6 axis robotic arm
Hardware- 7 Devlogs
- 12 Total hours
I created a 6 axis robotic arm entirely from scratch starting from the PCB to the 3D modelling and designing.
Great work on adding all the .step files as required! :D
this project is really cool!
I have a few requests to note in your design, though:
- when using gearboxes on stepper motors, bolt them directly to the motor. something in between will cause issues in my experience. see this photo for the part I'm referencing: https://cdn.hackclub.com/01a025c5-f0af-7e38-a652-5abac235ab08/image.png
- the way that the 3 motors near the end of the arm are mounted doesn't appear functional to me.
- there's a lot of really really thin features in this CAD which have to carry a lot of weight. stepper motors & gearboxes are wayyy heavier than you would think. all plastic parts should be 5-10mm
- one of your motors doesn't seem to connect to anything & another one is entirely unable to spin
- no estop in your cad but estop in your bom!
Overall I really like this project and think it's really cool but needs some work to be functional. I really suggest that you make an Assembly in Fusion with actual joints to test things out, it helps me a lot with making sure my projects will actually work
Hello!
There are some minor changes that need to be made before this can be approved:
- All CAD files need to be .step files
- Add the firmware and PCB gerber files to your production folder.
Once these changes are made you will be approved! Great work on this project :)
Devlog #07
Wrote the complete documentation and uploaded all the files on github. I worte a very detailed description about this project and also the technical limits. If I will be able to gain all the materials to build the project the readme will have significant improvments like testing single components, their correct waveforms with an oscilloscope and then a full firmware for the arm. I also added more serigraphy manually to the PCB to make connectors simpler to find
Devlog #06
After many hours of work in CAD, the 3D model of the 6-axis robotic arm is finally done. I carefully chose the motors based on the weight they need to lift, making sure the arm has enough power while staying balanced. I also added key safety features, like rotation limits on each joint to prevent collisions and an integrated base that holds the custom PCB with a cooling fan.
Devlog #05
The PCB is FINISHED ! Finally after 3 hours of cabling the components it is ready. Now i need to start 3D modelling for the effective robotic arm and maybe later add and expasion to the board so people can add their own things to it.
Devlog #04
New update. Just finished placing all the component on the PCB but now it comes the hard work, also i am trying to keep things as smaller as possible but i think that this size is good. Now i will start wiring up the components and i think this will take a lot of time but we’ll se soon !
Devlog #03
Big update !!! Finally finished the schematic, it has been a long journey assuring every connection and improving the safety of the circuit. I just finished assining the footprints, so now it comes the PCB ! Here’s a little sneak peek at my MCU
Devlog #01
Started to wire up some components in the Power and MCU fields. I am also trying to make the schematic a lot cleaner than my other projects because this is a big one :) Stay tuned for more devlogs!
Devlog #00
This is the start of my new project ! I am going to build a full 6 axis robotic arm completely from scratch developing my own PCB with my own 3d design. My arm will have a lot of features like ai recognition, auto calibration, quick swap for tools and many others !
