advanced 5 axis

[shazam/TPP]

after creating a toolpath in advanced 5 axis such as a helical type vane on a cylinder, i post it out as 4 axis but the feedrate doesn't post correctly. Meaning at some areas it really crawls. If i give it a 5 ipm naturally it will be a faster feed where there are "A" axis moves,

but in some the feed is way to slow. I've tried all the 4 axis posts that came with X2 MR1, but same results with all of them. I have to through all my code to adjust those areas. Is this something I'm just going to have to deal with? Is it a Mastercam issue? or a post issue? thanks for all replies!

[crazy^millman]

Are you using inverse time? If so does your machine have a max value of 9999.999 for the inverse time feedrate? Does your post now output to the max of 999.999 if so this might be your problem.

 

HTH

[Greg Williams]

Can you show us a sample of your code?

[shazam/TPP]

Greg,

here are some of the code

 

N9 T13 M06 (.125 CARBIDE E-MILL)

N10 G00 G90 G54 X.0695 Y-.0008 A-.079 S2500 M03

N11 G43 H13 Z.8995 M08

N12 G91 Z-.1

N13 G01 Z-.412 F5.

N14 X-.0025 Y-.0248 Z-.0001 A.014 F3.

N15 X-.0117 Y-.0251 Z.0001 A.011

N16 X-.0159 Y-.017 A.005

N17 X-.0285 Y-.0149 A-.01

N18 X-.0258 Y-.0029 A-.016

N19 X-.0294 Y.0002 Z-.0003 A-.448 F45.52

N20 X-.0288 Y.0002 Z-.0004 A-.849 F86.78

N21 X-.0281 Y.0003 Z-.0007 A-1.208 F123.92

N22 X-.0272 Y.0005 Z-.0007 A-1.524 F157.37

N23 X-.0261 Y.0011 Z-.0007 A-1.801 F187.6

N24 X-.0249 Y.0018 Z-.0007 A-2.039 F215.02

N25 X-.044 Y.0038 Z-.0005 A-4.757 F262.09

N26 X-.0409 Y.0026 Z-.0014 A-5.327 F294.73

N27 X-.0405 Y.002 Z.0024 A-5.344

N28 X-.0501 Y.0027 Z.0008 A-6.701

N29 X-.0682 Y.0034 Z.001 A-9.32

N30 X-.0656 Y.0031 Z.0012 A-9.068

N31 X-.0114 Y.0025 Z.0001 A-1.3 F266.83

N32 X-.0147 Y.0236 Z.0001 A.038 F4.11

N33 X-.0045 Y.0205 A.059

N34 X-.0002 Y.0289 Z-.0001 A-2.464 F221.62

N35 X.004 Y.0232 A-.014 F3.

N36 X.0148 Y.0247 Z.0001 A-.004

N37 X.0176 Y.0139 A.007

N38 X.0241 Y.0087 A.029

N39 X.0269 Y-.0005 Z-.0001 A.038

N40 X.0253 Y-.011 A.034

N41 X.0235 Y-.0079 Z.0002 A2.049 F216.11

N42 X.0664 Y-.0024 Z.0009 A9.307 F304.67

N43 X.0664 Y-.0021 Z.0008 A9.271

N44 X.0667 Y-.0026 Z.0008 A9.134

N45 X.0539 Y-.0022 Z.0005 A7.227

N46 X.0334 Y.0044 Z.0001 A5.19 F318.42

N47 X.0148 Y.0059 Z-.0004 A2.548

N48 X.0142 Y.007 Z-.0007 A2.321

N49 X.0158 Y.0057 Z-.0008 A1.945 F272.45

N50 X.0166 Y.0046 Z-.0008 A1.514 F226.47

N51 X.0526 Y-.0003 Z-.0008 A1.466 F82.18

N52 X.023 Y-.0135 A.007 F3.

