Author Topic: How to cut miters on Kapex  (Read 1237 times)

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Offline Intex

  • Posts: 95
How to cut miters on Kapex
« on: January 29, 2019, 11:16 AM »
If I need to cut miters on 1/2" walnut stock, approx 2.5" - 3" high, Is it best to put the stock vertically on the miter saw and cut at a 45 degree angle, or  , place the wood flat on the miter saw, and angle the saw blade 45 degrees off vertical to cut the miter ?

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Offline neilc

  • Posts: 2746
Re: How to cut miters on Kapex
« Reply #1 on: January 29, 2019, 11:30 AM »
You can do either.

When you tilt the saw you COULD get some deflection due to motor weight.  I personally like to make to cut these cuts with the wood upright rather than flat.  Easier for me to rotate the saw than tilt it since tilting usually means moving the fence due to clearance.

Try both and check with an accurate bevel gauge. 

Offline RKA

  • Posts: 1751
Re: How to cut miters on Kapex
« Reply #2 on: January 29, 2019, 11:57 AM »
For longer stock I tend to cut it flat on the table and bevel the saw.  This allows me to use the clamp to secure the stock flat to the table.  The excess just hangs off the table and any additional support can be set slightly lower than the saw table (the slight bow in the stock is insignificant as long as the part on the table is flat against the table itself) without ill effect.  My use case here is baseboard molding, where I've got a 12-16ft length hanging off the left side of the saw table.  If you cut that standing up against the fence, you have to provide support for the stock that's dead level with the saw table. 

For a small piece that I could hold flat to the fence and table safely, I would prefer Neil's method. 
-Raj

Offline jobsworth

  • Posts: 5838
  • Festool Baby.....
Re: How to cut miters on Kapex
« Reply #3 on: January 29, 2019, 12:13 PM »
I lay the stock flat, use the Kapex clamp, even then push the stock against the fence, pull the saw fwd remember its not a chop saw its a sliding compund saw, and  make your cuts very slow and stand in front of the saw when you make your cut

Offline Intex

  • Posts: 95
Re: How to cut miters on Kapex
« Reply #4 on: January 29, 2019, 12:16 PM »
Thank you, I will try the upright method and then check!

Offline Peter Parfitt

  • Magazine/Blog Author
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    • New Brit Workshop on YouTube
Re: How to cut miters on Kapex
« Reply #5 on: January 29, 2019, 12:29 PM »
I cut a lot of mitres for box work and always have the stock flat. Technically, if your Kapex is set up perfectly then either method will work but the most consistent approach for me has always been with the stock flat. It is easier (IMHO) to keep the flat stock stable during the cut than it is to do it with it thin side down and sticking up - I know the rear fence should sort this out but I still prefer to rely on the bed of the machine.

Less than 30 minutes ago I cut some mahogany to surround the top of a new (small) bench and I used this method. If anyone has seen my Workshop Notes #22 video then they will have seen the perfect mitres on the portable MFT size bench that I made and these mitres were on 140 mm wide stock.

Peter

Offline ChuckM

  • Posts: 1229
Re: How to cut miters on Kapex
« Reply #6 on: January 29, 2019, 12:35 PM »
Unless the stock when stood upright exceeds the cutting limit of the saw, I would have the stock held vertically because it is easier to line up the cutline (with the saw teeth or laser). If the stock is too tall to use the hold-down, I can clamp the stock against the fence. Only in a few times did I lay the stock flat and miter it like a bevel.

Offline Master Carpenter

  • Posts: 109
Re: How to cut miters on Kapex
« Reply #7 on: January 29, 2019, 06:24 PM »
I would cut with the piece standing up, up to the vertical capacity of the saw. Cutting flat will cause more blade deflection due to greater contact area between blade and wood (more noticeable with hard wood and less than sharp blades).

Offline Jiggy Joiner

  • Posts: 785
Re: How to cut miters on Kapex
« Reply #8 on: February 09, 2019, 04:22 AM »
Unless the stock when stood upright exceeds the cutting limit of the saw, I would have the stock held vertically because it is easier to line up the cutline (with the saw teeth or laser). If the stock is too tall to use the hold-down, I can clamp the stock against the fence. Only in a few times did I lay the stock flat and miter it like a bevel.

That’s my rule of thumb with any cross cut miter saw, my first option is nearly always to cut any angles vertically, if the height and shape of the stock allows. Otherwise I clamp flat and use the bevel cut, horizontally.
I also find compound miters easier with the stock laid and clamped flat, using the bevel cut.

I think as long as people keep the method safe, they should use whatever they’re comfortable with.

Offline Peter Parfitt

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Re: How to cut miters on Kapex
« Reply #9 on: February 09, 2019, 07:07 AM »
I have recently made a set of 6 drawers for the workshop. I used mitres cut on the Kapex. The method is so quick that you can assemble a drawer in less than 3 minutes and it does not require clamping whilst the glue goes off. The method is also very accurate.

Here is the video:



Peter

Offline tjbnwi

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  • Cedar Tucky Indiana
Re: How to cut miters on Kapex
« Reply #10 on: February 09, 2019, 09:59 AM »
If it is flat stock, set the saw for either a miter or a bevel. Flip the stock instead of moving the saw head.

Tom