3D Printed Actuator | Unparalleled Value High-Performance Robotics

This is world's highest value robotic actuator in its class.
In the pursuit of the perfect robot actuator I've tested: strain wave (SW), split-ring SW, cycloidal, planetary, compound planetary, compound cycloidal, cable driven, belt driven, capstan, eccentrically cycloidal, ball screws, and worm drives. This is by far my favourite.
Optimised for legged robotics, it provides unmatched value.
It could be used for a biped, quadruped, a massive hexapod, or a terrifyingly fast DIY door opener (would not recommend for safety reasons)...
www.rboticLabs.com - For actuator CAD/Info/Purchasing

[@PilotsPitstop]

i have been trying to find a design for semi cost effective joints for so long now this is the only one that has impressed me this much

[@RoccosStuff]

It's amazing we are at the point in DIY where people are building and engineering literal robots. I'd love to see more info on what you're doing. Great work!!

[@dankay9202]

Definitely interested in seeing more

[@mikearchangel]

Yeah bro, it's freaking awesome. I'd love to see more. It's exciting how so many of us independents are converging from different angles. I bet in a few years if we combined the best aspects of all > sensing, arms/manipulators, locomotion, processesing, power system, etc. We'd have a super kick ass, top quality product - probably better in many ways besides cost. Keep up the great work.

[@MarioAbbruscato]

it's amazing!

[@rbotic]

Thanks!

[@ulforcemegamon3094]

This seems really interesing , i would like to see more , we need some servos with strong torque since most of the comerciably avalaible ones won't cut it for some projects

[@draggador]

I'm interested in you showing us your bipedal robot with these actuators.

[@timeTegus]

Cool please show that robot ❤

[@kindaovermyhead]

Very impressive, I'd love to see a teardown of the mechanism and why you chose it

[@rbotic]

Thanks! I'm certainly considering it if enough people are interested.

[@Zeddify]

im interested

[@mkalanda]

@@rbotic you should make more detail video.
how to assemble, ,make PCB and code open score, and more people will be engaged

[@bruce_builds]

I'd definitely be interested!

[@DavePetrillo]

How do you get the heat out of that housing without softening it when the motor is putting out 62w of heat at the 'nominal' torque rating? Is the continuous rating lower? I have also been working on high performance low cost actuators and comparing them for robotics. Very cool design!

[@rbotic]

Thanks! Total power draw of the actuator (motor+controller) at nominal torque is 31W. Other actuators, although made of more heat conductive aluminium, spec >50W excluding the controller as their nominal. This assumes their data sheet is accurate. All I can say for certain is that the actuators have never passed the glass transition temp of the plastic with a wide range of duty cycles.

[@bruce_builds]

Do you mind sharing what chip you use in your motor driver? I'm assuming you're doing FOC control since you have BLDC

[@rbotic]

It's a COTS dgm motor controller running a custom firmware. Yes it does use FOC (torque control wouldn't be possible otherwise).

[@michazarzycki1634]

Does CAD file that you sell on your webside is a full assebly of the actuator? I wpuld love to see how did you manage to get this incredible results on 3d printed actuator, im actually wrinting an Engineering Thesis about the robotic actuators and im looking for any posible inspiration. Very impresive work overall.

[@rbotic]

It uses a conventional 2 stage herringbone gearbox in a very compact novel way. You can see how it works in the latest video so you may not need to buy the CAD. I'd only want to buy it if you'd like to make one yourself. Yes it's a full assembly

[@thomasmaiden3356]

You might want to ask about the Part number, and manufacturer of the motor as well as the cost - and the cost of the motor driver and positional sensors. They look like great actuators, but I have to think that the cost is a little steep for a robotic hobbyist

[@PhG1961]

Awesome! Can you tell me more about the axial load the actuator can with stand. I'm working on a robot shoulder joint. I'm wondering if the actuator can hold heavy load sideways.

[@rbotic]

It's been tested with an axial load of a human weighing ~70kg. I reckon it could go higher. Make sure you mount to the outer ring to avoid loading the central surface of the output.

[@PhG1961]

@@rbotic Excellent, this looks very promising!

[@ruisuter6139]

Uhmmmmm this is interesting, thanks bro; if I use it I will put your name on it

[@ledshowinindia6571]

Hello looking ultimate actuator , i downloaded the cad file, hope you will release the full files.
all the best

[@rbotic]

Stay tuned ;)

[@user-fm4hd6wr4k]

I want to know what transmission it has adopted?

[@rbotic]

I'll make a video on it if there's enough interest. But it's a unique herringbone arrangement

[@user-fm4hd6wr4k]

I'm very interested because I also tested every possible design almost like you

[@uthvfyrekbnm6008]

How can i buy it if i dont know what type of drive it use?

[@rbotic]

It's a large radius brushless motor that drives a novel herringbone gear arrangement

[@epsylonz4958]

Awesome project I'm really interested in these types of actuator. I'd like to manufacture them and sell them. I've got a client who needs a pick-and-place cobot these actuators could work. If you are interested in collaborating let me know ;)