TS75 met it's limitations last night. advice

stairman

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Sep 29, 2011
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I've been working nights all week on a buildout for a Professional Office.  The Receptionist Desk has a "bar-top" counter which I made from 5/4 White Oak milled into a 1-1/8" x 12" finished dimension.  all processing was done on shop machinery + glue-up was done in my clamp rack and is totally sound, so that isn't the problem...

when I attempt to make the miter cuts to join the bartop at a 90deg corner,  I am getting substandard cut quality with my TS75.  there is simply too much deflection to even consider calling this a "joint"

as I am cutting along the guiderail (which is clamped on both ends)  I can hear and feel the deflection in the blade...  now,  if the Kapex had enough cut capacity,  it would make a clean miter joint, ready for Domino's!,  but my TS75 is just not "cutting it"!
I would like to know whether this is merely a limitation of the tool,  or if there is something WRONG with mine?
I am using a brand new 495380 blade, as this material is too thick for a general "crosscut" blade to cut without burning.
Incidentally, I am getting no burning with this blade,  it is just the random excessive runout.

for lack of a better way to describe it,  it feels like the blade encounters harder areas of the cut and "flexes" causing nasty "bite marks"  and a horrendous cut quality that is anything but smooth.

This material is no different than a Stair Tread,  which I install a LOT of...  and if there is something wrong with this saw, I need to get it fixed NOW, before the next job.

as for this one miter joint,  I dressed the joint up with a shooting board and a hand plane,  then Domino'd it together,  done deal... 

Something else I am noticing (which doesn't seem right) 
my TS75 seems to cut too close to the guiderail.
in fact, I am surprised the deflection in my bar top cuts last night didn't make contact with the aluminum! (it didn't, but the splinterguard is within a gnat'sass of the guiderail where the deflection was at it's worst...

how close should the kerf be to the actual guiderail itself?
with my TS55, there was about 1mm -1.5mm of splinterguard left.  but once I made the first pass with the TS75,  -there is almost NOsplinterguard protrusion now!

are there a list of SPECS & TOLERANCES for Festool tools anywhere?  surely there are prescribed minima for these tools that Festool technicians would use to gauge whether a tool passes or fails,  right?
would be really nice to know that!

thanks for any help, suggestions or advice on what to do with my TS75.
Something doesn't seem right here,  and hopefully it is something that can be easily rectified.
 
as far as i know the distance doesnt matter as long as the toe in sttings etc are right. i would guess that those settings are wrong or loose and wrecking the cut. the suplimentry manuals show you how to set those
 
Alan's suggestions are good.  You may want to give Festool a call tomorrow and try to talk to one of the service guys.

Peter
 
And you can set up multiple saws to run on the same gude rails again this info is in the supimentry manuals (i think)
 
Try running the same cut in steps, just set it a bit deeper every cut..
I think i would do it in 3 runs..

Whenever i'm ripping a hardwoord door edge, and my ts55
With w48 blade doesnt cut it, i just make 2 passes.. Then a bit
of sanding! Awesome, clean as everything else!
 
supplementary manual?  ???  Evidently I am CLUELESS about this!  where do I find a supplementary manual?

 
after the tune-up,  my Ts75 is cutting TREMENDOUSLY better.  I should note that this saw was not purchased BRAND NEW from a dealer,  but off eBay.  the saw was certainly new enough,  but obviously it had been monkeyfd with by someone, as the tune-up process made an enormous difference. 
I have heard a few comments about the TS75 not cutting as clean as the TS55.  -deflection, runout, whatever...   
well,  I have a different hypothesis.

I suspect it may have to do with the TYPE of user that buys a TS75 over the 55...  perhaps the status quo TS75 operator is more likely to push the tool harder, or unnecessarily adjust the tool moreso than the average TS55 operator ???
the previous owner of my 75 obviously did some screwball adjustments without ever understanding or reading the comprehensive  manual in the link from Shane...
after following the proper setup procedure, mine cuts splendidly,  and since I have some more of the WH. Oak glue-ups,  I gave that miter joint a 2nd try with the saw after setting it correctly, and a perfect joint -the first try was the result.

If YOU have either saw and it isn't makinging glue line quality cuts,  take the time to go through the manual and set your saw back to original specs,  and it WILL.    for that matter,  ANY Festool that you have to go back and perform hand dressing of a joint or edge...  -something is awry.  Festools don't work like that.
and that should have been the 1st indication for me last week.

anyway.

thanks to all for the help!
 
ShawnRussell said:
Shane Holland said:

Is there a link where we can get all the supplemental manuals?

Probably ...

But a hint to find stuff ... using google, put this in as the search string ...

site:www.festoolusa.com/media filetype:pdf

"site:" restricts the search to the part of the site you specify

"filetype:" only returns links for the type of file you specify

 
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