Hi
The last some hours I've been trying to undestand the program. After maybe 10 or 20 minutes I'm being logged out, nothing was saved and I need to start from scratch. Saving is awkward as it appears to only upload to my library and editing from there seems not intended. Also my system is german and I have absolutely no clue what most of the german translations mean. And I can't find a way to change my language to english. IE is on en_gb, en.
Halp! Pleeeez!
I trust you've watched the video tutorial at: bikecad.ca/welcome. Beyond that, since BikeCAD serves so many different purposes, without knowing what you're trying to do, it's tough to direct you to a particular tutorial. However, there's lots of info in the FAQ.
Once you've saved a design to your account, you can open it later on by clicking the Open model in BikeCAD link as described at: bikecad.ca/launching.
For info on changing the language see: bikecad.ca/changing_language_in_free_version.
Let me know if you have any other questions.