Hm, upgrades.

October 22, 2014

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20141022_103425_350w_motors

One of the problems we’ve been having from the start is that the motors I used were recycled from a couple of electric scooters and not only they are kind of weak, they are also unequal: one is 200W nominal and the other 240W. This wasn’t too apparent until recently when we implemented regenerative braking, […]

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Posted in: DiffTrike, Motivation, Motors

DiffTrike mechanical drawing

October 13, 2014

1

DiffTrike MarkIV measures. Some parts not accurately scaled. All measurements in cm, with a tolerance of +-1cm.

With some people wanting to build their own crazy trike / kart and due to popular demand, I’m posting here the current design and measures of our proof-of-concept vehicle. Obviously, this is not an engineering blueprint, and anything you build based on this information is your responsibility alone – don’t blame me/us if you break […]

Posted in: DiffTrike, Fabrication

We made the news!

September 23, 2014

2

artigo DN

We made the news!!! Here’s Portuguese television channel 3 (“SIC”)’s coverage of the event, with a 3 second apparition of the DiffTrike at timestamp 1:39. Plus, the national radio “Rádio Renascença” also promoted the event and interviewed me in studio about the project. My 20-second promotion spot can be heard on that page; an  8-minute […]

Posted in: DiffTrike

Off to the Faire!

September 22, 2014

5

Hitching a ride on a bigger vehicle. The Trike isn't ready for long trips (yet).

NOTE: THE Lisbon Mini Maker Faire 2014 IS NOW OVER. THIS IS A POST-POST. The Trike is finally ready for show time. Please have a seat and take a smooth ride… So I packed it up on my car and went off to the Maker Faire. Once we got there, a lot of people wanted […]

Posted in: DiffTrike, Motivation

Integration Jam Session

September 21, 2014

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Njay got the burned bridge rebuilt, tested, and “burned-in” for an hour at 10Amps, so we got together again to finish integrating the system. This time with the 500 kbps I²C bus between the RasPi and the Power Bridges, so that the link is loud and clear. Njay was afraid that such high speeds would […]

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Tuning out the glitches

September 20, 2014

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nuclear-explosion

WE ARE AT THE FAIRE RIGHT NOW! JOIN US! Meanwhile we’ll keep posting the story behind the project… Me and NJay finally got together for a hacking jam session to find out what the heck is going wrong with the I²C comms bus between the RasPi and the Power Bridges. This is where his shiny […]

Vroom vroom

September 19, 2014

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Chain guards for happier fingers

ATTENTION: THE Lisbon Mini Maker Faire 2014 OPENS TO THE PUBLIC TOMORROW, SATURDAY. GET YOURSELF REGISTERED ONLINE AS A VISITOR SO YOU DON’T HAVE TO WAIT IN LINE AT THE VENUE. IT’S FREE OF CHARGE, BUT YOU HAVE TO REGISTER FIRST. And now, back to our soap opera. The time has come to finally connect […]

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