Help with a bad cut on my mft3 table

[redrider]

    I'm cross cutting plywood on my mft3 table for base cabinets sides. I use my woodpecker 16 x 26 square to square up my table....I drew the line across my ply...my rail lined up with my line....now here is the problem-i make my cross-cut and it is off 1/16 on the side that is against the fence.  What am i doing wrong?

 

[peter halle]

Is the cut parallel to the line or is the angle off?  Some more info might help.

Peter

 

[nerfball]

Make sure you slow your cut down enough. Let the saw cut, don't force it.

Overall 1/16 out of square isn't gonna hurt too bad one the cabinets are installed.

I would recommend practicing on some scrap tho

 

[redrider]

angle off...it seems find from the start of the cut...the last 6 in is where it starts?

 

[erock]

When you place the rail down and have the tab on the front, under the guide rail.....does the guide rail move left to right?

You may have slop in the tab and the rail ? ?

If so, you may have to adjust the front tab. 

If you've used a Woodpecker square to square up the fence and rail, had the splinter guard on the rail line up with the work piece, the only thing I can think of at the moment is that you have slop between the rail and front tab.

Eric

 

[sancho57]

Check the rail.

 

[hitandruntz]

Make sure your saw is adjusted to the rail.
When you were making your rip cuts did you use parallel guides or a table saw? Are your rip cuts parallel? I had this same issue  and my parts weren't  square cause of my rips not being parallel. I was pushing on my long rail during my rip cuts and flexing the rail.

 

[mouppe]

You may need to move your splinterguard over and recut it as it may not follow the blade of your saw any more, so when you line it up with your pencil line, you are off.

 

[ear3]

If it is a slop issue with the rail -- which you can easily check by trying to push the rail side to side, this can be fixed with the slop stop: http://toolimprovements.net/Slop-Stop_Tune_your_MFT.php.

Make sure too that the rail is the correct height when you cut.  Even if there's no slop when the tab is fully inserted, if it's set slightly high on the front end there will be some side to side play, as the tab on the bracket has an angled head.

If this is not the issue, then maybe do as others have suggested and reposition and cut the splinterguard so you are certain as to its straightness.

Also note that changing the height of the brackets can introduce some error if they are not locked down straight (parallel to floor).  You can guard against this by using scraps the same thickness as the workpiece at both front and/or back of rail when locking it down.

    I'm cross cutting plywood on my mft3 table for base cabinets sides. I use my woodpecker 16 x 26 square to square up my table....I drew the line across my ply...my rail lined up with my line....now here is the problem-i make my cross-cut and it is off 1/16 on the side that is against the fence.  What am i doing wrong?

 

[jplemons]

I had to make a slight adjustment to my stops when I first set up my table. I still check it each time I start a session.

 

[redrider]

Thanks for all of your comments.....i change the blade and things got better...i know I know what a dumb ass.