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-   -   Dovetails and other joints (http://www.mechmate.com/forums/showthread.php?t=3965)

Tom Ayres Sat 30 August 2014 04:10

Gerry are you still on target by the end of the year?

ger21 Sat 30 August 2014 07:22

I'm hoping to release it with dovetails only in about a month.
I'm assuming there will be a few(?) minor bugs that will turn up once other people start using it, which will possibly a few weeks of bug fixing.
Once those issues are ironed out, I'll start working on the box joints.
I can't guarantee I'll have it 100% done by the end of the year, but I'll be working on it.

I worked on this from December to June, almost daily, to get it where it is now. It's taken far longer than I though it would. I'm hoping that the remainder goes faster, as I've learned a lot this past year.

I realized yesterday that my method for adjusting the fit does not work with through dovetails, so I need a different method.
With half blind dovetails, you just vary the depth of cut top adjust the fit.
Shallower = looser, deeper = tighter.
With through dovetails, changing the depth of cut just moves the location of the pin board in relation to the end of the tail board.
It looks like I need to change the size of the pins to adjust the fit. I have an idea on how to do this, which is hopefully relatively painless. (only a few hours?)



Quote:
Originally Posted by Fox View Post

however big or small they may be, it seems like there are on some joints gaps and others not ? in other words irregular results ? Or is this an optical illusion ?
While some of what you saw was due to optical illusions (from shadows), you were correct, there were some irregular gaps. I had assumed that they were caused by flex in my machine, because the joints still fit together very well. Typically, when there are errors, they just won't go together at all.
But I went through the g-code, and found a few errors in my toolpaths, which were off between .002"-.004" in some places. I should have this fixed up today.

Tom Ayres Sat 30 August 2014 07:35

Can't wait, thanks:)

Fox Sat 30 August 2014 10:21

Quote:
While some of what you saw was due to optical illusions (from shadows), you were correct, there were some irregular gaps. I had assumed that they were caused by flex in my machine, because the joints still fit together very well. Typically, when there are errors, they just won't go together at all.
But I went through the g-code, and found a few errors in my toolpaths, which were off between .002"-.004" in some places. I should have this fixed up today.
Big of you to admit that here.
Good to know for me that my eye for detail did not fail me, and even better that you got it sorted !

ger21 Sun 21 September 2014 19:48

Have a website up, and should be ready to go sometime within the next week.

http://g-forcecnc.com/jointcam.html

racedirector Sun 21 September 2014 20:11

Excellent Gerry, money at the ready as soon as the ???? become numbers :)

ger21 Sun 28 September 2014 05:48

After nearly two years, the wait is finally over.

http://g-forcecnc.com/jc_purchase.html

racedirector Sun 28 September 2014 06:23

Excellent, as soon as my machine starts to make dust I will be grabbing a copy!

Robert M Sun 28 September 2014 11:24

GREAT NEWS...Thanks for giving “birth” to this great tool!
Sorry for not helping more....
Wishing you business success with it.
Later, Robert ;)

pblackburn Sun 28 September 2014 12:52

I don't know if I will ever use it but your help to myself and others warranted a purchase.
Thanks Ger.

alan254 Mon 29 September 2014 06:40

just ordered mine

looking forward to using

thanks al

ger21 Mon 29 September 2014 06:57

Thanks for the support, guys. :)

AuS MaDDoG Fri 03 October 2014 04:06

Just ordered mine too :D

Looking forward to getting the time to play with this awesome piece of software.
Great work Gerry.

Thanks
Tony.

darren salyer Fri 03 October 2014 06:55

Just saw its now available. Headed off to work, but I'll get a copy headed my way this weekend.
Great job, Gerry.

Andrew_standen Fri 03 October 2014 06:56

Just ordered mine.
Great work Gerry.
Thanks
Andrew

ger21 Sat 11 October 2014 21:23

Box Joints
 
3 Attachment(s)
Now that I have dovetails finished (except for some minor bug fixes), I started playing around with box joints. Probably a few months away, but I wanted to cut a test to see how they'd come out.

Robert M Sat 11 October 2014 21:52

Much looking forward for this one too ;)

AuS MaDDoG Fri 17 October 2014 06:32

Looking good Gerry :)
Cheers
Tony

digger Wed 05 November 2014 19:19

Ger, looks great.
Are you planning to do something about Knapp joint too?

ger21 Wed 05 November 2014 20:29

Had to Google that one.
No, I probably won't be doing that one.
But I do plan on a rounded finger joint, which is a little bit similar.

http://leighjigs.ru/images/companies...NGER_Joint.jpg

http://www.leighjigs.com/data/1054938350.jpg

ger21 Wed 05 November 2014 20:38

1 Attachment(s)
Here's the assembled joint from above. I think I have the standard box joints finished, just have to fix the preview that I broke when I got everything else working.

ger21 Sun 08 February 2015 17:09

2 Attachment(s)
Been working on this for the last month or so. Found a minor issue when I cut this, but should be releasing a new version soon.

Robert M Sun 08 February 2015 18:21

Looking good !
nice to know these variable.....as I've yet realty tried it / pushed it sins I bought it :o

ger21 Sun 15 February 2015 08:58

I know a few of you have had issues with the JointCAM interface, due to the use of large font settings in Windows.
I've uploaded a new test version that now scales all of the controls to the window size, allowing you to make the window bigger to fit everything. I've only changed the Config and round box joint sections, but I'd appreciate any feedback on it.
I'll be moving forward on redesigning the entire interface. The scaling issue will only become more common as more people move to higher resolution displays, which often require larger font sizes to make text legible.


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