Why do I get this Z?

[The model shop Inc.]

I generated a topographic finish tool path, my material size is 40”X36.5”X6” thick

And my part size is 39”X35.5”X2.5” thick. I set my origin at the top left corner of my material, so all my Z will be minus, it doesn’t have any wrong tool path show when

Verify, but after I posted to NC file, here is what I‘ve got.

……..

X31.6099Y7.7384Z-6.9506

X31.5942Y7.7385Z-7.0256

X31.5793Y7.7386Z-7.1008

X31.5651Y7.7387Z-7.1762

X31.5518Y7.7388Z-7.2517

X31.5392Y7.7389Z-7.3274

X31.5274Y7.739Z-7.4032

X31.5164Y7.7391Z-7.4791

X31.5062Y7.7392Z-7.5551

X31.4968Y7.7393Z-7.6312

X31.4882Y7.7394Z-7.7074

X31.4804Y7.7395Z-7.7837

X31.4733Y7.7396Z-7.86

X31.4671Y7.7397Z-7.9365

X31.4616Y7.7398Z-8.013

X31.457Y7.7399Z-8.0895

X31.4531Y7.74Z-8.1661

X31.45Y7.7401Z-8.2427

X31.4478Y7.7402Z-8.3194

X31.4463Y7.7403Z-8.3961

X31.4456Y7.7404Z-8.4728

X31.4457Y7.7405Z-8.5494

X31.4467Y7.7406Z-8.6261

X31.4484Y7.7408Z-8.7028

X31.4509Y7.7409Z-8.7794

X31.4542Y7.741Z-8.8561

X31.4583Y7.7411Z-8.9326

X31.4632Y7.7412Z-9.0092

X31.4689Y7.7413Z-9.0857

X31.4753Y7.7414Z-9.1621

X31.4826Y7.7415Z-9.2384

X31.4907Y7.7416Z-9.3147

X31.4996Y7.7417Z-9.3909

X31.5092Y7.7418Z-9.4669

X31.5196Y7.7419Z-9.5429

X31.5309Y7.742Z-9.6188

X31.5429Y7.7421Z-9.6945

X31.5557Y7.7422Z-9.7701

X31.5693Y7.7423Z-9.8456

X31.5837Y7.7424Z-9.9209

X31.5988Y7.7425Z-9.9961

X31.6147Y7.7426Z-10.0711

X31.6314Y7.7427Z-10.146

X31.6489Y7.7428Z-10.2206

X31.6672Y7.7429Z-10.2951

X31.6862Y7.743Z-10.3694

X31.706Y7.7431Z-10.4435

X31.7266Y7.7432Z-10.5174

X31.7479Y7.7433Z-10.591

X31.77Y7.7434Z-10.6645

X31.7929Y7.7435Z-10.7377

X31.8165Y7.7436Z-10.8106

X31.8409Y7.7437Z-10.8834

X31.866Y7.7439Z-10.9558

X31.8919Y7.744Z-11.028

X31.9186Y7.7441Z-11.0999

X31.9459Y7.7442Z-11.1715

X31.974Y7.7443Z-11.2429

X32.0029Y7.7444Z-11.3139

X32.0325Y7.7445Z-11.3847

X32.0628Y7.7446Z-11.4551

X32.0939Y7.7447Z-11.5253

X32.1257Y7.7448Z-11.595

X32.1582Y7.7449Z-11.6645

X32.1914Y7.745Z-11.7336

X32.2254Y7.7451Z-11.8024

X32.26Y7.7452Z-11.8708

X32.2954Y7.7453Z-11.9388

X32.3314Y7.7454Z-12.0065

………

 

Since I can’t let my Z go more than 6”, what has gone wrong?

 

Your help is very much appreciated.

[Guest]

Not sure if this is your problem or not but...

 

Have you changed your WCS? I'd also check your toolplanes to make sure they are correct.

