Robotics Hardware Primer See you on: Saturday, February 2, :00 PM PunchRock 1800 Wyoming Ave NW Washington, DC, DC

Agenda Instructions for breakout session Dave will demonstrate (10 minutes) – 3D printing – Stepper motor control Mike will demonstrate (10 minutes) – Connectors – Hardware guide – Sample moving parts rig Hands-on breakout session (40 minutes) Summary of other methods (20 minutes) Q&A session

Dave will show you: Sketchup 3D design STL export Slicing Gcode 3D Printing 3D Printing Demo

Dave will show you: Programming Arduino RAMPS controller Connecting steppers or servos Fast serial control with GCODE/terminal Stepper Motor Control

Mike will show you: How to tap holes in plastic Keep the part Flush/Straight Turn once, turn back half Continue until cleared Insert matching screw Connectors

Mike will show you: How to make a 3D printed slip fitting Optimize 3D printing process for tight fit Press part in Refine as needed Connectors

Mike will show you: A sample robotic assembly The arm contains makerslide, a strong nearly final prototype level quality aluminum Bearing slides on the aluminum A stepper with MXL pulley and timing belt Tapped holes inside the aluminum to hold the balancing pulley Connectors

Structure Difficulty Cost Strength/Longevity Stage of project 2X3 Stud Pinewood MDF Board Lasercut Veneered Particleboard /3D Printed Part 3d Pri nte d Fra min g/P art Metalwork Makerslide T slotted framing

Structure Costs Difficulty Cost Strength/Longevity Stage of project $0.30 /ft 2X3 Stud Pinewood $2 /ft MDF Board $2/ft Lasercut Veneered Particleboard/ 3D Part 3d Pri nte d Fra min g/P art $2-$10/ft Metalwork $5/ft Makerslide $30/ft T slotted framing

Structure Cutting methods Difficulty Cost Strength/Longevity Stage of project Table saw Jigsaw Tablesaw Jigsaw (DON’T BREATHE DUST) Lasercutter CNC mill 3d Pri nte d Fra min g/P art Vertical Bandsaw OR Metal cutting wheel Vertical Bandsaw

Structure Joining methods Difficulty Cost Strength/Longevity Stage of project Screws Bolts Glue Screws Bolts Glue Screws Bolts 3d Pri nte d Fra min g/P art Ceramic putty Bolts Tapping Ceramic putty Bolts Tapping Bolts Tapping

Structure Longevity Difficulty Cost Strength/Longevity Stage of project Bends over time/Humidity Water destroys it Cracks easily 3d Pri nte d Fra min g/P art Connections tend to fail Does not fail

Advanced Manufacturing Methods Injection molding Acrylic joining CNC machining See the book for More info!

Connections -Slip/tight fit -Threading -Threaded rod -Drill hole + anchor screw -Bearing (slip, ball bearing) -Glue and epoxy -Wire/tension -Gearing -Timing belts/pulleys -Spring -Flexible shaft coulpler

OPEN Q&A Session See you on: Saturday, February 2, :00 PM PunchRock 1800 Wyoming Ave NW Washington, DC, DC David Jones Vescarobotics.com Michael Armani Armanicreations.com

Presented By: See you on: Saturday, February 2, :00 PM PunchRock 1800 Wyoming Ave NW Washington, DC, DC David Jones Vescarobotics.com Michael Armani Armanicreations.com

Sources Sources -Mcmaster -Robotshop -Amazon -Pololu -Ebay -Aliexpress -Sparkfun -VXB/lynxmotion -Phidgets.com -econobelt.com Local -Home depot -Harbor Freight -Do you know of anything local? -Makerspaces? Price point examples Features to look for