Who doesn't like pneumatic engines?

[jesse66058]

Hello everybody,

Since i never posted something i have build, i thought this would be something nice to post. Since another project which i'm following has took a break i thought it would be nice to use one of LPEPowers engines in an official LEGO set. :)

I've tried the SYS I3 in 8285 with no succes so far. Today i had some spare time and made a fast moc-up with 8146 which works. Lightweight body and very simple chassis. No suspension or else was needed, i did build a torsional bumper, because safety first!

This was the result in 3 hours:

Very disappointing the V8 did not fit. :P

Geared 1:3. The result was blazing fast. Now we can call the model a real nitro muscle car. :)

When the video is uploaded to my Dropbox i'll post some footage here with a small teaser about a more serious project. :P

Edit:

Here it is: https://www.dropbox....7lsjk/Forum.wmv

It seems like Dropbox is putting down the videoquality a lot. :/

Edit 2:

Resized images due their too big size.

Edited April 10, 2014 by jesse66058
Removed oversized photo's, try to use the same size as your first photo's next time!

[piterx]

can't wait to see how it came out :)

[Lakop]

Blazes! I look forward to your video.

H

[kieran]

Fantastic, that runs really quickly

[darsedz]

fast enough to build "real like " lego dragster (some air tank as source of air for short distance)...

[Marcel1980]

You should build in compressor with a RC motor!

[1nxtmonster]

You should build in compressor with a RC motor!

Problem with that, when you go from kinetic motion to air pressure back to kinetic motion you lose power. It would be slower than just an RC motor

[DrJB]

Yes ... there are inherent losses .... Else, would have neat to have a perpetual motion MOC ...

[Jullian_pdx]

You could use a AL6 CF SCUBA tank with a dry suit 1st stage. The 1st stage will bring the service pressure from a rated 3000psi down to a more manageable 140psi. They even have cheap air sprayers with a lever that you can connect a low pressure quick-disconnect and maybe use a PF servo motor to remotly control the airflow. You probably could pick up the bits used at a dive shop for a little over $100US.

[1nxtmonster]

You could use a AL6 CF SCUBA tank with a dry suit 1st stage. The 1st stage will bring the service pressure from a rated 3000psi down to a more manageable 140psi. They even have cheap air sprayers with a lever that you can connect a low pressure quick-disconnect and maybe use a PF servo motor to remotly control the airflow. You probably could pick up the bits used at a dive shop for a little over $100US.

For my 8x8 LPE Trial Truck, I'm using a 5 gallon portable air tank that I got for $20 charged to 65 psi. I can get a good run time off of it. I connect the tank tho the car via some long clear hose.

[Rockbrick]

what a "decent run time" 15-20mins?

[jesse66058]

Once a while i had a simple goal to make a gas powered boat with a team. If i translate right: baking powder and lemon juice create a sufficient gas. An 0,33cl plastic soda-bottle filled with 1/8 baking powder and 1/8 lemon juice. It was enough to make a simple replica of the engine as the SYS I3 run for about 5 seconds. With the ideal concentrations should be experimented, anyhow it was more a fun than a high-grade experiment. :P

[nicjasno]

O lol... the V8 wasn't mounted properly, was it? :P

[Jullian_pdx]

For my 8x8 LPE Trial Truck, I'm using a 5 gallon portable air tank that I got for $20 charged to 65 psi. I can get a good run time off of it. I connect the tank tho the car via some long clear hose.

I was thinking for a remote - portable solution.

[1nxtmonster]

I was thinking for a remote - portable solution.

Like a C02 tank and regulator?