Contour with multipass

[Hertz]

Hey guys, am I able to somehow do a contour for a straight line and use the multipass with a small stepover (like dynamic milling) and have it retract radially instead of axially? Not sure if I'm explaining clear enough.

Basically a square part that needs half the depth and half the width removed. Finished part looks like an L shape solid. I want to feed along the X only instead of how the dynamic core path moves all around. So move in on Y, cut along X, clear out on y, come up a micro amount in Z, rapid back on X, back in on Y, lower Z, cut along X and so on. I understand it sounds like the dynamic toolpath but as I said, I'd like it to move on X only. That possible? Or is it possible to manipulate the dynamic path?

[jeff]

Have you tried setting your retract to an incremental amount?

 

Check "Keep tool down" also.

[Hertz]

I did try that but it does not move away from the part. It actually ends up moving on an angle as it goes back to the next position, but causing gouging into the part.

[jeff]

What if you set a lead in/out (Tangent) of .01 line and arc and on a 45 degree angle?

[jeff]

Wait. you want it to move in X only?

And climb cut only?

 

If so then disregard my lead in/out suggestion.

[Hertz]

Yes that is what I'm looking for. Not sure if its possible. I can't figure it out anyway. (Without drawing a bunch of geometry lines)

[Leigh @ Kodiak]

If you really want to accomplish this in a "high speed" manner, use peel mill.

[K2csq7]

Like this?

[Hertz]

I can't open it cause I'm at home but I'll check it out on Monday K2csq7. Thanks. Wouldn't peel mill do the same as the dynamic core? Will peel mill use a rapid back instead of a feedrate? I'll have to try them out on Monday.

[crazy^millman]

Peel mill is not the same it is designed to do the micro lift and feed rates. the idea is not to waste all that time go up and down when doing the toolpaths. One of my ideas with using peel for roughing open parts over Core Rough. Core rough to me is to much movement. If you want the Peel mill process with the constant retracts can change it 2.0 lift with 1000 imp feed rate. then you could write post logic that if it saw 1000 ipm feed rate it converted it to G00. Crazy talk, but I like Peel mill for roughing and doing everything in my power even if that means drawing geometry needed to use it.

[Manuel0822]

You can Try with 2D Blend, I believe that will do the trick or just as on K2csq7 file, Just shorten up your Lead out line by .05" from .1875 to .1375 and you'll get exactly what I think you want.

 

HTH

[crazy^millman]

Here is something I did to give you some ideas where I think Peel Mill is better at HST than just about any other toolpath.

 

 

Edit:

Download removed email me for file.

Edited November 12, 2013 by Crazy^Millman

[Hertz]

Peel mill is not the same it is designed to do the micro lift and feed rates. the idea is not to waste all that time go up and down when doing the toolpaths. One of my ideas with using peel for roughing open parts over Core Rough. Core rough to me is to much movement. If you want the Peel mill process with the constant retracts can change it 2.0 lift with 1000 imp feed rate. then you could write post logic that if it saw 1000 ipm feed rate it converted it to G00. Crazy talk, but I like Peel mill for roughing and doing everything in my power even if that means drawing geometry needed to use it.

 

You say peel mill is designed to do the micro lift and feedrates.. This is what I meant by dynamic toolpaths being similar. I do the same with dynamic core, area, rest, etc. I truly adore these toolpaths,. I have to be honest, I have never used the peel mill option so I was only speculating from what I have seen. So what does the peel mill do that is different than the dynamic toolpaths?

[crazy^millman]

Did you download the file? Sorry but to me that should pretty much sum it up. 2D Blend HST would not be my 1st choice and maybe I should have pointed it out and not assumed people would see how it would not be my choice for HST in those examples and peel mill shows it's true power and strength. The difference in the chains the Mastercam lettering all peel milled and then bottom 2 lines at it peel milled that HST process all the way. Just amazing what peel mill can do. I again prefer it over Core Rough as my open part 3D process. I even have started using it on 3D parts that are closed shape. I make the path to my depth where I can. I then do a ramp contour to make my start of peel mill work I then take surface finish contour and use it to step up the part. I get me process in like I want, I get my peel mill like I want and then I get the same step up that all the HST tool paths are doing. More work, but the program is what I want how I want and making the machine run good is worth my time.

[GoetzInd]

1000 imp feed rate. then you could write post logic that if it saw 1000 ipm feed rate it converted it to G00.

 

Good idea Ron. Gonna have to try that out.

 

Mike

[crazy^millman]

Mike okay, but need to think about that and make sure you understand what that means. G00 moves are never arcs they are always linear moves. I throw out ideas to throw out ideas, but need to think it through and then go from there. My example file uses 10% filtering not the 95% default Mastercam uses. My example filé should pretty much cover the spectum of shapes se can se, but trem all. Verisurf has a slice utility for mess I would love to see CNC Software add to Silouette Boundary. Great it does shapes, but I would love to get cross sections and certain depths without Having to decide my depth go to front view offset my line then project it to the model to then get the cross sections I want. Pick a height for Silouette Boundary do it done. Want more depths than one do it done. Then you are off and running for peel. I am working on 3D Sample files and will be posting them up. Yeah I should be doing what some others are doing and making nice videos and charging everyone to learn, but just not my way. I am blessed to know the people I know from here and plus this forum stepped up an took care of me and my family when I was sick earlier this year so glad to give back to this place and people I am honored in most cases to call my friends.

[Jeremy Herron@DBS Solutions™]

I have to use peel on a lot of the work I am doing over the "opti" toolpaths. I love them for aluminum, but in titanium or the super alloys, the last little piece of material on a z depth level will often chip my endmill. With peel I can avoid this situation.

[Hertz]

Did you download the file? Sorry but to me that should pretty much sum it up.

I can't open it cause I'm at home but I'll check it out on Monday

 

So no I have not downloaded it yet. I will indeed take a look on Monday but I just wanted some more literature on the peel mill toolpath is all. Thanks again.

[Hertz]

Like this?

 

lol ya this is pretty much was I was doing except I never changed the lead in and out. Thank you. This would work.

[K2csq7]

lol ya this is pretty much was I was doing except I never changed the lead in and out. Thank you. This would work.

#Winning

[K2csq7]

Ron, thanks for the file. D'loaded & saved for future ref!

Hertz, Ron's peel mill suggestion is the correct way to get what you are after. If the code is to large for your machine.... Try filtering it waaaaaaaaaaaaaaaay down, it should not be much larger than the code from my file.

[Hertz]

Ron, thanks for the file. D'loaded & saved for future ref!

Hertz, Ron's peel mill suggestion is the correct way to get what you are after. If the code is to large for your machine.... Try filtering it waaaaaaaaaaaaaaaay down, it should not be much larger than the code from my file.

 

Yup, you are 100% right. I used the peel mill and it was much nicer. Just had to add 1 line of geometry so no big deal. It allowed me to move along the x axis just like I was looking for. Thanks Crazy and K2. God how far I'd be behind without the resources of this site. Appreciate it.

[crazy^millman]

Hertz, that is why I do it just to help and glad you got something out of it.

[crazy^millman]

I bumped this topic for those that would like to download the file. Friday I will pull out the file to give me space to keep adding files.

 

Look one the 1st page for the download.