The style of building world saving open source autómata arms is ter total sway. This arm however has a pretty specific mission and it seems to be built decently to do it. It is designed to hold a pair of contraption goes vertically. It is a SCARA style arm which means it dispenses with the complicated wrist and shoulder actuators but has fewer degrees of freedom. . However compared to a classic gantry style CNC this has the benefit of being smaller, but has the disadvantage of being far less rigid. I wish them luck and hope to see another entrant into the world of open source.
There have bot two more robotic arms on Kickstarter ter the last month or so. The Niryo it shows up has bot successful, spil wasgoed the Haddington Dynamics Kickstarter. Is this the fresh 3D printing for Kickstarter?
uFactory, is releasing their 3rd generation arm, the “Swift” which looks to be a nice improvement on their previous arm the uArm metal (Note: I own a uArm Metal and reviewed it here). The uArm wasgoed traditionally a servo based arm, which, if you read this blog, know that I am not the thickest fan of. However, this time around they are delivering a “Pro” version which has both steppers and encoders. This can provide a series of benefits:
- Improved accuracy, linearity and repeatability even when bumped or overcharged
- The capability to manage acceleration, deceleration
- Permits a training mode where the arm can record the position you waterput it ter (this is done with the encoders, not the steppers)
Ter addition it looks like they have added a few more nice capabilities to the uArm including:
- Improved Software (the software ter the very first version wasgoed already pretty nice.)
- Different end-effectors including a claw and a laser marking head.
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I wish them luck, the product looks like a winner and has already exceeded the funding goals. The verbinding the the Indiegogo webpagina is here.
Another open source autómata arm has cropped up on Kickstarter, It seems to have 6 Versuft which is nice. Remarkably it uses brushless DC motors and Hypocycloidal gearboxes that they voorkoop are backdriveable. This is a serious step up from the hobby servos many arms use but there are lots of tradeoffs with hypocycloids which need to be overcome. The maneuverability looks a bit jerky right now spil well, so I suspect some more work needs to be done either on software or hardware. All said however, the ambitiousness of the vormgeving and price point has mij intrigued.
Bart Dring, whom I have followed for a while, te fact everzwijn since I built an ordbot, one of his 3D printer designs. Has embarked working on a Autómata Arm and did what I thought to be nigh unlikely, 3D Printing a harmonic drive.
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Hackaday.io has attracted another nice robotic arm project to it’s webpagina. This is arm is a very nice, open source vormgeving that makes clever use of a differential to combine Two degrees of mobility into a single snaak. I also appreciate that he wasgoed good enough to go through the inverse kinematic prototype that defines this arm. Inverse kinematics is a mathmatical method to figure out arm angles required for the end effector (the gripper te this case) to be ter a certain location. More at this listig
I have added some long overdue security enhancements to robotarm.org. Very first is that the webpagina now supports HTTPS, for those that dont know, this provides for the authentication and encryption of the packets that travel inbetween your browser and our servers to prevent an observer te the middle from watching your traffic. For those who are nosey, I am using a free certificate from Let’s Encrypt. 2nd is that I have added a security question for fresh sign-ins is likely most cannot be answered without research. While I expect this 2nd one to slow down adoption of this community, ultimately I think those who do choose to sign up will see less spam and love the community more. If you have any questions, please waterput them ter the comments below.
A very cool drawbot. I am typically not a fan of servo based robots, however this shows up to be dynamixels or something like that rather than hobby servos. Overall the results are excellent.
I am here because I just began my journey into robotic arms recently. Albeit I have a bit of a long history with robotics, specifically last year april 2018 I designed an arm. I dont know much about programming or electronics, but I do know a bit about cad and fabrication.
So this year, on march 2018 I wasgoed eventually able to afford the cost of waterjet cutting some of the parts spil well spil buying most of the components I needed. Im not yet ready to commence programming since I am still missing about half the arm.
Ter any case, Id like to begin discussing several topics related to my project. Specifically, my main objective is to install a cutting/milling device on the end of the arm to cut through at least 1/Four″, thick aluminum.
One friend of mine commented that ter machining there are alot of stimulations and thus the androide arm wont treat it too well. Since Im just beginning out I think very first I need to finish the arm, then learn to program it, then learn to interface it with cam software, then embark cutting, and lastly commence improving it.
So yeah, thats my very first question, what should I do about programming the arm ?
I have arduino on my laptop, have an uno houtvezelplaat with a grbl shield, and Four steppers. Any advice ?
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I ran across this today and thought it looked interesting: