Keep tool down

Here's the place for discussion related to CAM/CNC and the development of the Path module.
GeneFC
Posts: 1801
Joined: Sat Mar 19, 2016 3:36 pm
Location: Punta Gorda, FL

Keep tool down

Postby GeneFC » Wed Nov 22, 2017 9:19 pm

The very recent changes to the pocket operation that better support the "keep tool down" option seem to be quite effective.

The Kangaroo Mode (tm) has been significantly tamed.

Nice work!

Gene
raketenolli
Posts: 18
Joined: Fri Oct 06, 2017 9:30 pm

Re: Keep tool down

Postby raketenolli » Mon Nov 27, 2017 10:09 am

Yes! Very cool. I only find it a little strange that it's something that's buried deep inside the Combo window and not directly accessible when defining the operation.

Oliver
herbk
Posts: 1989
Joined: Mon Nov 03, 2014 3:45 pm
Location: Windsbach, Bavarya (Germany)

Re: Keep tool down

Postby herbk » Mon Nov 27, 2017 11:59 am

Keep tool down does not work on my system...
ktd.jpg
ktd.jpg (66.89 KiB) Viewed 806 times
Screenshot is made from Appimage

OS: "openSUSE Leap 42.3"
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.12624 (Git)
Build type: None
Branch: master
Hash: 8ea6b92ea98bced2fcef2d099dd3a6d50ec4290c
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.1.0
Locale: German/Germany (de_DE)
Gruß Herbert
chrisb
Posts: 30786
Joined: Tue Mar 17, 2015 9:14 am

Re: Keep tool down

Postby chrisb » Mon Nov 27, 2017 1:55 pm

GeneFC wrote:
Wed Nov 22, 2017 9:19 pm
The Kangaroo Mode (tm) has been significantly tamed.
What a pity for jmaustpc at downunder :lol: .
You need at least FreeCAD 0.19.23300 to edit my current sketches.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
GeneFC
Posts: 1801
Joined: Sat Mar 19, 2016 3:36 pm
Location: Punta Gorda, FL

Re: Keep tool down

Postby GeneFC » Mon Nov 27, 2017 5:52 pm

herbk wrote:
Mon Nov 27, 2017 11:59 am
Keep tool down does not work on my system...
Herbk,

You need to update. I believe this change came in at 0.17.12626.

Gene
herbk
Posts: 1989
Joined: Mon Nov 03, 2014 3:45 pm
Location: Windsbach, Bavarya (Germany)

Re: Keep tool down

Postby herbk » Wed Jan 10, 2018 9:03 pm

Hi
OK i'm on 0.17.12920 now but "keep tool down" shows still some strange movements.
spt_4.jpg
spt_4.jpg (86.12 KiB) Viewed 693 times
The pic shows still some up and downs and, much more critically, some pathes thru material which should not be removed.

I know, if i make each pocket as its own, i downt gave the prob with the not wanted cuts, but then i have to remove the entire moves to the "0 point" of the machine if i wont to save that machine time.
Gruß Herbert
User avatar
JoshM
Posts: 450
Joined: Thu Oct 05, 2017 5:34 pm
Location: New Hampshire

Re: Keep tool down

Postby JoshM » Fri Jan 12, 2018 1:58 am

Hi Herb,
I think I've got a way to get what you want done--or at least to address most of it. I mocked up a similar model to yours--estimated based on your pictures. I've added Ops to accomplish what I think you are doing. I think it resolves the remainder you mention. Hope it is helpful.
Regards,
Josh
Attachments
FreeCad_Example_FIle_2000.FCStd
(131.19 KiB) Downloaded 17 times
herbk
Posts: 1989
Joined: Mon Nov 03, 2014 3:45 pm
Location: Windsbach, Bavarya (Germany)

Re: Keep tool down

Postby herbk » Fri Jan 12, 2018 1:53 pm

Hi Josh,
thx, but i want to show that the option "keep tool down" ignores higher segments between two or more pockets, if more then one pocket is selcted for one operation.
"Keep tool down" is a very effective tool to save machine time, because It's not necessary to lift the endmill for a step over.
Gruß Herbert
User avatar
JoshM
Posts: 450
Joined: Thu Oct 05, 2017 5:34 pm
Location: New Hampshire

Re: Keep tool down

Postby JoshM » Fri Jan 12, 2018 2:01 pm

Of course Herb--I thought you'd also mentioned--perhaps in Simulation thread--that you were also displeased with leftovers around those cuts.

The default lifts between concentric passes has surprised me because previously I used a 2.5D CAM which by default moved outward/inward without lifting.

Best,
Josh