Search found 80 matches

by mancavedweller
Mon May 20, 2019 12:57 am
Forum: Problems and questions
Topic: Path rule bug (on inside corners) ???
Replies: 4
Views: 23

Re: Path rule bug (on inside corners) ???

Aah so that's how it works, thanks very much Les, I would never have guessed that. This info is getting archived. Regarding the "On Arcs" rule being applied to outside corners, if say I had a 270 degree small arc in my drawing with internal kerf offset and I wanted to apply an On Arcs cut rule to th...
by mancavedweller
Sun May 19, 2019 12:32 pm
Forum: Problems and questions
Topic: Saving / backing up Path Rules
Replies: 2
Views: 11

Re: Saving / backing up Path Rules

That's great, thanks Les.

Keith.
by mancavedweller
Sun May 19, 2019 12:23 pm
Forum: Problems and questions
Topic: Path rule bug (on inside corners) ???
Replies: 4
Views: 23

Re: Path rule bug (on inside corners) ???

OK, I >>THINK<< I understand that. So an inside corner is any corner less than 180 degrees. This causes a sharp change in direction of the tool. On the contrary an outside corner is any angle greater than 180 degrees and therefore the tool rolls around the corner. And therefore on an "inside offset"...
by mancavedweller
Sun May 19, 2019 10:46 am
Forum: Problems and questions
Topic: Saving / backing up Path Rules
Replies: 2
Views: 11

Saving / backing up Path Rules

Do we have any way to back up Path Rules so on a new install of Sheetcam we don't have to write them all over again ?

Keith
by mancavedweller
Sat May 18, 2019 6:34 pm
Forum: Problems and questions
Topic: Path rule bug (on inside corners) ???
Replies: 4
Views: 23

Path rule bug (on inside corners) ???

Hi Les, having a problem with one of the path rules (on inside corners). I drew a shape in cad to have two 45 degree angles, a 90 degree angle, an angle less than 45 degrees, and an angle greater than 90 degrees. I also gave the shape perpendicular/90 degree leadin/leadout. I created a rule On Insid...
by mancavedweller
Sat May 18, 2019 5:37 pm
Forum: Problems and questions
Topic: Loop inner corners
Replies: 12
Views: 88

Re: Loop inner corners

.........when trying it on the plasma cutter it just seems to mess up the angularity of the cut. I don't find it very useful for the plasma cutter. /Björn I'm surprised to hear that. I find that with a normal inside cut, the trailing jet of the plasma is transferred just after the corner and it tak...
by mancavedweller
Fri May 17, 2019 11:30 pm
Forum: Problems and questions
Topic: Loop inner corners
Replies: 12
Views: 88

Re: Loop inner corners

Just did a quick Google for cam and dogbones on inner corners. One result was this: http://blog.inventables.com/2014/06/learn-about-milling-inside-corner.html That describes dog bones and T-bones too. For plasma cutting a useful complimentary feature may be a path tool dedicated to these dog bones s...
by mancavedweller
Thu May 16, 2019 1:42 am
Forum: Problems and questions
Topic: Loop inner corners
Replies: 12
Views: 88

Re: Loop inner corners

I think it's a useful and practical feature. I've had times when I modified the internal corners in cad for this reason but that's a pain.

Keith.
by mancavedweller
Mon May 13, 2019 11:58 am
Forum: Problems and questions
Topic: Rapid movement?
Replies: 7
Views: 67

Re: Rapid movement?

Hi Roy, I'm a plasma cutting guy so have never done any milling using Sheetcam, but I'll give my interpretation of what's happening. I used your job file and post processor to generate the gcode and this is what I got. I'll put comments in some lines: N0120 G00 Z39.0000 (4mm SafeZ height - you have ...
by mancavedweller
Sun May 12, 2019 11:57 pm
Forum: Problems and questions
Topic: Rapid movement?
Replies: 7
Views: 67

Re: Rapid movement?

Roy, can you attach a copy of your JOB file and your post processor file. You can find your post processor files in one of two different places: C:\Program Files (x86) \ SheetCam TNG \ Posts and in Sheetcam go to the help menu, click on "Open Settings Folder" and open the "posts" folder. You should ...
by mancavedweller
Thu May 09, 2019 11:40 pm
Forum: Problems and questions
Topic: Post processor "how to" problem.
Replies: 5
Views: 45

Re: Post processor "how to" problem.

A big thanks to both of you. After I first posted I actually did find an old Candcnc post processor that did what I wanted BUT knowledge is always something I'm hungry for. I used the short piece of code in Les post and that did the trick. Up until your replies I did not really understand the Onrapi...
by mancavedweller
Wed May 08, 2019 11:32 pm
Forum: Problems and questions
Topic: Post processor "how to" problem.
Replies: 5
Views: 45

Post processor "how to" problem.

Hi Les (or anyone else who can help), I've been modifying an old Mach3 plasma post processor but cannot for the life of me find out how to get it to stop putting the Z pierce height at an unwanted location in the code. I basically need: 1. Go to Safe Z 2. Rapid to pierce location 3. Touch off 4. Rai...
by mancavedweller
Sun May 05, 2019 1:00 am
Forum: Problems and questions
Topic: Arc instead of corner
Replies: 11
Views: 101

Re: Arc instead of corner

Hi Rod, I think G64 has a more appropriate name in Lcnc - "Path Blending". I've always heard it called "Constant Velocity Mode", but path blending is a more accurate description. Just out of curiosity, can you enter the G64 parameters on screen in Lcnc or is it only in gcode. In UCCNC, based on the ...
by mancavedweller
Fri May 03, 2019 9:10 pm
Forum: Problems and questions
Topic: Arc instead of corner
Replies: 11
Views: 101

Re: Arc instead of corner

I ran your gcode in my cnc program and it worked fine. No rounding of corners.

My guess is this is the settings in your cnc controller, not a Sheetcam problem.
by mancavedweller
Thu Apr 18, 2019 12:06 am
Forum: Problems and questions
Topic: Rules for THC On and THC Off
Replies: 40
Views: 435

Re: Rules for THC On and THC Off

On the occasion of the UCCNC I will give a link and only say that they have codes that work in sync really BUT they MUST BE ACTIVATED AT THE PRESENT TIME OF THE G CODE !!! If I had a simple straight line 100mm long and I used Path Rules to insert M205 (THC on) 10mm after the start, and M206 (THC of...