[Analias]

Wow, nice work. You have me thinking about how to modify the front of my CRP4848 to handle vertical fixtures so I can do this. With the height of my table and Z travel, I should be able to do approximately 35" to 40" long parts. I'm looking forward to the release of the software. Need a beta tester with software development experience? :-)

Sent from my Xoom using Tapatalk 2

[OCNC]

Very nice!

[zool]

Brilliant, absolutely brilliant!

[roy_okc]

Very nice Gerry.

I had enough foresight when I built my machine to allow vertical clamping just so I could do dovetails in the future. Looks like your app will make it easy.

As I'm a LinuxCNC (nee EMC2) user, does this spit out generic gcode or is it a plugin for Mach 3 or something else?

Thanks,
Roy

[ger21]

Plain old g-code. Here's the code I used in the video. The parts in red are user configurable. Comments in () can be turned on/off

%
G20 G40 G49 G90
G91.1
( Stock Width = 5.5 )
( Side Thickness = 0.75 )
( Tool #2 - Straight Bit )
( Diameter = 0.25 )
S12000 M3
G0 Z.125
G0 X12.5519 Y0.1250
G0 Z-0.1167
F75
G1 X12.5519 Y-0.5000
G2 X11.7513 Y-0.5000 I-0.4003 J0.0000
G1 X11.7513 Y0.5313
G1 X11.7513 Y-0.5000
G2 X10.9508 Y-0.5000 I-0.4003 J0.0000
G1 X10.9508 Y0.5313
G1 X10.9508 Y-0.5000
G2 X10.1503 Y-0.5000 I-0.4003 J0.0000
G1 X10.1503 Y0.5313
G1 X10.1503 Y-0.5000
G2 X9.3497 Y-0.5000 I-0.4003 J0.0000
G1 X9.3497 Y0.5313
G1 X9.3497 Y-0.5000
G2 X8.5492 Y-0.5000 I-0.4003 J0.0000
G1 X8.5492 Y0.5313
G1 X8.5492 Y-0.5000
G2 X7.7487 Y-0.5000 I-0.4003 J0.0000
G1 X7.7487 Y0.5313
G1 X7.7487 Y-0.5000
G2 X6.9481 Y-0.5000 I-0.4003 J0.0000
G1 X6.9481 Y0.5313
G0 Z.125
G0 X12.5519 Y0.1250
G0 Z-0.2333
F75
G1 X12.5519 Y-0.5000
G2 X11.7513 Y-0.5000 I-0.4003 J0.0000
G1 X11.7513 Y0.5313
G1 X11.7513 Y-0.5000
G2 X10.9508 Y-0.5000 I-0.4003 J0.0000
G1 X10.9508 Y0.5313
G1 X10.9508 Y-0.5000
G2 X10.1503 Y-0.5000 I-0.4003 J0.0000
G1 X10.1503 Y0.5313
G1 X10.1503 Y-0.5000
G2 X9.3497 Y-0.5000 I-0.4003 J0.0000
G1 X9.3497 Y0.5313
G1 X9.3497 Y-0.5000
G2 X8.5492 Y-0.5000 I-0.4003 J0.0000
G1 X8.5492 Y0.5313
G1 X8.5492 Y-0.5000
G2 X7.7487 Y-0.5000 I-0.4003 J0.0000
G1 X7.7487 Y0.5313
G1 X7.7487 Y-0.5000
G2 X6.9481 Y-0.5000 I-0.4003 J0.0000
G1 X6.9481 Y0.5313
G0 Z.125
G0 X12.5519 Y0.1250
G0 Z-0.3500
F75
G1 X12.5519 Y-0.5000
G2 X11.7513 Y-0.5000 I-0.4003 J0.0000
G1 X11.7513 Y0.5313
G1 X11.7513 Y-0.5000
G2 X10.9508 Y-0.5000 I-0.4003 J0.0000
G1 X10.9508 Y0.5313
G1 X10.9508 Y-0.5000
G2 X10.1503 Y-0.5000 I-0.4003 J0.0000
G1 X10.1503 Y0.5313
G1 X10.1503 Y-0.5000
G2 X9.3497 Y-0.5000 I-0.4003 J0.0000
G1 X9.3497 Y0.5313
G1 X9.3497 Y-0.5000
G2 X8.5492 Y-0.5000 I-0.4003 J0.0000
G1 X8.5492 Y0.5313
G1 X8.5492 Y-0.5000
G2 X7.7487 Y-0.5000 I-0.4003 J0.0000
G1 X7.7487 Y0.5313
G1 X7.7487 Y-0.5000
G2 X6.9481 Y-0.5000 I-0.4003 J0.0000
G1 X6.9481 Y0.5313
G0 Z.125
M5
( Tool #3 - Dovetail Bit )
( Diameter = 0.5 )
( Length = 0.5 )
T3 M6
S12000 M3
F75
G0 X12.8000 Y-0.9500
G0 Z-0.4000
G1 X6.5000 Y-0.9500
G0 Z.125
G0 X12.5519 Y0.2500
G0 Z-0.4000
G1 X12.5519 Y-0.5000
G2 X11.7513 Y-0.5000 I-0.4003 J0.0000
G1 X11.7513 Y0.5313
G1 X11.7513 Y-0.5000
G2 X10.9508 Y-0.5000 I-0.4003 J0.0000
G1 X10.9508 Y0.5313
G1 X10.9508 Y-0.5000
G2 X10.1503 Y-0.5000 I-0.4003 J0.0000
G1 X10.1503 Y0.5313
G1 X10.1503 Y-0.5000
G2 X9.3497 Y-0.5000 I-0.4003 J0.0000
G1 X9.3497 Y0.5313
G1 X9.3497 Y-0.5000
G2 X8.5492 Y-0.5000 I-0.4003 J0.0000
G1 X8.5492 Y0.5313
G1 X8.5492 Y-0.5000
G2 X7.7487 Y-0.5000 I-0.4003 J0.0000
G1 X7.7487 Y0.5313
G1 X7.7487 Y-0.5000
G2 X6.9481 Y-0.5000 I-0.4003 J0.0000
G1 X6.9481 Y0.5313
G0 Z.125
M5
M30
%

