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ECAD Part Wizard


Save time on your design with the new ECAD Part Wizard from SamacSys.

ECAD Part Wizard (EPW) gives you access to a wide range of high-quality, ready-to-use electronic CAD models, giving you the advantages of rapid design-in and fewer PCB errors resulting in a shorter time-to-market for your latest product design. 


Why should I use ECAD Part Wizard?

This great new tool gives you:

  • Complete control of symbol fracturing, including the number of fractures to be created and the ability to preview them instantly
  • User control over symbol pin positions (left, right, top, bottom) and pin order for each fracture
  • Layout footprints that are IPC compliant and include the nominal, least and maximum variants
  • Import of selected parametric data for your components
  • Export in to popular ECAD tool formats including Mentor Graphics, Altium, Zuken, Cadence and DesignSpark PCB
  • Ability to request creation of a specific model

And it’s all completely FREE!

Using ECAD Part Wizard is simple:

1. Download and install the EPW tool (you will need MS Excel 2007 or higher)

2. Search and download your component (if it’s not there simply request it within the tool and we will add it for you)




  3.  Fracture the symbol (if required)

 4.  Export the symbol & footprint to your preferred ECAD tool (we recommend using DesignSpark PCB but the choice is yours)

How do I request a part that is not available in the library?

Requesting a new part couldn’t be simpler, just select the button and enter the details and we shall create it for you.


Download EPW Tool

 *Please note you will need MS Excel 2007 or higher to use this tool*


Geek, Blogger, Gadget Junkie, Crisp Junkie, Technology Evangelist. ***If you meet me, ask me for the Pete and Greet Badge code.*** DesignSpark Team twitter - @petenwood


1 Votes

July 7, 2017 15:30

Hello, i've installed ECAD Part Wizard 1v89 32-bit Excel, however i'm cant work with the software, each time i try to open a file or find a part or perform any other action the software sends me the message: Unable to access the internet! Note: This may be due to proxy or firewall settings. If so, please whitelist "https//", I already make changes in firewall but i still have this problem. can you guys help me?? thanks in advance.


July 8, 2017 11:09

@luisss749 Thank you for trying to use our ECAD Part Wizard software! Did you try already PCB Part Library as well already? Regarding your technical issue - please raise the question via our support page: by using "Submit a request" button.


July 8, 2017 11:01

@wgiergus Hello how are you, i already send a request to the support page to solve this problem with ecad part wizard, also i already have downloaded some parts from SamacSys search engine, (*.epw files), but now i have no idea how to load this to dspcb, i've seen a youtube video wich shows how to do that but requires to get the ECAD software working, can you give me some advice to solve this??? Best, Luis Salazar

0 Votes
RS Components Support

March 24, 2017 10:17

Please raise any support issues via the "Submit a request" button which is available on the support page

@focusrsh using the download link on the URL for the Library Loader download in our tests results in a 396KB zip file containing the msi and Readme link which I just confirmed.
Support have also confirmed that the issue has not been reported previously, however please contact them providing the downloaded file and any other details to resolve your reported issue.

@bodnandi, please also send as much information as possible and support will work to resolve your ECAD issue.

NOTE. For the fastest possible solution to any issues please submit a request to support with full details and screen captures illustrating your experience.

0 Votes

March 23, 2017 11:06

Does anyone at DesignSpark bother to test if their programs work or even run?! The advise was to go to and download the Library Loader. What downloads is a 488 byte file named It is NOT a zip file and can't be opened. Jeez, what a steaming load of cr...garbage... this software is.

0 Votes

March 23, 2017 11:02

Hi I get an error when trying to export to pads. It says: Microsoft Visual Basic; Run-time error '429': ActiveX component can't create object - any help, please? Please see png attached as well.

0 Votes

February 20, 2017 10:49

Once again I've got the same problem everyone else has, has anyone found a solution? I am running the official 8.0 version of ds, so I'm sure its not that.
Also how do I export a component from here I hit the ECAD button and after clicking design spark it won't let me go any further

0 Votes

February 20, 2017 10:47

Same problem here, DesignSpark 8.0 & Library Loader not connecting.
My system is Windows 7 ultimate 64 bit.
Is it because I am running as a user and don't have relevant permissions to save data etc?
I need a solution to this please!

0 Votes

February 20, 2017 10:46

Reminder for users who do not like to use Excel for requesting symbols/footprints – please try our new solution ‘PCB Part library’ available already from ‘Our Software’ website:
Users who experienced problem with DSPCB - ‘PCB Part library’ collaboration - please reinstall DSPCB beta version to available already official 8.0.
If there is still a problem – please raise the ticket in our support page.
I wish you successfully accomplished designs – sped up by our new free symbols/footprints solution!

