Problems with Surfacing a Pocket

[Don K]

I am having a problem trying to surface a pocket.

Is there anyway to attach this file to a post?

 

I am currently using Mastercam 4, version 4. This part is driving me nuts because I cant figure out how to surface the pocket.

 

Any help would be appreciated.

[Mr. M]

You can put it on the fpt site at the top of the page. You can also put a picture in the post using photobucket using the html code

[Don K]

I've tried using Swept, Net and Revolved and a combination of a Swept and Revolved. I am obviously missing something.

 

 

[Mr. M]

Just save it in the X4 file on the ftp and tell us what the name is.

[Don K]

And here is a print of the part. I believe I have all of the given wireframe geometry drawn correctly. Its the surfacing of the pocket I am having problems completing.

 

[Don K]

I've tried saving it on the ftp site. I have an ftp site myself so I am very familiar with them.

Its asking me for a username and password when I try to open the site in Windows Explorer. Viewing in FTP format will not allow the file to be copied and pasted or dragged as mentioned in the instructions.

 

[ 02-13-2010, 10:16 PM: Message edited by: Don K ]

[crazy^millman]

HST toolpath would do very nice here. If you want to old school it then you could use surface finish contour and see what that does. Many choices here.

 

FTP basics 101.

 

Question always comes up so here is FTP methods 101.

 

#1 Download a free FTP client program. Filezilla is a free one I recommend and here their download link:

 

FileZilla Client Download.

 

Install the program on put the information for access the FTP to upload programs one time then all you need to do is hit quick connect and everything will be set-up from that point forward.

 

 

I tried drawing your solid, much easier if you put a file on the FTP.

 

Thanks.

[gcode]

ftp username = mastercam

password = swiss

 

Ron I think Don it trying to create surfaces

not cut the part

[mchin-pilot]

. . . . . Its modelling in question?

[iowajim62]

DonK,

I see .60 and .625 depth callouts. Is that for the pocket ? For swept to work you would need to define the back wall that is straight with .375R and even then the transition from angled wall with .25R to straight wall with .375R going around the 2.00R might result in an error.

 

If the pocket tapers down your going to need to define more construction geo to create surfaces that could then be trimmed to each other.

[BernieT]

How is this?

 

 

 

I'll put it on the FTP as SurfaceProblem-BT.MC9 in the MC9 folder.

 

I ignored the .625 dim.

 

HTH

[Don K]

Okay guys... my file is out there in FTP land.

Mill3Dtest1.mcx is the file name and I put it out there in the X4 files directory.

 

Thanks goes out to gcode for providing the username and password.

[BernieT]

Yes, I used swept for the side surfs and ruled for the end and bottom.

[MotorCityMinion]

Worked fine with surface rgh pocket, .50 bull, .062r.

 

Surfaces finish blend, 3/8 ball, chain outside and a center point, one way, across .01 step over. Puts out a sweet radial type finish.

 

The 1st model you posted should have worked fine.

[Don K]

BT,

 

Did you create surface fillets in the corners or create wireframe fillets?

 

I still cannot get this to chain up.

[MotorCityMinion]

"I will also be cutting the part with a Surface Rough Pocket and a Surface Finish contour routine".

 

Just saw this and did not realize you were trying to draw it. I thought your problem was machining it, sorry about the confusion.

 

[ 02-14-2010, 01:42 PM: Message edited by: MotorCityMinion ]

[BernieT]

I used coons patch in the corners.

 

In X4 I think you have a 3 or 4 side surf that works the same. Not sure.

[Thad]

quote:

---

In X4 I think you have a 3 or 4 side surf that works the same. Not sure.

---

Or use the coons chook.

 

Thad

[Don K]

Well I finally got this thing drawn up to print... almost. I could not get the .375 radii to blend so I changed them to 3/16.

 

I did manage to use a net surface on the left half of the part and I ruled the right half.

 

I completed the toolpaths. Could somebody critique this for me?

 

I put the file out in ftp as Mill3DTest1_Rev2.

 

Thanks