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See transfer platform

See transfer platform

Introduction

This is a ship with a self stabilizing platform. It allows the crew to easily transfer to e.g. an oil platform, even during rough weather. This video was my inspiration.

It made it with Lego Mindstorms 4 Robot Invertor. However, I had to add two extra parts 32293 Black Technic, Link 1 x 9 from my Mindstorms NXT.

For fun, I also added some minifigs, but those are less crucial for the built 😀.

Steps

The below steps only give you the platform. You can built the entire ship with the mindstorms 4 box (but not the rig). Also, as mentioned, there are two crucial extra parts 32293 Black Technic, Link 1 x 9.

1. The plaform

Step 1.01 The pivot of the platform...
step 1.01

Step 1.02 ... assembled.
step 1.02

Step 1.03 Extending the pivot of the platform ...
step 1.03

Step 1.04 ... assembled.
step 1.04

Step 1.05 Making the platform square ...
step 1.05

Step 1.06 ... assembled.
step 1.06

Step 1.07 A sub assembly for the platform pillar ...
step 1.07

Step 1.08 ... assembled ...
step 1.08

Step 1.09 ... and connecting the pillar to the platform.
step 1.09

Step 1.10 Platform ready.
step 1.10

2. The base

Step 2.01 The motor holders bracket ...
step 2.01

Step 2.02 ... assembled.
step 2.02

Step 2.03 Adding the other brackets ...
step 2.03

Step 2.04 ... and two large frames ...
step 2.04

Step 2.05 completes the base.
step 2.05

Step 2.06 Add the hub ...
step 2.06

Step 2.07 ... with two pins for wire clips.
step 2.07

Step 2.08 Base ready.
step 2.08

3. The pitch motor

Step 3.01 The pitch motor with wire clip ...
step 3.01

Step 3.02 ... assembled ...
step 3.02

Step 3.03 ... and arm adjusted.
step 3.03

Step 3.04 The pitch motor ...
step 3.04

Step 3.05 ... mounting on frame ...
step 3.05

Step 3.06 ... and wire clip fixed.
step 3.06

4. The roll motor

Step 4.01 The roll motor with two wire clips ...
step 4.01

Step 4.02 ... assembled ...
step 4.02

Step 4.03 ... and arm adjusted.
step 4.03

Step 4.04 The roll motor ...
step 4.04

Step 4.05 ... mounting on frame ...
step 4.05

Step 4.06 ... and wire clips fixed.
step 4.06

Assembly

Step 5.01 Adding the platform ...
step 5.01

Step 5.02 ... by attaching the platform pillar to the roll motor ...
step 5.02

Step 5.03 ... rotating the motor arms and attaching the links to the platform.
step 5.03

Ship

You can built the entire ship with the mindstorms 4 box (and some minifigs). But I did not make instructions. Here are some pictures from different angles.

Ship side 1

Ship side 2

Ship side 3

Ship side 4

Ship side 5

Ship side 6

Ship side 7

Ship side 8

Ship side 9

Rig

Here is the ship with an oil rig. For this you need extra lego.

Ship with rig

Software

In the directory prog you find the file that you can open in the mindstorms app.

This program is writte in Python. For the reader's convenience I have included the Python source. I hope to keep them in sync!

(end)