Just curious because I have no idea. I've never been inside a union machine shop. The shops I used to visit were all small mom-and-pop operations run by grizzled older guys. Is the apprentice to journeyman path only within the trade unions or is it something practiced outside of unions?
Ive seen it both inside and out.
I served mine in a union shop attached to a large production facility and for me it was good and bad.
Good as I was only bound to the same rules as everyone else in the plant, and at times I might not have made it if it were a traditional shop.
Bad as some of the elitist snobs I apprenticed under constantly gave me ****, as somehow with their great expansive knowledge of all things worldly, could somehow tell me I would have never made it in the shops they apprenticed under.
They really didn't like it when I pointed out they had to do their apprenticeships in bits and pieces in different shops as they got fired a couple times.
These guys thought they were hurting me, but in reality they were only making me stronger as an individual.
The reality of apprenticing in a job shop type environment is you will likely fail a few times before you even learn enough to become a decent apprentice. If the shop is operating marginally they will want you up to speed in 6 months and work you like a dog until your proficient, then continue to work you like a dog until youre good enough that you can leave to go to another shop.
If it is a good profitable shop that wants to build you up to becoming a ....whatever, you will likely go through phases.
You would start out for 6 months sweeping floors and being a gofer just to see if you can show up on time and keep your fingers out of the works. Then you will spend 6 months on the bandsaw cutting stock to size, then 6 months on the drill press drilling holes where they tell you, and on and on until you can do most shop functions on your own.
At this point (2nd-3rd year) you will likely be handed the most god awful set of prints you could imagine (This may happen more than once) just so the shop owner can gauge your progress.
Sometimes tuition is repaid after you progress through the different semesters, and some shops make you pay this yourself.