#hackyracers — Public Fediverse posts

The start of the ‘night’ race yesterday evening. The rain stopped just long enough for an evening race with lights on. #hackyracers

More of today’s #hackyracers

A taste of what is going on at the #hackyracers meet at #SantaPod raceway.

@rpimag I hosted the #HackyRacers autonomous robotics racing meet over the weekend. Lots of #RaspberryPi and Pico brains in robots, and a load of fun had. #MakerMonday

@rpimag I hosted the #HackyRacers autonomous robotics racing meet over the weekend. Lots of #RaspberryPi and Pico brains in robots, and a load of fun had. #MakerMonday

@rpimag I hosted the #HackyRacers autonomous robotics racing meet over the weekend. Lots of #RaspberryPi and Pico brains in robots, and a load of fun had. #MakerMonday

@rpimag I hosted the #HackyRacers autonomous robotics racing meet over the weekend. Lots of #RaspberryPi and Pico brains in robots, and a load of fun had. #MakerMonday

@rpimag I hosted the #HackyRacers autonomous robotics racing meet over the weekend. Lots of #RaspberryPi and Pico brains in robots, and a load of fun had. #MakerMonday

Views from the pits today. #hackyracers

I’m not sure how it steers when the front wheels are not actually touching the ground! #hackyracers

Cyber Truck, ruining my grass! #hackyracers

SLO-Mo action from yesterday. Looking forward to more #hackyracers action today.

Having a great time hosting the Hacky Racers robotic series event this weekend. #HackyRacers

@MakersHour Hi I’m Footleg. This week I’ve mainly been working on preparing for the #hackyracers autonomous robotics racing event this weekend. Tonight has been spent filing down 3D prints and working through the #MakersHour questions backwards.

A few more QR code gates to make today for #hackyracers autonomous competition.

I’m going to be seeing QR codes in my sleep tonight. #HackyRacers

It looks an absolute beast, but the drive chain and steering fail in almost every way. I just tried to make it move with the wheels on and the motor is so fast that it doesn’t have the torque to even move it, and the steering servo doesn’t have the torque to move the steering at all if the wheels are touching the ground. #HackyRacers

Apparently all we need now is a carrot on a stick and it'll go where we want! #hackyracers

I haven’t got my robot mobile yet, but we have built a test course and taken Brian’s robot for a spin. #hackyracers

Well it printed beautifully. Now let’s see if all that late night CAD iterating has got everything in the right positions. #hackyracers

Over a month on, I have not been idle on this project. The positioning of the steering and suspension assembly took a lot of tweaking to get right with my actual parts dimensions. But the suspension travel now works without the wheels tilting in an out. Then I had to make the drive components and servo fit around all this. Adding ribs for rigidity. Space is tight, but I'm getting there. #HackyRacers

Pleased with today's work. I designed a mounting system for QR codes to be used as gates for the #HackyRacers autonomous robotics racing event in a few weeks time. We need around 50 of these gates, so the design needed to be weather proof, low cost, low effort and possible to make from scratch on site in case any gates have 'accidents' during the racing.

A lot of progress on the CAD model for my #HackyRacers A2 class autonomous racer since I last posted about it. Parts for the steering linkages arrived and tonight I measured and modelled these. So now I have a working CAD steering assembly to tune the dimensions of.

How did things get so complicated! Many iterations later, I am printing my final-final-final test fit parts. #HackyRacers #CAD

Two steps forwards, one step back. Just as I had got the gear meshing really nicely tuned with the nice differentials I bought, I realised the dogbone cups on them were too large for the dogbones my suspension arms need. Luckily they came with another pair of differentials but they are a different size to the others in all dimensions, so several hours of CAD later and we are doing test fit prints again. #HackyRacers

Good progress this week on the CAD modelling of the alloy parts I bought for my A2 Hacky Racer. I started designing the rear wheel assembly tonight. #HackyRacers #CAD #robotics

One down, six more to go. #hackyracers #cad

@rpimag Progress on my actual build today. I have a working differential gearbox. Parts all remodelled to fit the bearings on these metal parts which were different to the dimensions of the original design. Tuning the positioning of the gears so they mesh well without binding required 0.25mm adjustment precision. After several test prints to dial in the exact dimensions it runs really smoothly now with the parts I bought. #hackyracers

We’re gonna need parts, lots of parts. #hackyracers #RoboticsSeries

I was up late working on CAD for my #hackyracers A2 class robotic racer design so I could confirm the sizes of RC drive train parts I needed to order from AiExpress. Planning an off road 4WD chassis with suspension and Ackerman steering. My first foray into brushless motor drive too. #maker #Robotics

How Far Can You Push A £500 Small Electric Car; Four Years Of The Hacky Racer - Four years ago when the idea of a pandemic was something which only worried a few ... - https://hackaday.com/2022/06/22/how-far-can-you-push-a-500-small-electric-car-four-years-of-the-hacky-racer/ #transportationhacks #brushlessmotor #hackyracers #alternator #carhacks #featured #interest #acmotor #motor

Battle Tested Current Limiter for Cheap DC Motor Controllers - Running a brushed motor in muddy or dusty environments takes a toll on controllers, with both heavy ... more: https://hackaday.com/2019/05/11/battle-tested-current-limiter-for-cheap-dc-motor-controllers/ #transportationhacks #dcmotorcontroller #currentlimiting #motorcontroller #brusheddcmotor #hackyracers #hardware #dcmotor