Have questions? Want advice?
I think for starters like me in 3d printing, it should be ok to make hardware designs for free. But for all those who have experiences already and can do good advice then they cannot make anything for free.
For me it's kinda strange to think that hardware can be free. I mean if one creates software, he spends resources once you developing it, after it has been created you can sell it copies unlimited times. But when one creates hardware, he has to spend resources to make each copy of hardware.