Help with toolpath please, Mastercam 2017

[nperry]

https://www.dropbox.com/s/6moenbw2lm7h2ah/5015998.mcam?dl=0

Hey guys, there's my file. I'm struggling a bit here and I'm hoping someone can help me out. This is potentially going to go on one of our HMCs. The flowline toolpath is set up just how I'd prefer to machine it in this case as the machine this part is going on is severely limited on memory. Someone from another forum showed me how to change the filter on the helical style flowline so that it doesn't post out as much code. That could work, but the plunge doesn't leave much scallop to speak of and I think if I get the entry right I should be able to program all three tapered bores in one program. 

Anyways, it's the swept 3D portion of the program that I'm struggling with. The current toolpath almost gets me to where I need to be. The part will have a 2.4375 hole drilled through the center, so what I want to do is use the 2" ball end mill at the edge of that stock, and step it over in .030" increments until it gets to the beginning of the flowline path that starts at 9 o'clock (this is from front view). There's two problems with the swept 3D path -

1). It travels the entire length of the contour on every pass. Is there any path where I can set up my stock, then I can have it plunge along the path of the taper only to where it needs to go based on the remaining stock?

2). The swept 3D path outputs as a ton of very small x movements, whereas the flowline outputs point XYZ to point XYZ. This is really troublesome for the limited memory that I mentioned before.

Thanks everyone for any pointers.

[crazy^millman]

Neither of those toolpaths use Stock model in their toolpath calculations so neither will respect stock that is or isn't present even if you went through the trouble of using stock models. A HST toolpath  like Plunge Milling might respect the stock model, but I old schooled what you put up. The best way will you figuring out what you really need and don't need. I took your 3D swept and back plotted it level 500. I then created my own wireframe on level 501 from it. I then made a 3D toolpath and then transformed it the .02987 20 times and here is a link to the file:

5th Axis Help

Here is the resulting NC code using a Generic Post.

%
O0000(5TH AXIS 5015998)
(DATE=DD-MM-YY - 30-07-18 TIME=HH:MM - 11:29)
(MCX FILE - C:\USERS\RON\DOCUMENTS\MY MCAM2017\MCX\5TH AXIS 5015998.MCAM)
(NC FILE - C:\USERS\RON\DOCUMENTS\MY MCAM2017\MILL\NC\5TH AXIS 5015998.NC)
(MATERIAL - ALUMINUM INCH - 2024)
( T317 | 2 INCH BALL ENDMILL | H317 )
N100 G20
N102 G0 G17 G40 G49 G80 G90
N104 T317 M6
N106 G0 G90 G54 X-.25 Y0. B0. S267 M3
N108 G43 H317 Z5.075
N110 G1 Z4.875 F6.42
N112 X.1932 Z-1.2026
N114 G0 Z5.075
N116 X-.2799
N118 G1 Z4.875
N120 X.1633 Z-1.2026
N122 G0 Z5.075
N124 X-.3097
N126 G1 Z4.875
N128 X.1334 Z-1.2026
N130 G0 Z5.075
N132 X-.3396
N134 G1 Z4.875
N136 X.1036 Z-1.2026
N138 G0 Z5.075
N140 X-.3695
N142 G1 Z4.875
N144 X.0737 Z-1.2026
N146 G0 Z5.075
N148 X-.3993
N150 G1 Z4.875
N152 X.0438 Z-1.2026
N154 G0 Z5.075
N156 X-.4292
N158 G1 Z4.875
N160 X.0139 Z-1.2026
N162 G0 Z5.075
N164 X-.4591
N166 G1 Z4.875
N168 X-.0159 Z-1.2026
N170 G0 Z5.075
N172 X-.489
N174 G1 Z4.875
N176 X-.0458 Z-1.2026
N178 G0 Z5.075
N180 X-.5188
N182 G1 Z4.875
N184 X-.0757 Z-1.2026
N186 G0 Z5.075
N188 X-.5487
N190 G1 Z4.875
N192 X-.1055 Z-1.2026
N194 G0 Z5.075
N196 X-.5786
N198 G1 Z4.875
N200 X-.1354 Z-1.2026
N202 G0 Z5.075
N204 X-.6084
N206 G1 Z4.875
N208 X-.1653 Z-1.2026
N210 G0 Z5.075
N212 X-.6383
N214 G1 Z4.875
N216 X-.1951 Z-1.2026
N218 G0 Z5.075
N220 X-.6682
N222 G1 Z4.875
N224 X-.225 Z-1.2026
N226 G0 Z5.075
N228 X-.698
N230 G1 Z4.875
N232 X-.2549 Z-1.2026
N234 G0 Z5.075
N236 X-.7279
N238 G1 Z4.875
N240 X-.2848 Z-1.2026
N242 G0 Z5.075
N244 X-.7578
N246 G1 Z4.875
N248 X-.3146 Z-1.2026
N250 G0 Z5.075
N252 X-.7877
N254 G1 Z4.875
N256 X-.3445 Z-1.2026
N258 G0 Z5.075
N260 X-.8175
N262 G1 Z4.875
N264 X-.3744 Z-1.2026
N266 G0 Z5.075
N268 M5
N270 G91 G28 Z0.
N272 G28 X0. Y0. B0.
N274 M30

HTH (Hope that helps)

[huskermcdoogle]

2 hours ago, nperry said:

2). The swept 3D path outputs as a ton of very small x movements, whereas the flowline outputs point XYZ to point XYZ. This is really troublesome for the limited memory that I mentioned before.

Increase the along cut, the best you will get is splitting the move into two segments.  But that will drop the NCI size from 800k to 11k.

[nperry]

Thanks a ton guys, this is very helpful stuff.

[crazy^millman]

2 hours ago, nperry said:

Thanks a ton guys, this is very helpful stuff.

Your Welcome.