE), Nicholas Hensel (ME,EE), Matthew Demm (ME) • XY axes use MakerRail extruded aluminum for linear constraint • Z axis utilizes a 5DOF constrained precision linear rail • NEMA 23 stepper motors with integrated controllers and encoders used on each of the drive axes • Two representative process heads were implemented: • One additive and one subtractive • FDM extruder and Dremel Tool • System designed to store up to three process heads at one time Designed to maximize simplicity, this subsystem is located in front of one of the access doors to easily allow an operator to mount or remove process heads while providing a stable passive storage solution • Exterior made of hardboard due to strength, low cost, and surface finish • Frame made from extruded aluminum • Doors and windows made of Polycarbonate sheeting • Overall design focused on providing easy access and panel removal Mating surfaces maintain alignment and mechanical connection Attaches to Z- Axis Nut Block on back Pin housings connect process heads to power and control signals X-Axis YL-Axis YR-Axis Z-Axis 1100 mm 400 mm 350 mm Door sensors and E-Stop for user safety Mobile no tangle material feed 3D printed tool mounts System Control • The Arduino Due with ARM Cortex-M3 CPU utilized for entire system control • Firmware development based on modification of Repetier’s open source 3D printer software • Arduino accepts G-code commands from Repetier Host interactive GUI. Latching solenoid to firmly hold process head Standard FDM extrusion head Commercially available Dremel Tool Pair of brackets constrain storage plate on each side Bracket contains two U-grooves to passively support head plate pins while allowing easy removal Clear panels allow user to observe system in operation Low-cost hardboard used to enclose system Customer Dr. Denis Cormier Industrial Engineering Dept. Rochester Institute of Technology
P14551: Multi-Process 3-D Printer
Jan 25, 2016
P14551: Multi-Process 3-D Printer. Jeremy Bennett (EE), Austin Chacosky (ISE), Chad Rossi (ISE), Nicholas Hensel (ME,EE), Matthew Demm (ME). Faculty Advisor John Kaemmerlen Industrial Engineering Dept. Rochester Institute of Technology. Customer Dr. Denis Cormier - PowerPoint PPT Presentation
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• Interface between the motion system and process heads that allows the system to utilize any arbitrary process head that has been appropriately configured.
• Mechanical Connection: A set of three pairs of axially aligned dowel-bearing mates with a centered dowel pin
• Electrical Connection; A commercially available pin housing with 2 power and 8 data pins
P14551: Multi-Process 3-D Printer
ObjectiveTo develop a 3D printing system capable of executing both additive and subtractive processes through the design and implementation of a unique process head interface system while simultaneously minimizing system cost to appeal to the hobbyist market.
System Constraints•Open source mechanical design•Cost under $5000 to produce•Reuse existing materials when possible•Fit on a standard lab bench•Utilize open source or low cost software•Implement an automated process head storage and retrieval cycle
Faculty AdvisorJohn Kaemmerlen
Industrial Engineering Dept.Rochester Institute of Technology
Overall System
Electrical/Mechanical Head Interface (EMHI)
Motion System
Process Head Storage
Enclosure Process Heads
Jeremy Bennett (EE), Austin Chacosky (ISE), Chad Rossi (ISE), Nicholas Hensel (ME,EE), Matthew Demm (ME)
• XY axes use MakerRail extruded aluminum for linear constraint
• Z axis utilizes a 5DOF constrained precision linear rail
• NEMA 23 stepper motors with integrated controllers and encoders used on each of the drive axes
• Two representative process heads were implemented: • One additive and one subtractive
• FDM extruder and Dremel Tool• System designed to store up to three
process heads at one time
Designed to maximize simplicity, this subsystem is located in front of one of the access doors to easily allow an operator to mount or remove process heads while providing a stable passive storage solution
• Exterior made of hardboard due to strength, low cost, and surface finish
• Frame made from extruded aluminum• Doors and windows made of
Polycarbonate sheeting• Overall design focused on providing
easy access and panel removal
Mating surfaces maintain alignment and mechanical connection
Attaches to Z-Axis Nut Block on back
Pin housings connect process heads to power and control signals
X-Axis
YL-Axis
YR-Axis
Z-Axis1100 mm
400 mm
350 mm
Door sensors and E-Stop for user safety
Mobile no tangle material feed
3D printed tool mounts
System Control
• The Arduino Due with ARM Cortex-M3 CPU utilized for entire system control
• Firmware development based on modification of Repetier’s open source 3D printer software
• Arduino accepts G-code commands from Repetier Host interactive GUI.
Latching solenoid to firmly hold process head
Standard FDM extrusion head
Commercially available Dremel Tool
Pair of brackets constrain storage plate on each side
Bracket contains two U-grooves to passively support head plate pins while allowing easy removal
Clear panels allow user to observe system in operation
Low-cost hardboard used to enclose system
CustomerDr. Denis Cormier
Industrial Engineering Dept.Rochester Institute of Technology
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