I know this is a bit obscure as most people these days use computers but holding out hope....
I'm clueless looking for recommendations for a smallish (A3 ideally or smaller) portable parallel drawing board with an adjustable angle. This type of thing:
https://justcreative.com/best-drafting-tables/
I really just want it to rule parallel lines and lines at right angles to each other for very precise drafting.
So the most important thing is that the parallel ruler is accurate and stays parallel at at right angles to the vertical and locked in place.
I don't know much about this but I understand that this can be a big issue with the mechanisms that hold the ruler parallel failing, moving askew or breaking/ coming detached.
Has anyone got a board they would recommend that is accurate and reliable from the fixings point of view?