How to add new engine data

To add engines to SpaceCAD, all you need to do is drag and drop your engine database file (.eng) on SpaceCAD’s main form.

  1. Open the folder with the engine database
  2. Click the engine database file and move it over SpaceCAD.
  3. Let it drop.
  4. SpaceCAD confirms the engines that you have added.
  5. Finished! Now you can use them in SpaceCAD to design your rockets.

If you can not see them in the engine selection dialog, this might be because they are filtered by diameter and might not fit into your selected tube.

Drag and drop engines Confirmation dialog

How to extend SpaceCAD’s material database

Please consult this tutorial (PDF) on how to add new material to SpaceCAD.

How to enter weight manually

Please consult this tutorial (PDF) on how to enter an element’s weight directly instead of having it computed by SpaceCAD.

How to enter your license

To turn your trial version of SpaceCAD in a fully registered version, please make sure that you have both your

  • Registration / Serial Number Name (your name)
  • Registration Key (Serial Number)

If no name is given (this is the case for site licenses or boxed versions), just enter the Serial Number (license key) and leave the name field empty.

The best way to do this is to copy and paste the information from your registration email. You can find the registration key under “registration information“. Please scroll to the “Order Item Details” (see image).

Serial number email screenshot

Here’s how to enter your licensing information: Start SpaceCAD – and the Reminder window appears. Or, go to Help -> Enter Registration Key. Then, enter your name (Serial Number Name) exactly as it appears in the registration e-mail. Copy/Paste the key (Serial Number) from your registration e-mail. Then click on “OK”.

Serial number entry screenshot

It is very important that the key is exactly the same as in the registration e-mail. If you get an error message like “Invalid key”, please try again.

How to install SpaceCAD unattended

You can install SpaceCAD unattended. SpaceCAD uses the InnoSetup installer that offers these options - see link.

Entering a key can be done by adding a spacecad.ini file in the same directory, and with the same base name. This should include a [License] section with a Key=, value. If this entry is in the INI file, SpaceCAD will try to silently enter the name and key you specify here when the program starts up. If it is successful, this line is removed from the INI file; if not, it is ignored. The comma between the name and key is optional, you can use a space instead if you wish. Both the name and the key are still limited to 255 characters apiece.

Here’s a sample [License] section in a spacecad.ini file:

Key=John Miller, 1234-5678