Why do we still use trim routers?

[Michael_Melancon (Mike M)]

@barry99705

Someone here has a vevor on their lr3

Spindle RPM

I am running a 1.5kw air cooled Spindle on my Primo (and also on my LR3) I’m looking to see if its possible to tie RPM and On/Off control into Marlin on my SKR Pro 1.2. Or if i can hook up an additional small LCD screen that will display the RPM. My VFD doesnt give this information but from my understanding it will output it…but its all Chinese to me… Link to VFD… VFD Manual… I have tried googling but i just cant come up with the right question to ask or what to search for to get me to any…