How to Use LDD(Lego Digital Designer)




About: I'm a virtual aviator.

Lego Digital Designer is a nice piece of software used to make virtual Lego models. The software is designed and made by Lego, so there is no problems.There are three modes.These would be further explained in this Instructable, which I'll do.

Step 1: The Palette Select Menu

This menu comes up when you start LDD.This menu is where you select which mode to use. They all omit certain pieces though.(For example,do not expect bricks in the Mindstorms mode.)


The Factory Mode

This mode allows you to check how much your model would cost in reality. I also think that you can buy it as a kit,but I am not so sure about that. I will check it.

The Mindstorms Mode

This mode gives you the limitation of the parts that make up one NXT kit. You can make a robot.I made a robotic trike. As the name clearly indicates, mindstorming should make a good robot.

The Creator Mode

This mode contains the parts that are in Creator kits. The name is a good choice,again. I like this mode. I don't know why.

Step 2: The Brick Palette and the Toolbox

These are the most important parts of LDD.They contain the parts and tools. The Brick Palette has useful filters.If you want to make lots of the same part,I suggest the Clone Tool.


This is where you get parts.You can get as much parts as you want. The parts are organized in groups.

The Components Of The Brick Palette

The Collapse Dividers Button

This button makes all open groups close. Useful and saves you a lot of scrolling.

The Hide Colors Button

This button hides same pieces with different colors.You get to pick the color when you mouse over the part.(see picture)

The Box Filter Button

This button brings up a menu which you pick a kit,and it limits you to the parts of that kit. Sometimes useful.

The Color Filter

Filters parts by color. Simple.

Remove Filter Button

This button removes all filters, including the mode limitations.I press this before starting.

Step 3: More Modes! Isn't This Overwhelming?

Here we will focus on the View,Build and Building Guide modes.They are useful,as you guessed.The build mode is where you build your model(:P).Then you can go to the view mode which puts your model on a background.The build guide mode makes an animated guide on how to build your model.You place bricks by clicking them in the brick palette.


Build Mode

This is where you make your model.

View Mode

You can watch your model and blow it up.Don't worry,it heals back up.If you made a train,you can animate it.(The train and tracks are under robotics.)

Building Guide Mode

This generates an animated guide on building your model.You can make it HTML too,but that doesn't work for me.

Step 4: Camera Controls

These controls are very useful. Especially when you need to change the angle of view.This is very simple,except one thing. The controls are reversed. Right makes left,and vice versa.Up makes down,and vice versa.Plus zooms in,and minus zooms out.

Step 5: Finally,the Toolbox!

This is the last important aspect of LDD.This is where your tools go.It can be minimized like the Brick Palette.


Select Tool

This tool selects objects. :) When you click it,it also gives you options.I like the Group Select for moving large groups.

Clone Tool

Makes an exact copy of your piece.Then you place the copy like a brick taken from the Palette.You can multiple select by dragging the mouse.Anything completely inside the box it draws will be copied,and have a cyan border while dragging.

Hinge Tool

Turns your piece with any piece solidly attached to it.For example,you can hinge a Technic piece if it is attached to another with one snap or axle.It turns the other piece if they are attached with two snaps or axles.

Paint Tool

Changes the color of a piece,if possible.

Delete Button

Removes pieces from the model.

Step 6: Wrap-up

Here,I told you how to use LDD.I think this program should be owned by every Lego fan who can't buy any.This is not full LDD,it takes experience. Ask me via comments or PM if you have problems.I prefer comments because then other people with the same problem can learn the solution. I will also accept PM's.



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    42 Discussions


    1 year ago

    How do I place a piece on top of another piece if there is nowhere to snap it?


    Reply 2 years ago

    up and down arrow keys


    Hi there, is there an easier way to find the pieces of the el3ctric guitar? It is taking me forever to find the pieces


    2 years ago

    Good software, however, I cannot turn things (angled)... plz help


    2 years ago

    Group doesn't work.

    I have tried: Edit/Group and Ctrl-G.



    3 years ago

    It Says i need admin password. .


    3 years ago

    How do Ichange color in lego digital disgner 4.3


    3 years ago

    How do you put the tacks on. specifically on the LEGO DIGITAL DESIGNER


    6 years ago on Step 1

    I've got issue in trying to make the gears interact with each other...
    I got them rotating individually, but when it comes to one gear rotating the other gear next to it, it does not work for me, the gear just keeps rotating and the other is idle.
    How can I get this to work?


    8 years ago on Introduction

    I am building a scale model of the Lockheed Martin SR-71A Blackbird and I am having difficulties because of the size of my project, especially if I build sections and then try to put them together. Any suggestions of things that might make it easier?

    DJ Radio

    10 years ago on Introduction

    I used to have this program, but it was lost due to my system restore. Im an old lego fanboy, but im a knex convert. The best thing that could happen in the toy world is if lego and knex merge to form a super-company that could do anything.

    2 replies
    ReptiliarDJ Radio

    Reply 8 years ago on Introduction

    They do its called "Knex Brick" its in most of the newer sets! So now Lego bricks and Knex pieces can be made into one creation!

    DJ RadioReptiliar

    Reply 8 years ago on Introduction

    That's just knex stealing a design from lego and drilling holes in the bricks to make it different.


    10 years ago on Introduction

    I have always found this program sluggish, even on a maxed out new computer. With hardly any processes.

    3 replies

    Reply 8 years ago on Introduction

    Its slow because it supposively helps you place pieces easier in tight or small spaces so you don't jet it out of place!


    Reply 10 years ago on Introduction

    Works on my laptop with about 100mb of ram.It ran slow on that one,but it was near to max performance.