split data to small cnc

sevc · Postby **sevc** » Tue Apr 25, 2017 6:45 pm

Hi all.
I'm new then pls understand me .
I have small CNC machine , working dimension is 17cm x 40cm .
I have DXF data, to manufacture clock from plywood , there are part what are bigger than my workspace .
I search easy way hot to split data (part ) to my workspace .
I try it but still don't know how effective do it.
Can you help me ?
Here is my one wheel :

ozubene koleso.svg: (122.15 KiB) Downloaded 180 times

Here is in DXF format : https://drive.google.com/file/d/0B8XjlQWgRvvoUUlrZ3IxMW50emM/view?usp=sharing
Here are complete DXF file with all parts : https://drive.google.com/file/d/0B8XjlQWgRvvoMnhKLVh6UnNSclU/view?usp=sharing

best regards

theozh · Postby **theozh** » Tue Apr 25, 2017 9:29 pm

Recently, there were similar questions:
Have you checked these posts?
viewtopic.php?f=5&t=32086&p=97390
viewtopic.php?f=22&t=32080&p=97412

sevc · Postby **sevc** » Wed Apr 26, 2017 4:29 am

Hi.
I read all this post .. but not help me ..
I do some step by step .. and find some solution but not work for 100% ..
What I do is :
1. import wheel to workspace
2. fill bounded area - fill my wheel with any color
3. create path if more than one path then use combine path
4. select path and bounded area and do division .
5. I have part what I want .

problem is that if fill bounded area then not fill for 100% and I don't know how to fill for 100% of my wheel .
this is video what I do : https://drive.google.com/file/d/0B8XjlQWgRvvoVHZ4ZmJST1E4Ykk/view?usp=sharing

pls need help with this .. and all other I can do it ..

best regards .

Postby **brynn** » Wed Apr 26, 2017 11:21 am

I don't understand what you're asking. Your question in the first message is a different question than the 2nd message. I don't understand why you are doing Division. And I don't understand why you're using Fill Bounded Area tool. Probably there is a better way.

The best I can understand from the steps you describe in your 2nd message, these following 5 steps will do the same thing, except in a better way. This will make the paths more precise than if you use fill unbounded area tool. (Fill unbounded area tool has no precision.)

Try this, with the ozubene koleso.svg file.

1 -- With Selection tool :tool_selector:

enabled, press Ctrl A (select all) (selects all paths)
2 -- Switch to the Node tool :tool_node:

3 -- Press Ctrl A again (selects all nodes)
4 -- Click Join selected nodes button (on the Node tool control bar, looks like this

5 -- Path menu > Combine

The gear (wheel) drawing is made of many short paths with 2 nodes each, which are not connected to each other. Those 5 steps will make all the nodes connected, and all one compound path. I'm not sure if you need step #5. If you need the paths to be separate, just undo step 5.

I hope this helps, one way or another?

sevc · Postby **sevc** » Thu Apr 27, 2017 12:36 am

Hi.
Thanks for your help , it's working for 90% .
I don't know but make many mistake, I make two short videos where you can see what happened if use your solution .
Split wheel 1 : https://drive.google.com/file/d/0B8XjlQWgRvvoRjRUaTVwaFJvNk0/view?usp=sharing
Split wheel 2 : https://drive.google.com/file/d/0B8XjlQWgRvvob215VUxGRWI1NWc/view?usp=sharing

I don't know but after division some part of wheel are combined with different part ..

This is good way how to solve my problem .. only need solve last part of problem..

best regards.

tylerdurden · Postby **tylerdurden** » Thu Apr 27, 2017 1:20 am

(I don't know why.)

Moini · Postby **Moini** » Thu Apr 27, 2017 3:17 am

Sorry, couldn't resist:

sevc · Postby **sevc** » Thu Apr 27, 2017 3:51 am

Hi. I test it .. not working .. I don't know why ..
https://goo.gl/photos/6d2jDSQnwMjqpKVdA
still make some problem .. and avery time different..

what is wrong ??? interesting is that every time make different mistake ..
I use Windows 7 32 bit SP3
Inkscape 0.92.1 r15371

PS: what tool you use to record screen to gif ??

tylerdurden · Postby **tylerdurden** » Thu Apr 27, 2017 4:34 am

I use Sharex... free open-source screen capture. Set for gif. https://getsharex.com/

Before divide operation, try Path>reverse on wheel.

sevc · Postby **sevc** » Thu Apr 27, 2017 5:56 am

Hi. I try it again in my tablet Windows 8.1
still same result .. what is wrong ..??
still delete some part from wheel ..
I try rotate , reverse etc,. still same problem..

regards

Postby **brynn** » Fri Apr 28, 2017 2:06 am

I can't view videos. Do you need some kind of special viewer for AVI ?

tylerdurden · Postby **tylerdurden** » Fri Apr 28, 2017 2:15 am

brynn wrote:I can't view videos. Do you need some kind of special viewer for AVI ?

