Introduction: How to Use LDD(Lego Digital Designer)

Picture of How to Use LDD(Lego Digital Designer)

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

Picture of 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

Picture of 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?

Picture of 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

Picture of 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!

Picture of 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

Picture of 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.


Rezzzinator (author)2017-07-29

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

DAA1 (author)2015-06-18

how do I make things turn at a 90 degree upright angle? HELP?

AllanT14 (author)DAA12017-01-22

up and down arrow keys

GUILLERMO_MONTEMAYOR (author)2017-01-17

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

AgentBubbly2016 (author)2017-01-12

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

sdebess (author)2017-01-07

Group doesn't work.

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


Josepsh (author)2016-04-02

It Says i need admin password. .

OscarT24 (author)2016-03-24

How do Ichange color in lego digital disgner 4.3

DUCKS17 (author)2016-03-14

How do you put the tacks on. specifically on the LEGO DIGITAL DESIGNER (author)2014-09-27

how do you make things go upwards????? (author)2014-09-27

how do you make things go upwards?????

khilo84 (author)2013-03-18

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?

Shadow13! (author)2010-11-05

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 (author)2008-12-22

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.

Reptiliar (author)DJ Radio2010-09-30

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 Radio (author)Reptiliar2010-09-30

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

puffyfluff (author)2008-12-04

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

Reptiliar (author)puffyfluff2010-09-30

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

knexfan9182 (author)puffyfluff2008-12-05

do you try to make really big stuff if so i have the same thing on a slow computer

Derin (author)knexfan91822008-12-05

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

knexfan9182 (author)Derin2008-12-06

yeah but thats all that it needs to run its that i have prplems with lagg when im making large models

puffyfluff (author)Derin2008-12-05


Derin (author)puffyfluff2008-12-05

? It works on me.

puffyfluff (author)Derin2008-12-05

No, it usually takes up 100% CPU after about five small bricks, and has to be killed at about ten. I have no idea why this happens, it even does this on a fresh install of XP.

Derin (author)puffyfluff2008-12-05

Try reinstalling it.It may have somehow corrupted.

puffyfluff (author)Derin2008-12-05

I've tried that before, the uninstaller crashed. It was really weird. I had to go through removing the files by hand.

Derin (author)puffyfluff2008-12-05

Corrupted install for sure.

puffyfluff (author)Derin2008-12-06

It happened after I redownloaded it and reinstalled it, too. It must just be my computer.

sheepborg (author)2009-08-31

i love ldd! i have unlimited resourses there!

super moderator (author)2009-06-05

Check this stuff out!

Derin (author)super moderator2009-06-07


super moderator (author)Derin2009-06-07


TOCO (author)2009-01-20

hey dj radio you can use knex and lego together. Knex made a new product in most new sets called knex brick. It can link together with legos. You could make a lego car and power it with a knex motor. I have some pieces. Now the possibilities are really endless.

cutting Matt (author)2008-12-24

i built a train layout and i cant find the little piece of lego that goes in the turnout. i searched the whole list and couldn't find it.

limlio (author)cutting Matt2009-01-04

I'm newbie with LDD. Can you give tips to start a Train layout... I can't figure it out. Thks

cutting Matt (author)limlio2009-01-04

-first remove all filters -you should find the tracks and the engine under the 18th tab (mindstorms) -you should find the wheels and the couplers (the things that join the train cars) under the 17th tab --most tracks will orient themselves to connect (if it doesnt try rotating) --i dont recommend trying to get two pieces of track to meet if they dont seem to be able to (see image). i tried for about 20 minutes, and then i just let them go off somewhere else

limlio (author)cutting Matt2009-01-04

thks !

cutting Matt (author)limlio2009-01-05

no problem

Derin (author)cutting Matt2009-01-04

Same here.I think that does not work in LDD.

cutting Matt (author)2008-12-19

you can order it as a kit and sometimes they might even turn your models into LEGO kits. I saw this in a old issue of LEGO magazine

Bongmaster (author)2008-12-04

think u might wanna check the link in the 1st step..

Derin (author)Bongmaster2008-12-05

Ah.I see.Must fix that.

About This Instructable




Bio: I'm a virtual aviator.
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