Multicam MG305 - X-Axis Bind

[ScottMJ]

Hi all, this is my first thread so bear with me..

I am in the process of doing some machine maintenance on my Multicam MG105** Nested Based Router, and have hit a slight roadblock. I am trying to get the X-Axis zeroed back in, so I went through the process that my predecessor had written out. Needless to say, it didn't work, or I wouldn't be here. The bearing cars keep binding up on the rail during high-speed traverses, and I am unsure of how to fix it. I've had to figure out everything as I go, which has been easy enough so far.. until now.

So if anybody has any help, it's greatly appreciated. I'm going to go tinker around with it, and check back here.. sometime later.

Thanks,
Scott

[Boltz]

Hi, I also have an MG series.

If it's like mine, you have a rack and pinion drive on the x-axis. To check for binding you can disconnect the electrical on both motors, then unbolt and remove them. the motor is mounted on a plate held in place by 4 screws.

With the motors off, you can then move the gantry by hand to check for binding.

Unfortunately, they didn't spring load the pinions, and the profile guide rails are mounted directly to the rack, so as the wear on the rails progresses, you get to a point where when you tighten the pinion enough to take the backlash out in the "heavy traffic" area, it then binds when the gantry goes to a place with hardly any wear.

My machine spent most of it's previous life running about 5 kinds of speaker cabinets, and it's looking like I might have to put some fresh rails and trucks on.

Good luck, and keep us posted!

-Jim Hart

[MCPservice]

Your most likely needs to be gantry just needs to be squared...here is the process....if you try this...and it doesn't work the 1st time...try it once more...if at that point it does not work..you could have a mechanical issue, giv e me a call....Chris
678-548-1483

Loosen all bolts that attach the gantry onto the bearing cars, should be 4 bolts on each car, loosen until you can turn the bolt by hand. 16 bolts total/ maybe 8 bolts depends on the machine.

Now that you have loosen the bolts. the gantry can now pivot a
little.

Have the machine find home. shift key green0/0

After it finds home

tighten one bolt on one side of the machine, then walk to the other side and tighten the diagonal opposite, just like you were tightening a tire.

You have now tighten 2 bolts

Move the gantry back a couple of inches.

Find home again and repeat the process.

You have now tighten 4 bolts.

Move the gantry back again.

Find home again

This time tighten all the remaining bolts.

It should be square at this point, easy way to check after you have found home, put your hand on the gantry....and hit E-stop, if the gantry is not square you will feel the gantry kick.

i know it kind of long....but I hope this will help.