Lift Off

I spent a little while this weekend making a compressed air rocket launcher. I’ve had a stomp rocket for quite a while but this was something that I used to have but lost in time gone by. So, for about a year or so I’ve been thinking of making a new one. The first of these I created after a week’s training at the Kennedy Space Centre in Florida. There I got simple plans and used them with parts that I suspect I carried on a motorbike although how I got the tubing home I don’t know. There are photos of this somewhere, but I’ve had a quick look and couldn’t find them.

Here are most of the bits I bought.

Some Plumbing Bits
Some Plumbing Bits

These need to be put together using the compression joints.

Elbow Joint
Elbow Joint

The trickiest part of this build is drilling the end plate so that the car tyre valve fits it snuggly. Once you’ve spent a little time you get this wonderment:

Not Quite Finished
Not Quite Finished

Once the tyre valve is fitted you get a beast that looks like this:

Launcher Ready
Launcher Ready

I don’t have any video yet, I will endeavour to get some ready and will add it to this page or my YouTube area.

I pumped the tube up to about 4 Bar and then opened the gas tap. I reckon I got about 5 seconds of flight time. I’m happy with that. I don’t really want to increase the pressure too much because I don’t want the thing to blow itself apart and kill someone!

Lego 55 Model 60163

Last one this week in the mini-Lego season. A surfing scenario! Just in time for the release of Baywatch, which I shall not be reviewing.

60163
60163

Lego 53 Model 75132

Here we go with a Star Wars Lego kit. Just a mini one really and not worth building. It seems that the Lego people have been designing “scenes” rather than models that can create story. As an example here’s the Death Of Darth Maul Lego scene.

75132
75132

Lego 52 Model 76062

In the continuing mini-series of Lego season here we have a couple of superheroes:

76062
76062

This is Robin and Kane (?).

I’ve been corrected. It is Bane. I would embed the tweet but it’s protected so can’t.

Lego 51 Model 76076

It’s a mini Lego season at the moment. Here’s 76076:

Marvel Stuff
Marvel Stuff

The wings on the aeroplane sweep forwards for more manoeuvrability and lower landing speed.

Wings!
Wings!

Lego 46 Model 42055

Now, the final communication. Here’s the bucket wheel working:

Here’s the machine turning the bucket arm:

Moving forward:

And general operation:

Overall this was great fun and very relaxing. Hour for hour entertainment it was about the same as watching an IMAX film.

Lego 46 Model 42055 Part 10

This is the final push. The operators cab and safety railings is built. Along with adding lights and ladders this now completes the Bucket Wheel Excavator.

Model Complete!
Model Complete!

This was probably another hour and a half so total build time is roughly 11 hours. I would argue it was worth every penny.

Some detail photos for you now:

Operator's Cab
Operator’s Cab
Buckets
Buckets
Power Unit and Gear Box
Power Unit and Gear Box
Ready To Dig
Ready To Dig

Lego 46 Model 42055 Part 9

This part of the Bucket Wheel Excavator is to build the power section. This includes a motor, battery pack and the gearing system to turn on and off different drives.

Motor Unit and Gear Box
Motor Unit and Gear Box

This was another hour after a few mistakes were made! Then I had to connect it to the main bucket wheel arm.

Bucket Wheel Arm
Bucket Wheel Arm

A top view:

Bucket Wheel Arm with Motor and Gear Box
Bucket Wheel Arm with Motor and Gear Box

Then this arm had to be connected to the main body.

Initial Mating
Initial Mating

Then the bucket arm was secured and the top superstructure was built.

Top Superstructure Now Included
Top Superstructure Now Included

Current total time: 9 hr 15 mins