Author Topic: Festool Domino miter joining question  (Read 1005 times)

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Offline acd683

  • Posts: 2
Festool Domino miter joining question
« on: February 20, 2020, 03:16 PM »
Hi all,

Trying something new this weekend and don't want to risk messing up my stock. I am joining 3/4" stock at a 45 degree miter using the 5 X 19 X 30mm tenons. I have the DF 500. Will I be able to accomplish this without going through the stock? Any settings I should know about? I am having trouble finding info online. Thanks in advance for any guidance.

Adam
« Last Edit: February 20, 2020, 03:31 PM by acd683 »

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Offline ChuckM

  • Posts: 1544
Re: Festool Domino miter joining question
« Reply #1 on: February 20, 2020, 04:01 PM »
Absolutely no problem as long as your mortises are milled close to the inside edges of the joint. How close? See the sample photo I took. The stock was 25mm thick (1" or so); so yours should be at least something like that. Place an actual domino on the side of the mitred edge at 15mm mark, and you can see how close you want the mortises milled.

Practice it on some  3/4" scraps to verify your machine is properly set.
« Last Edit: February 20, 2020, 04:33 PM by ChuckM »

Offline acd683

  • Posts: 2
Re: Festool Domino miter joining question
« Reply #2 on: February 20, 2020, 05:29 PM »
Thanks for this Chuck. Will definitely do some testing first!

Offline PaulMarcel

  • Posts: 1490
    • Voilà, my blog
Re: Festool Domino miter joining question
« Reply #3 on: February 20, 2020, 06:18 PM »
Assuming you are boring with the 15mm setting, the center of the mortise will be 16mm (the bit swings so 15 on the edges, 16 in the middle).

The cut edge of the 45º miter of a 3/4" board is 1.06" (27mm). 5mm thick Dominos means you'll want the center of the Domino at most 7.5mm from the inside edge of the joint. Remember that the height setting gauge is only accurate for the fence tipped down 90º. At 45º, the height gauge's "10mm" setting is really 13.5mm. That 3.5mm difference is regardless of the height setting (it has to do with where the hinge is located... 5mm in from the milled face). So you'd need a height setting of 4mm, which the fence doesn't do. You'll want a shim board taped to the fence face to compensate.

Sorry for all the crazy numbers  [blink]
Visit my blog for Festool adventures
IG: @PaulMarcel328

Offline Birdhunter

  • Posts: 2886
  • Woodworker, Sportsman, Retired
Re: Festool Domino miter joining question
« Reply #4 on: February 20, 2020, 06:34 PM »
I tried with little success to do mitered joint using the 45 degree Domino fence setting. The mortise was often off just enough to throw off the joint.

I built a simple jig so I could use the 90 degree fence setting. Worked great.
Birdhunter

Offline ChuckM

  • Posts: 1544
Re: Festool Domino miter joining question
« Reply #5 on: February 20, 2020, 07:21 PM »
Made a few mitre cuts in the shop and then used the DJ with the standard mitre setting & 5x30mm domino, and here are the results. Adam - Make sure the fence bottoms out when you set the fence to 45* (4th pic).

P.S. Not a promo, but all mitres were cut on the Kapex. Previously with my Dewalt, the success rate with dead-on mitres was unpredictable. 
« Last Edit: February 20, 2020, 07:32 PM by ChuckM »

Offline StevoWevo

  • Posts: 44
Re: Festool Domino miter joining question
« Reply #6 on: March 26, 2020, 05:39 PM »
I’m pretty sure if set correctly the machine will do what you want. Here’s my first festool project where all bevels are cut with the track saw and joined with just dominoes and glue.


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Offline Michael Kellough

  • Posts: 4620
Re: Festool Domino miter joining question
« Reply #7 on: March 26, 2020, 09:17 PM »
@StevoWevo   this looks interesting. I’d like to see more/better pictures if you have them.

Offline Rick Herrick

  • Posts: 97
Re: Festool Domino miter joining question
« Reply #8 on: March 26, 2020, 11:33 PM »
@StevoWevo   this looks interesting. I’d like to see more/better pictures if you have them.

Me too.  Steve, If you could make them a little bigger, that would be great.. [cool]

Offline StevoWevo

  • Posts: 44
Re: Festool Domino miter joining question
« Reply #9 on: March 30, 2020, 05:27 AM »
I thought you guys would be chuckling behind your keyboards when I posted it 😂 let me see i

Offline StevoWevo

  • Posts: 44
Re: Festool Domino miter joining question
« Reply #10 on: March 30, 2020, 05:36 AM »
That’s all I have at the moment. Wifey wanted shelves under the TV that “look like big chunks of wood “I’m up for anything that hides the dam wires. I made a cleat to hold it to the wall with some pieces of 1/2” all-thread.

Offline VirTERM

  • Posts: 91
Re: Festool Domino miter joining question
« Reply #11 on: March 30, 2020, 06:59 AM »
I dont recall if i used 4mm or 5mm in this project