That sounds frustrating and strange. When you normally move the up/down, has the router been on or off? Off. I will try it w/ it on and see what happens.
I hear stories of interference with the encoder from the router power wire being too close to the z axis signal wire.
Could it be a feedback problem? Perhaps you could reverify your connections are plugged all the way in. Double and triple checked.
Does it plunge and cut, then retract and just never plunge again? It seemed to, more like it was retracting and then going to cut height, only since the directions were inverted, it went down, then up and acted like it was cutting.
Is your z axis skipping teeth? No
Is it belt driven or direct drive? Belt driven - Metal Max
Is your router orange holder thingy snapped in? Huh? Makita Router, fastened tightly, bit in firm and tight.
Is your router binding during movement? No bit spins freely
Are you using a bungee? No, Pulleys and counterweights.
Have you stood on one foot and hopped doing the hokey pokey and turned yourself about? Just kidding. Yes. Also burnt offerings (forgot to take the burgers off the grill)
It sounds like the router is moving and then binding but in the absence of more information, I can’t be sure. What is your safe retraction/ travel height set at?
Have you downloaded the log… (or can you in groundcontrol - Maslow is moving to webcontrol and I’m way more familiar with that software than groundcontrol)
I didn’t download the log, I’ll check it.
Perhaps a few things to check and try. Do post back if you find the silver bullet.
thank you for the quick response.