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Forum topic by DS posted 05-22-2019 11:09 PM 357 views 1 time favorited 9 replies Add to Favorites Watch
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DS

3163 posts in 2805 days


05-22-2019 11:09 PM

Topic tags/keywords: cnc miterfold trick milling modern

I’ve been wanting to do this for a long time. It took some doing and a LOT of Algebra.

This is a software construct, or “smart part” in Cabinetvision, where it adopts the overall size of my Assembly for Height, Width and Depth, allows a user entry for the skin thickness to leave behind and uses the precise material thickness to make the final fitment adjustments.

Then, it cuts out of a single piece of material with the press of the start button.

The joint was fairly invisible in MDF, so I traced it with pencil so you could see it.

Rockler has a tablesaw dado set that will make a similar joint, but, the setup uses shims and blade height adjustments to get the fitment right. (Not to mention it costs $389, AND it won’t work with our SawStop TS)

With my CNC programming construct, the setup is over. Just select the material and the overall sizes and output the g-code baby! No fuss, no muss.

After this worked I felt like a proud new Papa who just got a new baby boy!
(Funny, I know.)

I love it when a plan comes together.

-more pics added-

More adventures in miterfolding;

These are 108” long, sequence-matched, quarter-sawn Walnut panels.
They will enclose two fridge and freezer integrated columns that will also have matching sequenced Walnut front panels.

Joint side of the panel

Dry fit with packing tape on veneer face

Easy Peasy!

I’m currently adapting this software construct for floating shelves.

Can you tell I’m having fun?

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251


9 replies so far

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DS

3163 posts in 2805 days


#1 posted 05-22-2019 11:26 PM

In case you are wondering of what use a joint like this might be;

(This is a random image from the interwebs – not my project)

I’ve done a kitchen very similar to this, (also in Macassar Ebony), that was featured on the cover of Phoenix Home and Garden a couple of years back. (It’s behind a paywall, so if you subscribe you can read all about it)

I sure wish I had this construct way back then.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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Desert_Woodworker

1803 posts in 1599 days


#2 posted 05-23-2019 02:48 AM

Fantastic project! Yes I can only “imagine” the mental workout

-- Desert_Woodworker

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Joe Lyddon

10600 posts in 4437 days


#3 posted 05-23-2019 07:00 PM

DS,

Cool way to go!

What kind of Router bits were used to cut it?

I have been studying CNC for a few months now… Started by discovering Dave Gatton & his designed systems.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

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DS

3163 posts in 2805 days


#4 posted 05-23-2019 08:52 PM

This miterfold joint utilized four seperate bits;
  • 1/2” Down Shear for the main dado bit
  • 1/4” Down Shear for the secondary dado bit (the construct will auto select between 1/4” or 1/2” depending on the needed dado widths)
  • 1/2” 45 degree bit for the miter
  • 1/2” compression cutter for the part outline cut

This could be done with a minimum of tooling, (1/4” DS and the 1/2” 45 degree miter bit), but we have a fully stocked 10-tool carousel, so the best tool for the job, I say. Plus the added benefit of cutting at 800 ipm with the 1/2” tools is way faster than the 300 to 400 ipm on the 1/4” tool.

This construct is about to get a good workout as we have two fairly large kitchen projects coming up right away. One is horizontal grain-matched Quarter Sawn White Oak and the other is Quarter Sawn Walnut.

Miter-folding grain-matched panels has always been a pain in the you-know-what. That is part of why they are so much more expensive. It will be interesting to see how much our productivity is increased with this new system.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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Joe Lyddon

10600 posts in 4437 days


#5 posted 05-24-2019 08:31 PM

Very good!

Sounds like you have a SUPER CNC Router system at work!!

Your at home… will it also have a tool carousel? :)

Thank you!

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

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DS

3163 posts in 2805 days


#6 posted 05-28-2019 02:09 PM

I am at the point where I will have to finalize that decision soon. I’ve nearly decided to run a basic spindle and get producing then change to the ATC with a carousel later.

The cost difference is about $600 vs $3500.

Every time I have that kind of money socked away there always seems to be another place to spend it.

As for the machine I have at work, you can see it here;
https://www.lumberjocks.com/topics/235553

and yes, it is a beast of a super machine. (Not the newest, but it sure is a work horse.)

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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DS

3163 posts in 2805 days


#7 posted 06-05-2019 02:35 PM

I figured out that the pic updates might work better at the top of the post, so I moved them.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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DS

3163 posts in 2805 days


#8 posted 06-08-2019 04:08 PM

Finished panels being installed.

Matching Doors and appliance panels will go on soon..

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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Desert_Woodworker

1803 posts in 1599 days


#9 posted 06-08-2019 04:21 PM

Sweet!

-- Desert_Woodworker

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