Im a self-taught robotics engineer who has also worked on rockets, jet engines and drones throughout his aerospace degree in his spare time. Now ive cofounded a robotics company in London, Paddington Robotics. ROBOTICS JOURNEYMEN. LET ME IN.

So I got 2 of these ACS758xCB bidirectional 150A current sensors from Aliexpress and this is what they shipped 😭. I cant even be mad because it works perfectly at 1/4 the price. They straight up just stuck a linear hall sensor and some steel sheets around it to force the

Join millions who have switched to Grok.

absolutely no one:. japanese researchers: aerodynamics of a Mongolian dog.

me at 5am looking at an empty fusion CAD file thinking doing something else rn

bro i hate making cable driven robots. So many bearings and no good CAD support for cables/chains😭. Are there even any CAD softwares that are good for modelling cables/chains?. Im talking about native support for pulleys and stuff with cable locations changing with pulley

I just noticed that my Chinese brushless motor supplier also has a shop cat inspecting the pallets 🐈

machining some bullshit . god i love adaptive toolpaths in aluminum

taco bell.

me: why are my parts completely fucked on setup 2?. the completely fucked setup:

Love me a huge annular cutter🔩. Insane MRR if you need to remove a big hole from a chunk of material. The trick is to drill a small hole to break the long chips. That causes the cutter to throw chips out and you can just plunge down. Plus you get a free smaller cylinder!

I didnt know Jesus Christ himself was interested in lidars

As for range, 15m is it's absolute max (indoors), surprisingly above the datasheet's claimed 12m. This is the max distance the lidar can reliably detect a wall (so not small objects). And for accuracy, even at 15m, I can reliably get ±2cm. This is pretty reliable across ~10

Top PCB:. The top PCB takes power from the bottom coil via a full bridge rectifier. It's spun by the small BLDC which you can see barely peeking through and the angular position of the PCB (while its spinning) is tracked by a light gate (U7) which is interrupted by the teeth

Base PCB:. Starting on the bottom, theres a base PCB which connects to a BLDC motor to spin the top section. It also connects to a wireless charging coil. On the bottom of the base PCB, theres a photodiode (which will become important later as it is used as a photoreceiver for

Just took apart the RPLIDAR C1 from Slamtec, the common $65 LIDAR that almost every robotics project uses. Im actually really impressed with the build quality and accuracy (±2cm @ 15m). It even uses wireless power+data and a BLDC so no wearing parts!. Teardown thread below🧵

anyone thinking about buying a lathe?. prove you are worthy to first

Heres something Maxon mentioned re. design of actuators for robotics. Harmonic drives have the same level of backlash as planetaries under load. Redpill of the century. I always thought harmonics were the best for positional accuracy but i guess when you make a flexible strain

who up dead bugging they pcb. (guess the circuit)

hardware is like software but it takes a week to compile and $44 in shipping fees to print out results

you know youve made it when the chinese bots start mass liking your tweets.