Electric “Microkart” Has Tons of Kick

Go Kart with Independent Suspension

When you’re building an electric go kart, you really have two options. Convert a normal gasoline powered one by swapping out the power plant… Or build it from scratch! [Ganharr] opted for the for the latter to save some money, and to design it just the way he wanted.

Now you may have noticed it looks a bit small — because it is. It’s really more of a Micro-Kart, but that’s okay because [Ganharr] is winning a father-of-the-year award for building it for his kid!

It features two 2kW (~3HP) brushless electric motors, which independently drive the rear wheels. These are powered by two 48V 50A continuous (100A peak) speed controllers.[Ganharr] also spared no expense on the batteries, opting for a 48V lithium-ion pack composed of Headway cells (3.2V 15aH capacity each, 40152 type).  [Read more...]

Introducing the Flux Buggy — A Serious Electric Dune Buggy Conversion

The Flux Bugg

Believe it or not, the writers here at Hack a Day do their own projects too, we don’t just write about yours! I’ve just started a new project, and I want your advice! A few friends and I are converting a custom-made dune buggy — to electric.

The project will be chronicled over on Hackaday.io, with (hopefully) weekly updates on our progress. If you’ve been perusing Projects, you may have noticed my Electric Car conversion from a few years ago. First year of my engineering degree, my friend and I converted a 1993 Honda Del Sol to electric, using the guts of an electric forklift.

We got it going over 100km/h on used batteries our school donated to us. Unfortunately, there was a bit too much red tape and bureaucracy for us to get it on the road legally. That and we were poor university students who couldn’t afford new batteries, or the ridiculous amount insurance companies wanted to put it on the road. The project got scrapped after sitting in the backyard for a few years.

Fast forward to today, and we’ve both graduated and are working our “cushy” engineering jobs, and for the first time in our lives, we have some disposable income. We needed a new project to work on.

[Read more...]

Electric Go-Kart Made From Off The Shelf Components

Eletctric go kart
What would you do with a catalog of parts and a nice budget? [Ben Rothschild] decided to build an electric go-kart from scratch, for a contest he’s trying to win.

He designed the entire go-kart in 3D CAD using off the shelf components to speed up assembly. The frame is made of aluminum extrusion with t-bolt brackets, and he’s using modified FIRST Robotics wheels with standard #25 chain and sprockets.

Two 1850W Turnigy SK3 brushless motors make up the drive system, equivalent to almost a 5HP engine — except with a constant torque profile, meaning it’ll have no problem going up hills at 3km/h or 30km/h, no gearing necessary! To power the beast he’s using four hard-shell LiPo batteries (4S1P), which are rated for 14.8V and 5Ah. Two el cheap-o 24V 500W speed controllers (slightly concerning) provide the control system, which he may plan to upgrade in the near future.

The test drive video is a bit short, but it looks like with a bit more work this go-kart could have a lot of potential!

[Read more...]