Deprecated
This was something I did as a quick fix for myself, but I've since moved onto https://mods.factorio.com/mod/blueprint-sandboxes in my games. There is now a more recent fork of this mod here: https://mods.factorio.com/mod/BlueprintLab_Henriquelay
The factory must grow.
Enter your lab to design your blueprints
Adds a way to enter a blueprints lab so you have a test bench for your blueprints. There is unlimited item creators so you can test the build with ores and such, and free items to place your blueprints directly on the lab.
This is a quickfix typo correction to fix the crash when leaving the editor with something in your cursor. No other changes made, no updated planned.
Known issues:
The mod is incompatible with the use of the sandbox scenario : the player does not exist in the game and when you try to enter the lab it will cause an error.
The mod is incompatible with the usage of the ingame command /editor : if you try to enter the lab with the editor enabled you will get an error because the player gets removed. If you use the command from inside, any terrain tiles that you add wont get removed.
The mod is incompatible with the Brave New World Scenario: same problem as above. https://mods.factorio.com/mod/brave-new-world
The lab now prevents players from using the gui if there is no "body" on the player like on /editor and the Brave New World Scenario": so it does not crash the game, thanks to minno for the fix.
The lab may interfere with the Lazy Bastard achievement by "crafting" items by hand.
There is another alternative, the edit blueprint mod made one of the devs: https://mods.factorio.com/mod/Edit-Blueprints that uses the ingame /editor command as a base.
Thanks to them for keeping the mod alive:
https://mods.factorio.com/mod/TheBlueprintLab_bud
https://mods.factorio.com/mod/BlueprintLab_Bud17
https://mods.factorio.com/mod/BlueprintLab_Bud18
https://mods.factorio.com/mod/BlueprintLab_Credomane
https://mods.factorio.com/mod/BlueprintLab_design
With the help of https://mods.factorio.com/user/minno we are mantaining the mod now! Thanks to him also!