The 3d printer and some other devices do require training before you can use them. This is in part to keep the tool safe but also to keep you safe. For example if you approach a table saw with the attitude of whats the worst that can happen you will likely leave the table saw scratching your head with the stump that was once your hand 😉
We hold work weekends about once a month, they are announced on discord and the mailing list as is what equipment training will be on offer. A contribution for the training is made to the maintainer and they will generally take out their expenses and put the rest back into the space.
In the case of the 3D printer if you ask on discord if anyone is avaliable to do training you may find someone who is coming in and willing to put their project on hold while they induct you.
Many tools don't need induction, if you sign into the main site there is a page on the menu called access or something similar which will list the devices that need training and show you which of them you have been rated for already.
When work days occur you register your place for the training on the wiki page for the tool. To edit the wiki you need to create a wiki account this is seperate to your HS login or discord account but you may use the same login and password if you wish too.
Kind regards
Ant