CS70 Precisio Table Saw

[stevekis]

Hi guys,

I am hoping that someone may be able to shed some light on this situation for me.

I recently purchased a CS70 table saw for breaking down white face melamine and white face MDF, and occasionally timber veneer sheet goods.  Unfortunately, I have not been able to achieve a clean cut to both sides of the board.  The side that is fed through face up is always clean, but the side that is face down is disgusting - there's no other way to put it.  I have spoken to Festool Australia tech support, and our rep, and we have purchased several different blades - which has cost me hundreds of dollars - and each time, the result seems to get worse, as far as the face down side is concerned.  To be clear, the face up side has never been an issue, always a nice clean cut.

Interestingly, when I cut bevels for mitre joins, the tear out/splintering drops substantially - almost non existent.

I have attached a couple of photos of the one piece of material for reference.

Would love to solve this issue real soon as it is slowing our productivity down to unacceptable levels.

Cheers,
Steve

 

[DJW]

Are you using green splinter guard?

 

[stevekis]

Hi DJW, yes I am.

 

[chrisrosenb]

What how many teeth does the blade have? Fewer teeth mean a worse cut, more teeth means a better cut.

How high is the top of the blade above the sheet? The higher the blade is, the more chipping you will get on the bottom, the lower the blade is, you will get less chipping on the bottom.

Is the chipping on both sides of the cut on the bottom?  If the chipping is on just one side, then the blade may not be parallel to the fence.

It could also be a problem with the board. The moisture content of the core may be to low, making the core very brittle.

 

[alkaline]

Oh. At first I apologized for my words. Your choice for this work is no good. Festool has no chain saw for a clean cut into melamine. The only solution in categhory power tools is this video.


But not good for everyday use too. Sorry. [sad]

 

[AlexThePalex]

I saw this post and tried some things out with my own CS70. Though I doubt I can help you if you can't work it out with your Festool rep, because they should know much more about this than me. 

I made some test cuts on my 10 year old saw, but I get good results when I use the green zero clearance insert. When I don't use it, the bottom is a frayed and not that good. Mind you, I used the standard 32T blade and it was not that sharp anymore because it's been heavily used the last month, though only on soft wood. My experience with the standard blade and melamine is that it cuts very well on both sides when it is sharp, even without the zero clearance insert, but that it dulls quickly because of the melamine and then the cuts get worse.

Here's a picture of the topside of the cut, with zero clearance insert. Mind you, the cut is the line 2 cm to the left, I put the two sides back together again. I also had to raise the blade fully or it would not engage the green insert.

[attachimg=1]

Bottom side of the cut.

[attachimg=2]

And for comparison the bottom side of the cut without zero clearance insert.

[attachimg=3]

 

[Holmz]

Oh.

Does "Ponorná píla" really translate to English as "tool porn"?

 

[alkaline]

Oh.

Does "Ponorná píla" really translate to English as "tool porn"?

...maybe earlier plunge saw ?

 

[alkaline]

I'd like to offer a solution for today. One possibility is cut with 1-2mm owersize and next using router or planer for clean edge.  [attachimg=1]

 

[Xoncention]

I'd like to offer a solution for today. One possibility is cut with 1-2mm owersize and next using router or planer for clean edge.  [attachimg=1]

That is some pretty savage tear out.  Nice cleanup solution.

 

[bryan1982]

Hi

you prpcess needs to be broken down to figure out if its the saw or technic .

try ripping a smaller piece about 1000mm long by 100mm with the melamine blade.

possible  issues with original cut are binding on the back of the blade (board tension ) board lifting off the saw and not flat on table

rip fence out of alignment  causing the binding.

are you trying  to cut a full 2400 rip on this saw?
the saw is to small for this and if so sheets should be broken down with a ts55 then you could put them through the saw

hope this helps

cheers 

bryan

 

[stevekis]

Hi guys, thanks for all your responses. Just to give you all an update, I was in touch with my Festool rep and after making some adjustments and running some test cuts himself, he was not satisfied, even though there was a huge improvement. So the saw is off to Festool in Melbourne to be recalibrated, as the rep has suggested the cuts should have no tear out.