kapex accuracy/adjustment

Caly

Member
Joined
Jan 1, 2011
Messages
60
I am being humiliated by an old fixed head makita I gave to a colleague of mine..........& whats more by my old de walt i sold on ebay. They both mitre far more accurate than my kapex. So here I am Sunday 9.30 am, still here at12.15 trying to get the calibration re set, it is not easy.

So Questions.

1. does any one know of a fairly resonable way of making the adjustments. I know how to adjust, but every time tighned up it moves slightly.

2. Why haven't you, Festool put a fine adjustment on for the calibration, it could have so easily been included. :'(

Please a realistic answer, and dont answer if you are hung up on festool and can see no wrong or want to go into some crapy diatribe I dont have the patience.
There are some great articles on this forum and others who just think its their Sunday soap box ( thats diatribe for you)
 
 
Caly,

Welcome to the forum. It's always nice to have new members, especially UK members, but that's quite an agressive sounding first post! [scared]

Just so we all know, what method are you using for the adjustments now? Have you seen the Kapex Supplemental Manual? Calibration starts on page 24.

Hope that helps.
 
jonny round boy,

Hi And thank you for the reply.

Sorry if it sounds aggressive, really not an intention (but think the directness is a Yorkshire trait), hence complimenting the forum, however I read quite a few posts and some do go rather off tangent, I wasalso hungry the time. Found some Wensleydale cheese  so now feeling a lot better.

The manual, yes read it, but as i have found out there is no easy way to get it 100% accurate, so after the cheese on toast just persevered and kept cursing.

Believe I am 99.9% there.

Thanks again
 
Brice wrote a review of the Kapex...maybe that covers how to make this adjustment?
 
Rob Z said:
Brice wrote a review of the Kapex...maybe that covers how to make this adjustment?

No, I didn't cover calibration in the review.  My Kapex is pretty dialed in after spending some time adjusting it.  There's no secret, it just takes a little time. 
 
Caly said:
1. does any one know of a fairly resonable way of making the adjustments. I know how to adjust, but every time tighned up it moves slightly.

 

Don't loosen the screws very much and this won't be an issue.  You should have to tap the miter plate or saw head to get it to move (use a small block of wood and mallet) where you desire it to be.  Make very small changes and re-test. 
 
I think the perseverance & gently with the mallet seems to be the best method.

What brought me to present the question was working with foil wrapped cornice especially white which when cut was was infinitesimally out, but due to material looked way out, with solid oak this did not present a problem.

I would have preffered it to come out of the box exact but it didn't and would stilll stress that for all who have to adjust it could have been made easier by festool.

Caly
 
I know there is a website called This is Carpentry from Gary Katz and he shows how to adjust the Kapex. I have yet to see or hear of a Kapex that was adjusted accurately out of the box. Kinda bewildering at best but rest assured once set up it's a great saw.
 
Taos said:
I know there is a website called This is Carpentry from Gary Katz and he shows how to adjust the Kapex. I have yet to see or hear of a Kapex that was adjusted accurately out of the box. Kinda bewildering at best but rest assured once set up it's a great saw.

Mine was perfect out of the box. Only thing I messed with were the laser's.

I had my Kapex tuned up after a year of hard use and the service guys at Festool told me when they went to check the adjustment's, it was still right on.

Mine has a tendency to be treated like a red-headed stepchild at time's.
 
Caly, when I took mine apart and put it back together, I needed to calibrate the fence again.
I have a fairly large T-square, similar to a sheetrock square, not as big. I've checked it with my
machined setup squares and it's right on.
They way I do it, is with the fence supports off of course, is leave the four hex bolts loose. I put my square
in line with the blade path and use it to check the blade travel. Set that square to the path of the blade to where the
blade and square are in alignment while running the full length of the blade travel. I then set my fence to the square
on the T portion where it's flat to it. Then I use the two material hold downs (I purchase a second one) to gently hold the fence in place square
with the T-square and very similar to bolting on a head on an automobile engine, I gently tighten in sequence of inside to out,
checking the fence to make sure I do not move it while doing this, until the torque is mild enough to hold it in place but not fully tight yet. Then
again run the slide in and out to make sure it's still good and then in same sequence finish tightening the four hex bolts.
I've never liked using a hammering action to set things in place when it comes to calibrating. I've not always been comfortable that
the whole fence is moving correctly at the same time. It's possible to move one side, since there could be enough flex to offset the fence
similar to a planer bed being offset to plane.
This is just one method, my humble suggestion, it works easy for me, hope this might help.
Oh, btw.... I have used a clamp on the T-square to hold it in place as well, but it wasn't too hard to hold it in place while getting it squared
to the travel of the blade.

Jerry
 
Hi Gerry,

Thank you for your informed reply, and to everyone else.

