whine when lowering router

[bgrooms]

Just got the Mako and got it set up this weekend. Got all the drivers and software installed and decided to hook it up tonight to jog the steppers around. I noticed a hum from the steppers at idle, but from reading another post out here, that is normal. However, when I lower the router, there is a horrible whine the last 3 inches of travel. It seems like it is coming from the threaded rod that the stepper motor turns lower the router, because if I put my finger on that threaded rod, the whine stops or is at least drastically reduced. Has anyone else experienced this?

[tonydude]

You're going to need to lubricate it with silicone spray and that should take care of it. Try it and let us know.

Tony

[BobA]

BGrooms and Tony,

I have had my Mako for a couple of weeks. I replaced my Shark Pro Plus with the Mako. There is noise that the Pro Plus did not have. I use Teflon Silicone lubricant religiously. I believe that the strange noise comes from the stationary plastic support blocks under the shafts rubbing as the axis moves. The lubricant helps but the noise is still there.

Bob

[JoDy]

I have had my HD since July and I get the whine on the down axis as well. I have to give it a shot of Silicone lubricant at least once a week and the noise goes away. I only get the whine on the down movement not up movement.