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Dovetails in Oak, done on CNC machine

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Project by H_Stevens posted 08-06-2018 06:07 PM 976 views 1 time favorited 28 comments Add to Favorites Watch

Yesterday I posted some pics of a Dovetail jig I built for my CNC machine. The pics were of test pieces in plywood. Plywood is not the best dovetail material. Today I did some in oak and got a much better result. Still need to tweek the pins. Nevertheless, this is a very tight fit with no slop.

Hamp

-- Hamp, St. Simons Island, GA http://hampstevens.com/





28 comments so far

View pottz's profile

pottz

2868 posts in 1068 days


#1 posted 08-06-2018 06:59 PM

not bad i kinda like the way it did a soft rounded corner,makes a different look from normal.

-- sawdust the bigger the pile the bigger my smile-larry,so cal.

View Rich's profile

Rich

3342 posts in 673 days


#2 posted 08-06-2018 07:47 PM

Two quick points — that is not a project. If you had read the opening statement on the new project page, you’d know that it is not a finished project. Second, those are horrible looking “dovetails.”

Your home made CNC machine is really nice, I just would look for other uses for it than trying to do joints it appears to not be intended for.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View DS's profile

DS

2967 posts in 2504 days


#3 posted 08-06-2018 08:51 PM

Yes, I agree with Rich…
All CNC Dovetails MUST be done on a REAL CNC Dovetail machine!

None of this homemade, do it yourself stuff!
;-)

(Waiter, oh waiter? Please bring us some FRESH wine. No more of this OLD stuff!)

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

View pottz's profile

pottz

2868 posts in 1068 days


#4 posted 08-06-2018 10:09 PM


Yes, I agree with Rich…
All CNC Dovetails MUST be done on a REAL CNC Dovetail machine!

None of this homemade, do it yourself stuff!
;-)

(Waiter, oh waiter? Please bring us some FRESH wine. No more of this OLD stuff!)

- DS


yeah i gotta agree if you cant afford one of these just do butt joints-lol.

-- sawdust the bigger the pile the bigger my smile-larry,so cal.

View LittleBlackDuck's profile

LittleBlackDuck

1909 posts in 905 days


#5 posted 08-07-2018 01:36 AM

Worthwhile extrapolation of the CNC technique…


Two quick points — that is not a project…. Second, those are horrible looking “dovetails.”
- Rich

Now that’s a Rich statement. If you can’t say something constructive, say nothing…

Now having said that…..


..... just do butt joints.....

- pottz


I thought joints were meant to be smoked… not butted… OUCH!
Bring on the vino!

-- If your first cut is too short... Take the second cut from the longer end... LBD

View Rich's profile

Rich

3342 posts in 673 days


#6 posted 08-07-2018 01:41 AM


Two quick points — that is not a project…. Second, those are horrible looking “dovetails.”
- Rich

Now that s a Rich statement. If you can t say something constructive, say nothing…

_- LittleBlackDuck

The pot calling the kettle black? LOL

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View LittleBlackDuck's profile

LittleBlackDuck

1909 posts in 905 days


#7 posted 08-07-2018 02:16 AM


The pot calling the kettle black? LOL
- Rich

Hey, I’m not the LittleBlackDuck for zip… but I refuse… absolutely refuse, to morph into a kettle… even one with a long spout!!!

-- If your first cut is too short... Take the second cut from the longer end... LBD

View helluvawreck's profile

helluvawreck

31994 posts in 2951 days


#8 posted 08-07-2018 12:57 PM

This is an interesting post. Thanks!

-- helluvawreck aka Charles, http://woodworkingexpo.wordpress.com

View pottz's profile

pottz

2868 posts in 1068 days


#9 posted 08-07-2018 01:13 PM

maybe rich would be willing to show us some of his expert dovetail work so we could all be better? it sounds like he’s mastered the technique! its funny that the quality is so bad it made the dt3!

-- sawdust the bigger the pile the bigger my smile-larry,so cal.

View H_Stevens's profile

H_Stevens

21 posts in 129 days


#10 posted 08-07-2018 01:37 PM

Hey all, I apologize the inappropriate language. Those comments by Rich rubbed me the wrong way.

See some of my other “projects” I’ve posted here and you can see my work. Also check out my web site: http://hampstevens.com/

I build “polyhdera” which equates to Joinery on steroids. But, I have yet to build a perfect one. And the first ones I build were not as good as the ones I build today. But you learn by doing…

Woodworking is more art than science.

Again, sorry for the ruff language.

Hamp

-- Hamp, St. Simons Island, GA http://hampstevens.com/

View Rich's profile

Rich

3342 posts in 673 days


#11 posted 08-07-2018 01:49 PM

I complimented your machine. As a retired electrical engineer with degrees from the University of Wisconsin and Marquette, I can appreciate the work that went into it.

I can also read, and giant blue letters on the project posting page saying that a project is a completed piece makes it pretty clear this is not a project.

But hey, Daily Top 3…LOL Go figure.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View DS's profile

DS

2967 posts in 2504 days


#12 posted 08-07-2018 01:53 PM


I can also read, and giant blue letters on the project posting page saying that a project is a completed piece makes it pretty clear this is not a project.

If his project was to complete a dovetail joint using a homemade CNC machine, I’d say he finished it just fine.

OP: Kudos to you for being creative enough and motivated enough to put this together!

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

View pottz's profile

pottz

2868 posts in 1068 days


#13 posted 08-07-2018 01:56 PM

ditto

-- sawdust the bigger the pile the bigger my smile-larry,so cal.

View grace123's profile

grace123

237 posts in 2846 days


#14 posted 08-07-2018 03:34 PM

Good job to you, especially with your CNC machine. One thing I have noticed is it takes an EXTREMELY brave soul to post anything involving dovetails. As a rule, comments on Lumberjocks are encouraging and positive. However, dovetails bring out the worst in posters. I am not sure why.

Having said that, I applaud you once again for your work.

View ChuckC's profile

ChuckC

842 posts in 3019 days


#15 posted 08-07-2018 05:49 PM

I agree with DS that if the goal was to make a dovetailed corner with his CNC router then mission accomplished! And I’m not sure that LJ’s needs self appointed project police either.

I do have a couple of questions though. Were the rounded corners intentional? It would seem that you could get them square (outside corner) if you like. Once the jig is installed on the CNC router how long did it take to setup the boards and make the cuts?

Aside from all of that congratulations on the CNC build! I made one myself (not as nice as yours) and I can appreciate all of the work it takes to pull it off.

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