1. Calvin Kwok Cary Sit Colin Wang Jack Ye Steven Norwood
Formlabs Automator
University of Waterloo Capstone Project
Calvin Kwok
Cary Sit
Colin Wang
Jack Ye
Steven Norwood

2. Automator | Design Overview 11/08/16
Aluminum T-Slot Extrusion Frame
Approximate Dimensions: 3m x 0.8m x 1m
Proto 1 will have wood side paneling
Operates with:
Up to 4x Form 2
Rosie wash
Automator cure
Automator part removal z y x

3. Automator | X Axis Gantry 11/08/16
Translation along x-axis
Two carts running on I-Beams
Carries Y and Z axis systems
Powered by DC Gearmotor with timing belts
170 oz-in stall torque, 200 rpm free
Cart
Timing belt pulleys
Gearmotor

4. Automator | Y Axis Gantry 11/08/16
Idler pulley
Idler pulley
Platform riding on linear bearings
Carries Z axis system
Powered by DC Gearmotor with timing belt
60 oz-in stall torque, 120 rpm free
Gearmotor
Linear Bearing
Guide rods

5. Fork to grab build platform
Automator | Z Axis Gantry 11/08/16
Form 2 NEMA 17 stepper
Uses Form 2 hardware
Stepper
Backlash nut
Linear track
Linear Carriage
Carries fork to manipulate build platform
Form 2 Backlash Nut
Fork to grab build platform
Form 2 Z carriage
Form 2 Z Track

6. Automator | Build Platform Detail 11/08/16
Chopped off handle
Build platform modified for Automator
4 holes for screw on eyelets
Handle cut off for clearance to lever
Carries fork to manipulate build platform
Printed eyelets

7. Automator | Resin Cartridge Capacity
Issue: Current resin cartridge capacity is 1L. Need to increase to 3L for continuous printing.
Replacing Cartridges
Larger Cartridge
Central Reservoir
Gantry system will replace cartridges
The system will need:
Cartridge handling provisions
Cartridge storage area
Cartridge size will be extended to 3L
The system will need:
Custom modified cartridges
Firmware changes to account for increased pressure
Single 12L reservoir for all printers
The system will need:
Custom reservoir
Firmware changes to account for increased pressure
Piping and valve system

8. Automator | Part Washing
Issue: IPA level will fall over time due to evapouration.
IPA becomes dirty with use, which could lead to insufficiently clean parts.
No Additional Systems
Fill Only
Fill and Drain
No additional systems needed if:
IPA is dirty after 72 hours
IPA loss insignificant
If IPA loss is too high, fill is needed
The fill system will have:
Clean 4L IPA reservoir
Pumping system
IPA level sensor
If the IPA loss is significant and the IPA is too dirty after 72 hours:
16L clean IPA reservoir
12L dirty IPA reservoir
Pumping system for fill
Pumping system for drain

9. Automator | Resin/IPA Systems 11/08/16
12L resin reservoir and 4L IPA reservoir
Gravity fed to solenoid valves which go to the printers/wash
Includes tank fluid level monitoring z y x
Not to scale