 

It almost looks like it is trying to reach from the bottom of the part instead of the top.

[Eric S.]

Looks like you work offset is not at the top of your material. Try and analyze a point on the top of your part and see where it is at. If that is right you might want to also check the operation Top of stock and Depth settings?

[Midwest]

Push the F9 key and see where your tool orgin is. Brown is (Part or Cad orgin), Blue is (Tool Orgin) if you only see the brown then they are both the same point.

[Shop Wench]

Wow thanks Midwest. Didn't know that.

[Midwest]

quote:

---

Wow thanks Midwest. Didn't know that.

---

 

[BernieT]

Model Shop, I am sure your tool plane and/or Cplane is set to Side or Front.

 

Toolpaths-Operations-Parameters-T/C Plane make sure Cplane and T plane are set to TOP.

 

HTH

[Midwest]

Did you find the problem?????

[Midwest]

quote:

---

Wow thanks Midwest. Didn't know that.

---

Just wanted to add............The Green axis is the Construction orgin if you move you construction axis around.

 

[The model shop Inc.]

Thanks indeed for all your help, I checked every aspect you mentioned here, but none of them seems to be the case.

 

I have four surfaces to work and they are all the same size except the z, I had the surface-1 done beautifully but start from surface-2 I have problem with the finish path, there is no problem occur on the rough path.

 

After I done all the checks upon your suggestions, I had a thought about my post processor, here is what I did:

 

1: use the default post processor RPFAN.PST to post my surface-2 finish path.

2: use my PRICIX_MODELSHOP.PST to post the same. ( This post processor was

Written two years ago by our MasterCam dealer and I have been using it ever since, and I used this processor posted my surface-1 path.)

I repeat the same two steps to post surface-3 finish path

 

Here is what I found:

 

When I use default processor, all the NC code look like this:

 

X1.6387Z-1.2875K-32.8133

G3X1.592Z-1.2928I-.0467K.2015

X1.5824Z-1.2926K.2068

G1X1.5693Z-1.2879

G2X1.3664Z-1.287I-.2028K-23.2538

X1.1694Z-1.2879K-23.2547

G3X1.0842Z-1.2954I-.0852K.475

X1.077K.4825

G2X.9019Z-1.3444I.0339K-.4577

X.8317Z-1.4052I.1234K-.2137

G1X.7531Z-1.5062

G2X.7191Z-1.5849I.2062K-.1356

G1X.7179Z-1.5916

X.698Z-1.6372

G2X.6366Z-1.7361I.4012K-.3179

G1X.6074Z-1.7704

X.5947Z-1.7709

G3X.5372Z-1.7855I-1.7222K6.6224

G1X.5259Z-1.7904

G2X.4968Z-1.7872I-.0291K-.1301

X.4833Z-1.7879K-.1333

X.3821Z-1.7872I-.1013K-8.0339

X.3168Z-1.7875K-8.0345

 

 

When I use the other processor, beside all the code above, it also contains part of code as below and all the wrong z are in this part.

 

X1.5286Y7.5646Z-5.7032

X1.4931Y7.5648Z-5.7236

X1.4572Y7.565Z-5.7433

X1.4209Y7.5652Z-5.7623

X1.3843Y7.5654Z-5.7806

X1.3473Y7.5656Z-5.7982

X1.3099Y7.5658Z-5.815

X1.2723Y7.566Z-5.8312

X1.2344Y7.5662Z-5.8466

X1.1961Y7.5664Z-5.8612

X1.1576Y7.5666Z-5.8751

X1.1188Y7.5668Z-5.8883

X1.0798Y7.567Z-5.9007

X1.0405Y7.5671Z-5.9124

X1.0011Y7.5673Z-5.9233

 

I tried to upload my files on the cadcam’s FTP site, but I can’t open it, any other ideas can help me are very my appreciated.

[The model shop Inc.]

I may need permit to upload my files on the FTP site, anyone knows how can I get it?