Wrong file format :(

[Techno20]

I created a design in 123D Design. The STL prints fine on my Makerbot. Now I need to find a way to convert the .123dx to a STP. Any software around to do this? 

Or can anyone point me in the right direction? :) Turns out a guy wants to have the part manufactured as the prototype is selling...

Thanks,

Al

[JEgar]

Have a look at InStep (http://www.solveering.com/instep.htm ). converts STL to STP. free version is quite limited but unlocking isn't too expensive.

J

[DHeadrick]

It does... but it will create a very large file with thousands of tiny facets which are pretty useless.  I converted an STL to STEP and ended up only using that so that I could recreate the part from scratch.