0 Votes

February 20, 2017 10:46

Same problem here, DesignSpark 8.0 & Library Loader not connecting.
My system is Windows 7 ultimate 64 bit.
Also I have Eagle 7 installed and the connection with Library loader is Fine.

0 Votes

February 7, 2017 13:18

I have identical issues as Jed-UK2 after installing Designspark 8.0 & Library Loader 2.02. My HP Laptop is also running Win10 and giving the same error messages as Jed-UK2. Are we missing out on any basic setup process after installation?

0 Votes

February 7, 2017 11:27

I've installed Designspark 8.0 & Library Loader 2.02, and I get the same problem as zhivko. If I launch Library loader first and then press 'Settings' Designspark launches OK but library loader then throws an error "Unable to launch/connect to DesignSpark PCB" please check installation, and try again.". The PC is running Win10, hard re-boots don't make any difference. Operating System is on an SSD, application software is on another drive, paths were edited to suit on install. Any suggestions? I abandoned DS 6.0 because of library issues, I'm trying to give DS 8.0 a decent chance before I uninstall it in frustration......

0 Votes

February 7, 2017 13:17

Can you make it work with Desinspark PCB 8 beta? On Settings and 8Beta installed I get "Unable to launch/connect to DesignSpark PCB" please check installation, and try again." error

0 Votes

January 19, 2017 13:42

Hi Everyone,

We have listened to your feedback and we're pleased to say that you can access our high quality Schematic Symbols and PCB Footprints without MS Excel.

You can get started here:

We support all the leading ECAD formats including Eagle, Altium, Zuken, Mentor Graphics, Cadence and more.

EPW is designed to help engineers quickly fracture a schematic symbol into smaller blocks when space on a sheet is a limiting factor, it is still a fantastic solution for this challenge. For those that just want fast, free access to libraries the link above is for you :-)


0 Votes

January 9, 2017 16:05

I can't get it to work with Excel for Mac.

I wish they'd just give us Eagle Libraries. Eagle works on everything.

0 Votes

January 3, 2017 09:40

How do I install this download ?. It seems to be a zip file with a pdf and a couple of .ex_ files. These look like they're compressed files, but they dont uncompress properly.

0 Votes

December 23, 2016 07:23

Quite useless to me as it requires MS Excel. I use OpenOffice and have no intention of buying Microsoft's overpriced products simply to use DesignSpark I'll find something else.

RS Components Support

September 1, 2017 15:30

@j_m_williams and @NuttyProfessor47 There are two methods of accessing the PCB Part Library. 1. Using the ECAD Part Wizard which this article refers to. It's main use is for high pin count parts where you can configure the schematic to meet your design requirements. This requires Microsoft Excel to allow the configuration process. 2. Using Library Loader for direct access to the component. This is our replacement tool for the obsolete ModelSource tool. This does not require any additional Microsoft applications and installs the component directly in your library and allows direct placement of the component into your design. provides details.


September 1, 2017 15:39

Same issue. I gave up MS software wherever possible years ago and have no intention of going back. With this and LibraryLoader not working I think I'll have to ditch DesignSpark PCB. @j_m_williams


September 1, 2017 15:39

@NuttyProfessor47 If you can't get Library Loader working have you contacted support. This link appeared recently Which may help. I have been using Library Loader for months and it's a great modern resource and doesn't require MS Excel or anything, just works nicely.

0 Votes

December 20, 2016 16:55

I have MSOffice 2013 32bit and doesn't start

0 Votes

November 14, 2016 12:18

RAJensen - Please see comment on Nov 2nd from - wgiergus

0 Votes

November 14, 2016 10:32

Completly useless if you have OpenOffice4.1.2

0 Votes

November 11, 2016 15:49

pcbjohn34 have you tried Library Loader? It is by far the best thing I have used. Watch this vid: you can download the models even from technical references on the RS website.

0 Votes

November 14, 2016 10:31

While this is a step in the right direction, it is nowhere near as easy to use as other tools like SnapEDA ( or PCB Libraries ( Also, is it only for Windows?

0 Votes

November 2, 2016 11:06

Thank you wgiergus. I will keep checking back.

0 Votes

November 2, 2016 11:06

We understand that some customers would prefer to work with libraries that do not require the use of Excel. We have recognised this and developed a solution that will launch within the next 2 months. We will of course keep you updated with these developments.

0 Votes

October 24, 2016 09:35

Funny that - I was just about to ask the same question. I use OpenOffice Calc for sreadsheets

0 Votes

October 24, 2016 09:35

Am I forced to use MS Office?