N53 X.016 Y-.018 A-.005

N54 X.011 Y-.0256 Z.0001 A-.015

N55 X.002 Y-.0245

N56 Z-.023

N57 X-.0039 Y-.0294 Z-.0001 A.016

N58 X-.0089 Y-.0184 Z.0001 A.009

N59 X-.0155 Y-.0176 A.005

N60 X-.019 Y-.0122 A-.004

N61 X-.0185 Y-.0059 A-.011

N62 X-.0129 Y-.0013 A-.009

N63 X-.034 Y.0002 Z-.0003 A-.45 F39.54

N64 X-.0556 Y.0002 Z-.001 A-2.057 F108.06

N65 X-.0524 Y.0011 Z-.0014 A-3.325 F176.65

N66 X-.0246 Y.0015 Z-.0007 A-2.039 F220.06

N67 X-.0442 Y.0034 Z-.0005 A-4.757 F266.97

N68 X-.0413 Y.0027 Z-.0013 A-5.354 F301.34

N69 X-.0411 Y.002 Z.0023 A-5.376

N70 X-.0503 Y.0027 Z.0007 A-6.701

N71 X-.0681 Y.0034 Z.001 A-9.259

N72 X-.0662 Y.003 Z.0012 A-9.07

N73 X-.0178 Y.0097 Z.0001 A-1.296 F177.95

N74 X-.0116 Y.0228 Z.0001 A.052 F6.05

N75 X-.0028 Y.0142 A.039

N76 X-.0001 Y.0357 Z-.0001 A-2.471 F190.12

N77 X.0049 Y.0209 A-.005 F3.

N78 X.0111 Y.0187 Z.0001 A-.004

N79 X.0166 Y.0148 A.005

N80 X.0221 Y.0096 A.025

N81 X.0226 Y.0021 A.033

N82 X.0281 Y-.008 Z-.0001 A.038

N83 X.0063 Y-.0039 A.008

N84 X.0439 Y-.0077 Z.0005 A4.99 F273.51

N85 X.0637 Y-.0021 Z.0008 A8.891 F312.5

N86 X.0425 Y-.0014 Z.0005 A5.894

N87 X.0602 Y-.0021 Z.0007 A8.234

N88 X.0687 Y-.0022 Z.0005 A9.308

N89 X.0318 Y.0037 Z.0002 A4.85 F326.04

N90 X.0141 Y.0053 Z-.0004 A2.436 F337.02

N91 X.0135 Y.0064 Z-.0006 A2.237 F324.49

N92 X.015 Y.0053 Z-.0008 A1.902 F284.77

N93 X.0157 Y.0043 Z-.0007 A1.517 F239.88

N94 X.0606 Y-.0019 Z-.0009 A1.714 F83.46

N95 X.0207 Y-.0135 A.005 F3.

N96 X.0148 Y-.0177 A-.006

N97 X.0102 Y-.0252 Z.0001 A-.014

N98 X.0017 Y-.0232

N99 Y-.0001 Z-.023

N100 X-.0026 Y-.0248 Z-.0001 A.014

N101 X-.0137 Y-.0278 Z.0001 A.013

N102 X-.0239 Y-.0212 A.001

 

 

thanks

[crazy^millman]

Your machine see the A move and coverts that to degree per minute feed rate. I would change the posted code to inverse time and you should see much better results on the machine and keep a more predictable feedrate.

 

HTH

 

[ 05-08-2007, 11:19 AM: Message edited by: Crazy^Millman ]

[shazam/TPP]

yes i tried that as well no difference in the posting. i'm using the mpmaster post. the main problem is the small A moves with the X & Y axis the feedrates are low and the machine will crawl in those areas. thanks again for the response!

[crazy^millman]

Had to be a difference in the posting because you would have a G93 to turn it on and a G94/G95 to turn it off which would should make the machine work different that with the code you have posted above.

 

Also read this thread and go the great link someone put up there about inverse time. 5 axis Motion Thread.

 

HTH

[shazam/TPP]

Thanks crazymillman i read the other post and i had to edit my post to allow the G93 works great

now. editing thru mastercam didn't actually change it to inverse. problem solved thank you Crazy^Millman and to this great forum site. Excellent members and staff!!!!