@Alfie *****
no, there is no limit, as long as you behave like a tourist you can enter many times, but a real tourist will not do a borderrun.
A real tourist will not stay 60 days at a single location, then go to the border, and return as soon as possible to the previous location.
That kind of behaviour will attract attention of the IO sooner or later.
But staying a few weeks in Thailand, then some time in another country, get back in Thailand for some time and that repeated will normally not give problems, even when you repeat this more than 2 times in a few months.