I used the four cutting method for the square cut and think that is there now.

as to the mitres, I believe that the saw was not cutting square to the table, the adjustment of this is some what archaic, loosen the carriage bolts and tap one way or the other and keep checking, just so primitive for the festool school of thought.

caly
 
Caly said:
jonny round boy,

Hi And thank you for the reply.

Sorry if it sounds aggressive, really not an intention (but think the directness is a Yorkshire trait), hence complimenting the forum, however I read quite a few posts and some do go rather off tangent, I wasalso hungry the time. Found some Wensleydale cheese  so now feeling a lot better.

The manual, yes read it, but as i have found out there is no easy way to get it 100% accurate, so after the cheese on toast just persevered and kept cursing.

Believe I am 99.9% there.

6 hours later and I am 99.9 too. Wish I got one out of box at 100%

Thanks again
 
I also get a perfect 90 degree cut bracing the wood against the left fence and a non-90 degree cut using the right fence. Yet, when I put a straight edge across the left and right fences, they seem to be coplaner. I dont understand this anamaly!
 
Hi [member=10024]Caly[/member]

Once upon a time mine was near perfect out of the box but I hit it with a 6' long 5" square oak post that I had propped up and then had to get it right again.

I did use the excellent US Supplemental Manual but I did not mess around with the 5 cut test. Instead I did real cuts and took my 12" engineer's square to them. For fine adjustments I had the screws slightly lose (nipped but no more) and then tapped the mitre arm slightly with the plastic handle of a Pozi 2 screwdriver - in other woods, gently for each tap.

The bevel adjustment was not quite so easy but I have found that it stays square and rarely needs adjustment.

It was all a little time consuming but I got there in the end. I do re-check it from time to time normally just before doing special projects (desks etc).

I do not mean this to be a blatant plug but I can cut perfect 90, 30, 60 and 45 degree (mitred) cross cuts that always beat my Kapex using my TS55 on the custom MFT3 top that I created with the Parf Guide System. What I can't do using that setup is a really accurate bevel cut as the TS55 bevel adjustment is not up to it.

Good luck with the adjustments.

Peter
 
Caly's problem was reported more than 7 years ago. I doubt if he still has those adjustment issues.
 
[member=41421]Peter[/member] Parfit,

"I do not mean this to be a blatant plug but I can cut perfect 90, 30, 60 and 45 degree (mitred) cross cuts that always beat my Kapex using my TS55 on the custom MFT3 top that I created with the Parf Guide System. What I can't do using that setup is a really accurate bevel cut as the TS55 bevel adjustment is not up to it."

me to.

Im thinking its the Kapex extension wings i use. I use the old style ones. Maybe I can use them without the crown stops and theyll hold their adj better
 
If the blade is not parallel to the rails it is hard to get perfect cuts. Check the kapex to see if blade is parallel to the slides.
 
I noticed that my Kapex was not in calibration anymore.  The Bevel angle at 90 was off and so was the miter at 90.  The miter adjustment is simple and you can easily use feeler gauges to get it dead on.  The Bevel angle is extremely difficult to adjust.  It took be two different attempts on 2 different days each attempt was about a 6 hour back and forth session of it getting better and worse  with it until I was finally just settled with it at -0.25 degrees out.  At which point I was figure it was good enough.  If I need it dead on, I can manually adjusted to be dead on.  Which I did and it will be good until I need to cut something at a bevel angle.

What is shocking is that even Festool Technical Service offers no tips or recommendations on how to setup/callibrate the bevel ange.
I've always consider Festool to be a company that provide high quality service and support and value to their customers.  There is more details in the supplemental manual than the Festool service person knew.  He didn't even suggests the supplemental manual.
He said that I can send it back to Festool to have them fix it for me, but he couldn't give me even an estimate of what calibrating the Kapex would cost.
 
SnowOwl50 said:
I noticed that my Kapex was not in calibration anymore.  The Bevel angle at 90 was off and so was the miter at 90.  The miter adjustment is simple and you can easily use feeler gauges to get it dead on.  The Bevel angle is extremely difficult to adjust.  It took be two different attempts on 2 different days each attempt was about a 6 hour back and forth session of it getting better and worse  with it until I was finally just settled with it at -0.25 degrees out.  At which point I was figure it was good enough.  If I need it dead on, I can manually adjusted to be dead on.  Which I did and it will be good until I need to cut something at a bevel angle.

What is shocking is that even Festool Technical Service offers no tips or recommendations on how to setup/callibrate the bevel ange.
I've always consider Festool to be a company that provide high quality service and support and value to their customers.  There is more details in the supplemental manual than the Festool service person knew.  He didn't even suggests the supplemental manual.
He said that I can send it back to Festool to have them fix it for me, but he couldn't give me even an estimate of what calibrating the Kapex would cost.

[member=20991]SnowOwl50[/member]

Get the US Supplemental Manual - it is excellent and can be downloaded from a link somewhere on the top line I think.

Peter
 
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