Author Topic: Can I cut thicker material with Kapex 120 in 2 steps?  (Read 564 times)

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Offline jardako

  • Posts: 5
Hello, I'm considering buying Kapex 120. But it has a serious limitation, only 88mm cut depth (or 120mm, but just for thin pieces).
Is it possible to cut something thicker, e.g. 120 x 120 in two steps? E.g. cut it from one side, then reverse it and cut from the other side?


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Offline kevinculle

  • Posts: 333
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #1 on: Yesterday at 08:13 AM »
No, the cut thickness limitation on an SCMS is that the sliding head can't pass over the workpiece because of interference with the top of the workpiece, so those are hard limts.

Offline jardako

  • Posts: 5
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #2 on: Yesterday at 08:29 AM »
Thank you for the answer. Really there is no way to cut something thicker? That's sad :-(

Offline kevinculle

  • Posts: 333
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #3 on: Yesterday at 11:46 AM »
The SCMS is a highly specialized tool developed primarily for length cutoffs of construction stock and moldings with precise control of both the cut and bevel angles.  Its design inherently limits material thickness capacity as both the sliding housing and the blade axis must clear the top of the material being cut.  For cutting thicker stock with similar capabilities a large capacity radial arm saw with a 14" to 16" blade would be one option.

Offline ear3

  • Posts: 4043
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #4 on: Yesterday at 11:51 AM »
Super Sawsquatch or beam saw would do the trick.
Kapex KS 120 w/UG Cart and Extensions • CXS Set • T18+3 w/Centrotec Installer's Set • PDC 18/4 • TS 75 • TSC 55 • HKC 55 w/250, 420 and 670 FSK rails • Carvex 420 w/Accessory Kit • Domino 500 Set • Domino 700 XL • OF 2200 w/Base Accessory Kit • OF 1400 • OF 1010 • MFK 700 EQ Set • LR 32 • MFS 400 w/2000, 1000, and 700 extensions • Rotex 90 • Rotex 150 • LS 130 • ETS-EC 150/5 • ETS-EC 150/3 • Pro 5 LTD • RTS 400 • RAS 115.04 • RS 2 • HL 850 • Vecturo OS 400 • AGC 18-115 • CT 26 w/BT module • CT Sys w/Long-Life Bag • MFT/3

Offline Birdhunter

  • Posts: 3051
  • Woodworker, Sportsman, Retired
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #5 on: Yesterday at 01:40 PM »
Would a jigsaw work? I have a great handsaw that I use for really thick cuts. Good aerobic exercise.
Birdhunter

Offline jardako

  • Posts: 5
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #6 on: Today at 02:12 AM »
Hi guys, please can someone try it? I know there are other types of saw.

But I'd like to have this one and my business case is a pergola. Looking at the videos on youtube, I really do not understand why it would not be possible to put let's say 120x120 timber to the middle of the base and just cut it from the top, then reverse it and finish the cut. The saw starts cutting earlier than it reaches the initial depth for 88mm and there is nothing in the way.

Online MikeGE

  • Posts: 78
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #7 on: Today at 03:53 AM »
Why don't you take a sample of what you want to cut to your nearest Festool showroom and give it a try for yourself?

Offline jardako

  • Posts: 5
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #8 on: Today at 04:44 AM »
Why don't you take a sample of what you want to cut to your nearest Festool showroom and give it a try for yourself?

Yes, I can do it (they are a bit faraway) or I can ask them. Just thought I would get an answer here ...

Offline Frank-Jan

  • Posts: 1079
  • Dutch Canadian living in Belgium
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #9 on: Today at 06:41 AM »
I remember doing it years ago, I don't remember the size (if it was 120x120 or 145x145) I do remember we had to slide it out from underneath the sawhead to flip it. (I just checked if I had any cutoffs lying around to test it for you, but I can't find any)

Offline Birdhunter

  • Posts: 3051
  • Woodworker, Sportsman, Retired
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #10 on: Today at 07:01 AM »
If you actually can do a flip over cut using the Kapex, please be sure to not have any flex in the lumber that could pinch the saw blade. Take the cut slowly and feel/hear the saw starting to bog down. That usually precedes a kick back.

Let the saw completely come to a full stop before lifting or retracting the saw's head. Don't put any lateral pressure on the saw's handle while cutting as that will cause kick back.

Good Luck!
Birdhunter

Offline ear3

  • Posts: 4043
Re: Can I cut thicker material with Kapex 120 in 2 steps?
« Reply #11 on: Today at 09:01 AM »
This would be the main concern for me.

please be sure to not have any flex in the lumber that could pinch the saw blade. Take the cut slowly and feel/hear the saw starting to bog down. That usually precedes a kick back.


Sure, the cut you describe is theoretically possible, though you may have to remove the dust shroud first.  But if the timber you're working with is not already perfectly straight, it will not result in a square end, and more critically (particularly if you're cutting more than just a few inches off the end) it will start to bind as you make the cut and possibly kick back something awful.

If you still want to try, make sure to lay down the timber so that any bowing is positioned relative to the fence (along the y axis), rather than relative to the saw bed (along the z axis).  Do an initial two-step cut a mm or two proud of the final length, and then do a finishing cut to remove the final mm so that you can cancel out the deflection that was created by the bowing. 

And engaging the hold down clamp would also be highly recommended.
Kapex KS 120 w/UG Cart and Extensions • CXS Set • T18+3 w/Centrotec Installer's Set • PDC 18/4 • TS 75 • TSC 55 • HKC 55 w/250, 420 and 670 FSK rails • Carvex 420 w/Accessory Kit • Domino 500 Set • Domino 700 XL • OF 2200 w/Base Accessory Kit • OF 1400 • OF 1010 • MFK 700 EQ Set • LR 32 • MFS 400 w/2000, 1000, and 700 extensions • Rotex 90 • Rotex 150 • LS 130 • ETS-EC 150/5 • ETS-EC 150/3 • Pro 5 LTD • RTS 400 • RAS 115.04 • RS 2 • HL 850 • Vecturo OS 400 • AGC 18-115 • CT 26 w/BT module • CT Sys w/Long-Life Bag • MFT/3