Author Topic: Loose as a Goose Dominos  (Read 985 times)

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Offline deepcreek

  • Posts: 730
    • TimberFire Studio
Loose as a Goose Dominos
« on: November 07, 2018, 10:07 PM »
I just completed a Walnut countertop glue up using my Domino 700 to mortise for forty-four 10x100 tenons.

Unfortunately, they all came out loose as a goose.

What's going on here???

I tested some 10x100's from another box along with some 10x50's and 10x80's.  They were all loose so it has to be oversized mortises.

I measured the holes at 10.38mm.

I've cut hundreds of domino mortises with my 500 and never had them come out this loose.

Any thoughts?

Thanks!

Joe
Joe Adams
TimberFire Studio
Houston, Texas

http://www.facebook.com/timberfire

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Offline greg mann

  • Posts: 1840
Re: Loose as a Goose Dominos
« Reply #1 on: November 07, 2018, 10:24 PM »
Check to make sure your cutter is mounted cleanly. If there is any debris in the contact area it will run out and cut oversized.
Greg Mann
Oakland, Michigan

Offline jobsworth

  • Posts: 5271
  • Does Anyone Know What Time It Is?
Re: Loose as a Goose Dominos
« Reply #2 on: November 07, 2018, 10:28 PM »
How was your mortising technique?
 If you plunge to fast you will end up with larger mortises.

Offline grbmds

  • Posts: 1809
Re: Loose as a Goose Dominos
« Reply #3 on: November 07, 2018, 11:30 PM »
I know that you've done many before, but I've never had a problem of Dominos loose in the mortises that wasn't due to some failing of technique on my part. For me, the Domino never fails; only I do. Usually, when they are loose, it's because the Domino machine moved slightly while cutting mortises.
Randy

Offline tjbnwi

  • Posts: 5733
  • Cedar Tucky Indiana
Re: Loose as a Goose Dominos
« Reply #4 on: November 07, 2018, 11:35 PM »
My 700 cuts the mortices tight.

How's the dust extraction? Walnut is soft compared to most woods, maybe an extraction problem.

Tom

Offline Cheese

  • Posts: 5065
Re: Loose as a Goose Dominos
« Reply #5 on: November 08, 2018, 12:04 AM »
In a spare piece of walnut, try cutting 1 Domino mortise at a time.  Then trial fit the Domino and attempt to figure out what the problem is.  It may just be as simple as how you’re holding the Domino tool or how fast you’re plunging it.

I recently fabricated a walnut countertop and using a DF 500, I used both standard beech? Dominos and some custom made aluminum Dominos. Both fit incredibly tight. That’s a good thing.  [big grin]

Offline sprior

  • Posts: 411
Re: Loose as a Goose Dominos
« Reply #6 on: November 08, 2018, 12:54 AM »
some custom made aluminum Dominos. Both fit incredibly tight. That’s a good thing.  [big grin]

You didn't think you were going to mention that and not have someone request a photo and explanation, did you???   [eek]

Online Gregor

  • Posts: 1019
Re: Loose as a Goose Dominos
« Reply #7 on: November 08, 2018, 04:44 AM »
Try a different cutter bit (10mm if you have a spare, different size if not) and see if you end up with per-spec mortices, possibly the bit is slightly bent (giving it a bigger rotating diameter).

Offline Cheese

  • Posts: 5065
Re: Loose as a Goose Dominos
« Reply #8 on: November 09, 2018, 10:03 AM »
You didn't think you were going to mention that and not have someone request a photo and explanation, did you???   [eek]

Hey @sprior , here ya go.  [smile]

I built a walnut countertop that needed to fit between two support posts so the rear of the countertop had to be removable. This project was before Festool released their new D 8/50 connectors.

The Dominos were fabbed from 10mm x 20mm aluminum flat stock, with chamfered corners and 3 holes drilled on each edge to "key" them into the mortise when they were filled with epoxy. It was a time consuming process, however it worked well.


Offline sprior

  • Posts: 411
Re: Loose as a Goose Dominos
« Reply #9 on: November 09, 2018, 11:02 AM »
You didn't think you were going to mention that and not have someone request a photo and explanation, did you???   [eek]

Hey @sprior , here ya go.  [smile]

I built a walnut countertop that needed to fit between two support posts so the rear of the countertop had to be removable. This project was before Festool released their new D 8/50 connectors.



Nice work, looks great!