They just open in Chrome for me.

Postby **brynn** » Fri Apr 28, 2017 2:33 am

I just get the black screen with spinning circles. In Firefox.

Hhm, I see that Ff has recently dropped support for some video formats. It says support has ended for NPAPI plugins. But I can't figure out what NPAPI means.... It sounds like they've dropped support for everything except Flash! Pardon my "french", but wtf!!

It looks like you can download some Extended Support Release, and get support until 2018. Or it says the 32-bit version of Ff still supports them.

Found NPAPI: https://en.wikipedia.org/wiki/NPAPI

But I'm still not certain this is what's causing the problem.

Moini · Postby **Moini** » Fri Apr 28, 2017 7:55 am

I'm rather certain that this is unrelated, Brynn, - but who knows... All I can say that it works for me in Firefox, without an issue. Maybe some codec has been accidentally removed, or some blocker is blocking it for you.

Postby **brynn** » Fri Apr 28, 2017 1:56 pm

I finally used Windows something Player and saw the videos.

I'm not as good at making videos and stuff as everyone else, but I made a video showing a little bit different type of approach.

In case it's not clear, using Snapping is important in 2 places. In the first place, you are snapping the corner of the rectangle to the center of the segment which is the outer edge of the gear tooth. There is no node there. This snapping feature finds the midway point and snaps to it.

The other place is when you move the duplicated rectangle, and snap the top corner of it to the bottom corner of the first rectangle. That makes sure that the top of the 2nd rectangle is precisely aligned to the bottom of the first rectangle.

http://tavmjong.free.fr/INKSCAPE/MANUAL ... pping.html

In the end, you still have a slight bit of node editing.... Well, maybe not. I don't know how your cutter works, so I'm not sure if you need the path to be closed or not. If it needs to be open, using the Node tool, click on the segment you want to remove (that selects the 2 nodes). Then click "Delete segment between 2 nodes" button on the Node tool control bar (looks like this

)

I think the reason that Division isn't working, is because of the gear being a comound path. I'm not positive about that though, because it seems to work fine for TD. I noticed that he rotated something, I guess it was the whole gear, by 45 degrees. I honestly don't know why he did that. But maybe it's important for Division to work?

You can try both ways

Edit
Forgot the link to the video :roll:

https://inkscapecommunity.com/jd/vids/dg.mp4

sevc · Postby **sevc** » Fri Apr 28, 2017 10:32 pm

Hi. I try last solution .. work .. but I must try many times .. and learn exactly how it work ..
In the weekend I'm not at home then can't test it .. but next week I will know if it working for 100% or not ..
thanks brynn .. you use Intersection not divide ..

best regards..

sevc · Postby **sevc** » Fri May 12, 2017 9:47 pm

Hi all.
I test this solution many times , works for 100% for wheel only but for other graphic structure not working .. not possible to use same solution .
For example :

part_A7.svg: (23.55 KiB) Downloaded 144 times

If try use same step by step as in wheel .. then make mistake ..
I thinks so wheel and part_A7 is different and not possible to use intersection ..
Delete any line or part , and then I must manually add.
https://drive.google.com/open?id=0B8XjlQWgRvvoTTJYS1Q4cEVRcWM
But it's easy to do it ..

Will be good if any one can make extensions for this .. for small CNC plug in , where is possible to split data for request dimension .

Best regards.

PS: I try fill my wheel with any color .. do it .. but not for 100% .. how I can do it ??
in this example : https://drive.google.com/file/d/0B8XjlQWgRvvoVHZ4ZmJST1E4Ykk/view?usp=sharing

tylerdurden · Postby **tylerdurden** » Fri May 12, 2017 11:18 pm

Objects with open nested paths will not behave the same as closed nested paths.

To embed a picture in the post, you can use your own website or a service that allows "hotlink" .

^^^^ Look for additional objects... ^^^^

sevc · Postby **sevc** » Sat May 13, 2017 9:21 pm

Hi.
ehm .. about gif in forum ..
I upload file to dropbox , set share all , result is this link : https://www.dropbox.com/s/6bc3k8lez48uu ... 8.gif?dl=0
how to use with Img in forum??
if use it :

this is url : https://www.dropbox.com/s/6bc3k8lez48uugq/2017-05-12_10-09-28.gif?dl=0

ehm. now it working ..

Postby **brynn** » Sun May 14, 2017 6:53 pm

Hhmm, I don't know why it's not working to use the Img tag/button in the editor. It seems like it should work. I'll investigate (as much as possible).

Edit
Ok, here's what I found out. It looks like a problem with the forum. But unforunately, at the moment, it can't be fixed. Meanwhile, if you don't mind just posting a link to dropbox, that would be great.

I apologize for the inconvenience :oops:

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