unfortunately there is no precise rule. It depends on how much the cashmere gasket gives or how rigid it is. The increase can very well be from 1.40. The reamers must not be conical! You have to look for straight reamers. Difficult to find. Only experience will help you choose the right one, which will have the right friction "at the moment" and ...especially "over time"!!!!!!
If the work is correct, by locking the fork and taking the stylus with two fingers..the rod must not oscillate!!!!!!!
I don't want to be pedantic. Pin work is delicate work that requires experience and proper equipment. You cannot do a remote "do-it-yourself" course. Some things are good for the pianist to learn, because they can be done even without experience, but delicate interventions must be entrusted to an experienced technician. You will surely be good, but if you encounter difficulties, you should rely on someone. In this case, an extractor that extracts and inserts is needed. If the pin is as hard as you say (but I don't believe it, otherwise the hitch pin would be stuck)... then replacing the part must also be taken into consideration. It is impossible to tell from a distance.
Unfortunately due to commitments, I haven't had more time to respond and finish the work...
Anyway, I understood where the problem was
Fortunately, the pins were not having difficulty coming out of the forcole but from the hole in the wood which was a bit tight (for example, that of the upright)
Good evening. I will take advantage of this discussion to ask for information regarding the sanders from the shop ftppianoforti.com. Do they have an abrasive part or are they completely smooth?
I sent an email to the shop and they replied that they are completely smooth.