Manpowered PVC Rollercoaster

Swing sets and jungle gyms are good enough for your average back yard. But if you want to go extreme you need to build your own backyard roller coaster.

This impressive offering uses PVC pipe for the rails. At its tallest it stands 12 feet, using pressure treated 4×4 lumber as the supports. Pressure treated spacers span the tracks, with the uprights — which are cemented in place — in the center.

You can get a better look at it in the video after the break. This is a parent-powered system. Strap you kid in and then use a stick to push the car up to the top of the hill. We just love it that before the kart has made it back to the start the child is already screaming “again daddy”!

It doesn’t look quite as fast as the metal back yard roller coaster we saw some time ago. But we do wonder how they bent the PVC pipes and whether they’re strong enough to pass the test of time (especially being exposed to the sunlight)? Continue reading “Manpowered PVC Rollercoaster”

Roller coaster simulator for the Redbull creation contest

[Dave] and [Martin], otherwise known as Ballistic Locomotive, sent in their entry for the Redbull creation contest. It’s a roller coaster simulator that can emulate the twists, turns, and drops of a roller coaster in your living room.

The simulator is built around a plywood roller coaster car mounted on a 2 DOF table. With a few first-person roller coaster videos and the speed, roll, and tilt data provided. Ballistic Locomotive had a functioning roller coaster simulator.

Of course, watching a 1st-person shot of a roller coaster just isn’t the same experience without the wind blowing through your hair. To simulate this aspect of a roller coaster ride, so the Ballistic Locomotive team connected a relay to the bullduino and connected a carpet drying fan.

Not only did Ballistic Locomotive build something awesome with their bullduino, they also manage to make a great ride for one of the builder’s son’s birthday party this weekend. You can check out the demo and a few videos after the break.

Continue reading “Roller coaster simulator for the Redbull creation contest”

Entrust you kid’s life to a homemade roller coaster?

So you fancy yourself as an amateur engineer? Been working on those welding skills for a while? The real test is to trust your children’s lives on a roller coaster you’ve designed and built (translated).

Now we’re not talking some tired old carnival ride like the teacups. This is a full-blown roller coaster, complete with an upside-down loop. The ride starts off with a chain-lift to the top of the garage/barn roof. From there it’s off and away on the single-rider train. We’d recommend keeping your hands and feet inside the car… if there was a car. The ride utilizes an automobile seat, but you’ll have to settle for a lap-belt as there’s no shoulder restraint here. We’re a bit wary of the track footings – we’d bet they’re not well anchored in the ground – but the fact that the entire length of track has been painted makes us think that [John Ivers] might have known at least a little bit about what he was doing. Don’t forget to catch the video below the fold.

Update: Much better video now embedded after the break thanks to [Tom 101’s] link in the comments.

Update: Source link changes to the original thanks to [Mike’s] comment.

Continue reading “Entrust you kid’s life to a homemade roller coaster?”