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EEZYbotARM 3D打印四自由度机械臂下载

EEZYbotARM 3D打印四自由度机械臂下载
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  • 版本
  • 下载 11
  • 文件大小 4.99 MB
  • 文件计数 1
  • 创建日期 2021年9月2日
  • 最后更新 2021年9月2日

EEZYbotARM 3D打印四自由度机械臂下载

Summary

This is a 3D printed robotic arm

The intent was to design something "easy" and cheap to built with a good visual impact also.

Test video: https://youtu.be/qovZKW0DxWk
https://youtu.be/N55W8TdMfCo

I spent time to look around the web at some examples available that could be a good starting from, and between all I found interesting the phenoptix MeArm V4 project (http://www.thingiverse.com/thing:360108) especially for the simplicity and low cost of parts involved.
So I kept only the kinematics geometry and redesign all parts including the gripper


23/09/15
updated instruction and round ramp stl (R01), added ball stl
preliminary tests video
https://www.youtube.com/watch?v=x9C_3WHr1G0
https://www.youtube.com/watch?v=0OFL6MxbPIM


25/09/15
updated gripper r01 files


04/10/15
added instructables link in instruction

 

Instructions

I made an Instructables here : http://www.instructables.com/id/EEZYbotARM/

In all joint I use M4 screws with round head
For the vertical arm I prefer to guarantee a better precision using two brass pipes. the lower one stay in position kept by the servos, the upper one is crossed by a M3 screw (I'll post a better explaining image)

First tests has been made with cheap servo sg90
http://www.servodatabase.com/servo/towerpro/sg90

than I changed the more stressed with metal gear servos MG90
http://www.servodatabase.com/servo/towerpro/mg90s
only for the claw I left the plastic one (but this can be of your choice)

For driving the bot I made a lot of experiment using all the available method with arduino : sketches, potentiometers, joystick, WII nunchuck …. but at the end I discover a nice controller from Pololu that solves all the problem related to the servo driving in the easiest way. You can attach up to 6 – 12 – 24 servos depend of the controller type and it is provided with a software that give you the power to drive the servo in manual moving slides in the mean time you are able to set the values of speed and acceleration for any singular item. You can also build sequences of commands in a easy way, store them in the controller o get the code automatically. GREAT !

here the link of the Pololu servo controller
https://www.pololu.com/product/1352

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