EEZYbotARM MK2

thingiverse

This is a 3D Printed Robotic Arm. It Follows the Success of My Previous Smaller One EEZYbotARM, So I Simply Called it MK2 (Make 2). It Is a Little Bigger and Stronger, Just to Obtain an Acceptable Payload. It Has Been Designed Without a Definite Purpose, the Aim Is Educational, Providing a Suitable Hardware That Allows Concentrating on Exploring All Its Potential Applications. It Shares the Kinematic Linkage of the ABB IRB460 Scaled Down with a Ratio of 1:7. I Implemented Also Some Little Features Like: a Replaceable Clamp with Quick Coupler, Internal Cable Routing in Main Big Arms, Vertical Axis Supported by Spheres. I'm Also Evaluating If It Is Necessary to Add a Counterweight or a Balancing Spring for the Main Arm. Printing & First Test Video: EEZYbotARM MK2 First Test Non-Printed Parts BOM List: n°3 995 or 946 Servo n°1 SG90 SERVO n°1 M6 Self-Locking Nut n°1 M6x25 Screw n°2 M3 Self-Locking Nuts n°2 M3 x 20 Screws n°1 M3 x 10 Hex Recessed Head Screw n°9 M4 Self-Locking Nuts n°1 M4 x 40 Screw n°1 M4 x 30 Screw n°5 M4 x 20 Screw n°1 M4 x 60mm Threaded Rod n°1 M4 x 32mm Threaded Rod n°25 Ø6 mm Ball Spheres n°1 606zz Bearing Some M4 Washers Software / Firmware: As It Has Been Already Said on the Previous Issue, There Are Several Ways to Drive the Arm. It Depends on What Kind of Results You Want to Obtain. Mainly Dependent If You Want to Freely Move it or Make it Repeat a Loop. I Found Easy Using a Pololu Mini Maestro Card That Doesn't Require Writing Any Code. Anyway, I Made an Instructables: Android APP to Control a 3D-Printed Robot Where You Can Find Some Code. I'll Made Some Updates in Next Days. Happy Robotics! Update 04/06/16: Onshape Claw Std Interface Editable Model Begin to Make an Assembly Instruction on My Web Site EEZYrobots.it Update 10/11/16: I Made Available the Source CAD Files on My Onshape Account: https://goo.gl/ACnRhT. You Can Copy or Export Files!!! Update 15/04/17: I Made an Instructable for the Assembly. Update 18/03/18: I Made a Remixed Version of the Base: https://www.thingiverse.com/thing:2830251 Print Settings: Printer Brand: RepRap Printer: PRUSAi3 Rafts: Doesn't Matter Supports: Yes Resolution: 0.3 Infill: 30% Notes: It Is a Little More Challenging to Print Than the MK1 Due to Its Dimensions and Also Some Parts Geometry. It Requires a Printing Area of About 200x200 mm and Some Pieces Needs to Be Printed with Supports Enabled. Most People Are Scared by Support (Also Me) but at the End Its a Technique That Works and Solve a Lot of Problems, So Why Not? Post-Printing: As for MK1 All Holes Are Slightly Tight Because I Prefer to Adjust the Size Using an Exact Drill Bit to Recover Any Kind of Possible Misalignments. How I Designed This: I Made Available the Source CAD Files on My Onshape Account: https://goo.gl/ACnRhT. You Can Copy or Export Files!!!