Answered
Roughing and finishing passes.
I am using Maker and when I carve a relief with a roughing pass using a 6mm tool and then change to a 1/8" ball nose for finishing, the finishing pass travels over the material already removed by the roughing pass. This adds lots of extra time as the stepover is very small.
I have to save the toolpaths out as two separate files as my machine does not have a tool changer.
Is this normal, or is there a special method? Is it because I added a finishing depth to the toolpath calculation?
It carves the relief okay but just takes the extra time trying to re-cut the roughed-out area.
Comments
that finish tool (the ballend) will give you a real nice finish, that is the job of the finish pass, it may (as it should) go over the same area as the roughing toolpath, it does this to remove any ridges to smooth out and remove a miss-match that the roughing bit left, time should never be a driving force in your work, quality should.!!!!!!!!!!!!!
mike
It is the fact that it tries to finish thin air where the roughing pass has already removed the material that is taking the time. I just wondered if the software took into account the fact that the majority of the material has been removed prior to the finishing cuts.
The finishing toolpath makes at least one complete pass cutting nothing before stepping down to start the finishing cuts.
Yes! The final result is worth the wait but I just wondered if it could get there without having to pass through previously removed material.
You didn't say that you were cutting air, how high above the material is it doing this?
I am going to assume that you touched off in "Z" for the ball end.
When ever I run the 2 mine (the finish cut) drive straight down to the material and goes to town.
A little trick for you try running (you will find the time is shorter) a .250 ball, then run a .125 ball, for me sometimes running roughing takes about one and a half again as long.
You might contact support to verify nothing is screwed up with your installation of maker because what you are describing isn't right (unless your using the wrong code (I have done that in the passed).
mike
Hi Tony,
Your cleanup tool-path should be 1 pass, not two.
I think you need to run 2 completely different tool-paths to avoid your problem. The first would be the roughing tool-path that includes (if you want/need) it two passes. The second would be a tool-path for the cleanup that has only one pass.
I think that the fact that you have two cleanup passes, one of which is cutting only air, indicates that I understand the issue you are facing and that I am correct in my suggestion as to how to avoid your problem. I must apologize if I have misunderstood you but I am cutting waxes for jewellery and never follow a roughing/cleanup regime,,,,,,,, so it is possible I am out to lunch here.
That being said I think you need to find out why you have 2 passes on your cleanup tool-path. Once you solve this and get to one pass you will be golden.
I hope this helps.
Mike, Z = 0 would be the same for both tools. The different tool parameters would take into account how far the Z plunge is for either tool.
Thanks for the replies.
I am probably setting something up in the software wrong.
I have just been playing around in the software again and I think if you tick the box "Multiple Z passes" it will try and re-cut the roughed out area. With the box unticked, the simulation shows that it just does the finishing pass straight away. I will set up a small test run and report back.
It is only easy when you know how :-)
"It is only easy when you know how :-)"
Very true,,,,,,,,,,,
Glad to hear you are making progress on this issue. I look forward to hearing how you make out with the test.
I missed something like a ton of bricks falling on my head, Tony said "Multiple Z passes" I thought and thought on this and it just bugged the stuffing out of me, when I'm pushing the limit (most of the time) I don't have the time to verify things. Tony use Just The Raster toolpath not the classic raster toolpath. This boogger thew me for a loop, you will find the plane ordinary raster toolpath just fine, it will do the job and not run you into any problems, oh and next time please state the toolpath that you chose, full info is the correct status it is enough info, when you leave something out we will assume and when we assume we make an ass of you and me.
mike
I did a test run this evening without ticking the "Multiple Z passes" and it went as expected. Roughed out the excess area and then the finishing tool went straight into the material to finish off.
Thanks for all the replies and recommendations.
I wonder what the benefit of multiple Z passes is?
There are just too many options in this software that I don't fully understand, yet. But I am starting to find my way around it.
Very good Tony, glad you got it worked out.
Hi Tony,
Please watch the following demonstration video, as this includes use of the Multiple Z Passes option; note that this link intentionally starts video playback from the 36:45 mark: Carveco Maker: Dished Reliefs Tutorial
If you haven't completed the Carveco Fundamentals training course yet, we recommend that you do.
Thanks for your time and consideration.
Thank you for the pointer to the video. It is on my to-watch list that one but having the exact spot really helps, much appreciated.
any problem with v-bit carving toolpath ?
it tooks a lot of time for useless toolpath
I only want finishig toolpath but it go to all around empty space
Do you know any hint?
Hi Myungje Kim (김명제),
There are no reported defects or issues with using the V-Bit Carving toolpath in any of our products.
Please watch the demonstration videos included in the Carveco Training portal for each of the different toolpaths in Carveco Maker+.
If you would to ask for assistance from the community regarding a particular issue, please use the free WeTransfer service to upload your Carveco Model file (*.art) and then share the generated link when posting here. In addition, please include screenshots to illustrate your issues, as a description alone is often ambiguous.
Thanks for your time and cooperation.
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