i can appreciate what they’re trying to do in terms of simplicity and openness, but:
“Joseph has also granted you full access to this Glowforge printer, so you can return the favor and invite others to use it. Remember, they’ll be able to print to it invite other users as well, so be careful who you add.”
i still find that striking. i assume it’s probably mostly because it was easier for them to get this going this way and that they can add more granular permissions as time permits.
it’s not a concern for me because i don’t expect to need to share access very often, but still.
The sole link in the email directs me towards link.glowforge.com with a UPN and a ton of variables included. That link 404s.
I tried app.glowforge.com which redirects me to the second _noglowforge URL in your second screen shot. From there, I can access settings, including printers associated with the account (which is empty).
I just added myself (different email address) and it all worked. Followed the link, created my account, went to the App and was signed in as my new user. Could touch designs and seemed to be functional. I’m not at home so can’t go the whole route but I didn’t get any 404 or other issues.
I haven’t tried using a secondary email to create a new account. If their is an issue with associating existing accounts to another Glowforge, I think that should get pinned down. Regarding Joe’s initial post - I think the other user, who didn’t have a previous account, has been squared away. So perhaps some kind of permissions issue with an existing account that hasn’t received a unit yet?
So, when I got home from work this evening, I asked my wife to rescind my invitation then re-invite me, and it worked. I can access our Glowforge from my account now.
… I was hoping that it would give you the option to accept the invite 