[kevincnc]

Hey Gerry, what do you use to edit your videos?

[ger21]

I used to use an old copy of NeroVision, but used Sony Vegas Movie Studio on this one. You can get it on Amazon for $70
[ame=http://www.amazon.com/Sony-Studio-Platinum-Production-Version/dp/B0051M6IPI]Amazon.com: Sony Vegas Movie Studio HD Platinum 11 Production Suite [Old Version]: Software[/ame]

[kevincnc]

Cool, thanks.

[zool]

Instead of changing cutters, would it be possible to program so the dovetail cutter "pecks" at the cut?


"pecks" as in up and down movements when drilling

[ger21]

For dovetails as shown in the video, which are the size of the bit, it wouldn't make any difference, other than a longer cutting time.

Because the cut is only the tool diameter wide, the cutting force would be the same. Only the duration of cut would be shorter.
With a rigid machine, and most woods, you shouldn't need the roughing passes. If you look at all the other similar youtube videos, you'll see that they're cut in one pass with the dovetail bit.

The ones that "nibble away" are wider than the bit. I'm writing the code for those now.

I just cut another sample, and the fit is much tighter. I found a small error in my code that caused the spacing to be off slightly.

[danorasi]

I am new to cnc zone,this being my first posting. Just wanted to give you a nice example for a vertical vice for dovetails and mortises. It is designed by LegacyWoodworkig cnc, a great bunch of guys Utah.
https://www.youtube.com/watch?v=Qzxub_SOsFI

This video is cutting dovetails in their original vertical vise.

https://www.youtube.com/watch?v=WKu6OC47Qv8

I plan on building one of their new bolt on stile vertical vices for my CRP 4896.

[notimeforwork]

I've seen videos of the higher end machines cutting dovetails, the program uses the cutter to score areas prone to splintering before cutting the dovetails. A great fit means nothing if the edges are splintered to heck.

Would also be nice to be able to do this....

http://www.liluinteriors.com/blog/wp...o3-300x241.jpg

[joe aiello]

This is interesting,I'll be looking for more info.
Have you tried the dovetail cut in one pass? What were the results?

It seems to me, with the straight cut you have possibilities for mortise and tenon cuts.

..... joe

[ger21]

Would also be nice to be able to do this....

Got a full picture?

[ger21]

Have you tried the dovetail cut in one pass? What were the results?

No, but the results would be exactly the same, unless your machine has a lot of flex in it.

[WasteOfSpace]

Got a full picture?

Looks like the bears ears that Leigh has for their isoloc joints.

Bob Willson

[notimeforwork]

best I can offer is to suggest searching for 'joints by nathan wierink' there seems to be only one example but many different pictures.

Leigh's templates stick to a single joint pattern throughout the joint, and some are very attractive, but quickly would be very boring - where the wierink joint seems to have a random pattern that seems abstract and somewhat whimsical.

I'd be happy to see some unconventional choices in the dovetails as it seems to grasp the finer abilities of cnc routing, but to hope for the ability to easily produce something like the wierink joint is somewhat hijacking your project into a different direction.

[ger21]

where the wierink joint seems to have a random pattern that seems abstract and somewhat whimsical.

Yeah, you won't be seeing a random pattern joint from me.
However, I would like to try to do some of the fancier joints at some point. But they may not make it into this version.

[WasteOfSpace]

But it would be a free upgrade for early buyers though -- right?

[Khalid]

I would never require to do these joints in my life time but i congratulate you for making a good program. I am also a programmer and i really thinking now how you able to generate the Gcode.. You are really a talented guy. Thank You for the Mach3 2010 superb screenset and this Dovetail program to the CNC community.