Solids problem

[Randy Morton @ Clem Industrial]

I am drawing a nut. Obviously one side is threaded, the other has a hex. So, I have my solid all drawn up, without the hex. So I put a 6 sided polygon on the left side, go solids extrude cut, in towards the part by .45" and get an error;

 

Parasolid® Kernel Interface Error:

Boolean Error:

Operation would result in non-manifold body.

 

What the heck does this mean? I just want to see my hex on my model...

 

Any help would be great!

[Guest]

Do you already have the edges radiused?

 

If remove them and radius after the hex cut

 

Are you extruding or extrude cutting?

[Müřlıń®]

Trim your solid to a plane and use the lines on your hex

[toolall1]

be careful not to go line for line offset your chain .0001 and re-try

[Randy Morton @ Clem Industrial]

John,

 

I don't have radius's on the hex edges. And I am extrude cutting, that is what gives me the error.

 

Murlin, I don't know how to do that. =]

 

Toolall1, Tried, didn't work.

[beej]

non manifold means you are making one solid into two by slicing something off and leaving slivers of the original. try extruding with wall thickness twice as thick as necessary with the stock going outward.

 

hth

[Pete Rimkus from CNC Software Inc.]

Do you need to put a bigger rectangle around the hexagon? If you're 'cut'-ting with the hexagon, it'll put a hexagonal hole in your part. If you 'cut' with the hexagon and the outer rectangle, it'll remove the material between the hexagon and the rectangle, instead of what's inside the hexagon.

[billystein]

try doing half of the hex at a time

or extrude the hex to create solid first

[Grievous]

My advice man is to work with a profesional Cad system. No ofence to enyone but Mastercam is 10 years behind the market in this aspect(CAD). From my opinion Mastercam is still great because the CAM capabilities. But CAD..?!?!?! su..s. Is like in early '90. X is a improvement in grafical interface(relative to 9 who look like ACAD13) but the core engine have litle improvements. Everybody must realise that the CADCAM market is moving very quikly and software with the same capabilities(in CAM+CAD) even better then Mastercam are growing (see the bundle Solidworks+Solidcam). I think the "Mastercam" must reconsider the ideea of beeing a complete CAD+CAM system and try to integrate under a profesional CAD system (Solidworks, Solidedge, Inventor, CATIA etc).Look at Solidcam ..who know this company 3-4 years ago? Now is the most rapidly-growing CAM vendor.Why? Stabile (not like X) CAD fundation good CAM capabilities and easy to use. Except CAM capabilities what Mastercam have? I tell you zero bites file when you try to save your work. With this capabilities I understand why other software have such growing. No offence to enyone but I just tell my opinion.

[gcode]

quote:

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No offence to enyone but I just tell my opinion.

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I'll bet you'd sell me a seat

of Solidcam , if I wanted one.

 

Did the demo, its not bad, but its not there yet.

I do wish MC would bundle into SolidWorks though.

[Grievous]

I will not sell you nothing. I'm a Mastercam user man. Sorry but you missunderstood my mesage.I'm not making advertising. Again I just tell my opinion

[Grievous]

And anothet thing "gcode".There is no software on market with the CAM capabilities of Mastercam. But something must be done in CAD direction. The software witch I mention is just an example.

[gcode]

quote:

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But something must be done in CAD direction

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I use SolidWorks for my CAD work and bring it into X as parasolids.

As I said in my ealier post, it sure would be nice to draw and cut in the same package.

If Dassualt were smart, they would bundle a light version of Catia inside SolidWorks and price it to compete with Mastercam, Surfcam, SolidCam etc.

That would really stir things up

[beej]

I could not agree more. I've been really disappointed with Mastercam's solids. Mastercam has had and probably still has one of the best surface packages I've used in any system and that includes unigraphics, cimatron, and several others. Their cam system is also topnotch since the release of mr1. But the solids capability is dispicable. I've never used a system that turned a solid into a sheet body when removing a face. Or a solid modeler that could not move a face and maintain draft and fillets.

 

The thing that brings me hope is that they have this capability in the parasolid kernel which is the same kernel that unigraphics, solidworks and several other reputable cad systems are using. But there doesn't seem to be any push to make their solids better. Maybe that's our fault for not demanding it.

[Müřlıń®]

milling man, If your outside dia of your solid blank is not bigger than the sharp further most edges of your hex, rebuild the curve and regen your soldi so where when you look down on the top you can see your hex and it is totally on the inside of the circle you made to make your blank.

 

Then. go to solid menu and trim/solid/plane/line and pick the cut of your hex one line at a time.

 

When you pick on a line there will be a directional arros asking you which side to keep.

 

You can flip this arrow and make your cut.

Repeat for other 5 sides.

 

Sometimes extrude will not work too good because of already boolean added entities to the solids cause problems.

 

Mastercam solids work fine if you know how and when to use them.

 

 

HTH

[JG]

M

[JG]

millingman,

if you "cut" will result in more than 1 body, then you have a dis-joint body, following petes advice should fix the issue.

 

Jg

[beej]

quote:

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Mastercam solids work fine if you know how and when to use them

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I can always get done what I need to get done with mastercam solids, that is true. But I could always get done what I needed to get done with surfaces too. That doesn't make it "fine" just do-able.