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General 50-200R - tapered cuts when cutting wider tha 12 inches

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Forum topic by jazzman12 posted 12-03-2012 02:31 AM 1137 views 0 times favorited 6 replies Add to Favorites Watch
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jazzman12

5 posts in 1462 days


12-03-2012 02:31 AM

Topic tags/keywords: general 50-200r table saw setup problems t fence

I have General 50-200R which I bought new march 2011 – Nice saw so I thought – 1st thing I noticed after a short time was the fence would not stay setup – it kept moving , the more you tightened the top bolt on the aluminum Chanel it would crush it and come loose. Ok I knew it was a cheap fence so ordered a the general T fence, installed it and voila , set it up ad straight cuts , but here’s the thing never cut any wide stuff until lately , when finally had some time to organize my shop and build some cabinates. the 1st one wasn’t all that great , a little out of square. Chalked it up to my in-experience, 2nd one was better but i noticed that I had trouble getting the drawers square. Thought maybe my shop built sled was out , was a little sloppy, made new runner and set up dead on,

Noticed my T-fence was ok 8 or 10 inches from the blade but started to go wide at the back of the table the further away from the blade I go.
the last 2 days I set miter slot to the blade , T-fence to the mitre slot, on the right side of the blade it was off by at least a 1/16”
Both miter slots are dead on , the front edge of the table is not square to the miter slot , so of course the further out the fence goes from the blade it would vary. So I take the fence rail and square it up to the miter slot, if I cut a piece of plywood 20 ” wide , it will be tapered. the fence is 20” from the miter slot at the front and 20 1/16” at the back.

I have planed on starting to build my kitchen cabinates this month , but can’t with a saw like this

I really don’t know what to try next. If I can’t get this fixed , Do I have an expensive piece of junk on my hands.

Darrell


6 replies so far

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Loren

8295 posts in 3108 days


#1 posted 12-03-2012 02:42 AM

Sounds like you have blade “heel”. It is adjusted by loosening
the trunnion bolts.

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jazzman12

5 posts in 1462 days


#2 posted 12-03-2012 03:15 AM

the blade is within .002 in from the miter slot

View Loren's profile

Loren

8295 posts in 3108 days


#3 posted 12-03-2012 03:24 AM

Think. This is simple geometry. Square the front fence
rail to the miter slot then. If then the fence T itself
is square to the rail, then the fence face will be parallel
to the miter slot at all positions.

Check the front fence rail for warp too.

Incidentally, operator feeding variables in cabinet
work on table saws using rip fences with no
hold-in jigs often results in variations in panel
width of 1/16” or more. The trick is to choose
a front edge to the panel and crosscut both
ends using that edge as a reference. Then
errors are thrust to the rear edge of the panels
where they won’t show. Crosscuts compound
errors so any panel will be a trapezoid or
parallelogram by a little bit, but using the same
reference edge (which makes for a trapezoid)
still pushes inconsistencies in panel width to the
back or the carcase.

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jazzman12

5 posts in 1462 days


#4 posted 12-03-2012 10:33 AM

Been at this for a whole day , will have another go at it tonight after work, I should be able to cut a 20×20 piece almost perfectly square, or perfectly square , that’s my goal. At least the saw should give me the opportunity to do that. A 1/16 is a lot to be off on a piece that small. Thanks , will try again and post my comment.

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knotscott

7208 posts in 2836 days


#5 posted 12-03-2012 10:43 AM

If the blade is parallel to the fence, either the front fence rail is warped, or the fence is flexing at the exit of the cut. As Loren suggested, check the front rail. If the rail is straight, try tightening the adjusters that snug the fence to the rail a little bit. Also be sure, the clamp is engaged fully when you lock it down.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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jazzman12

5 posts in 1462 days


#6 posted 12-12-2012 12:30 AM

thanks folks , lots of good info , very much appreciated, started from scratch , miter slot to the blade , fence to the blade, fence rail square to the blade and voila , noticed that I was not clamping my general T-fence down hard enough , the darn thing was moving at the .

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